The Experts below are selected from a list of 45363 Experts worldwide ranked by ideXlab platform

Bhim Singh - One of the best experts on this subject based on the ideXlab platform.

  • Modified Electronic Load Controller for Constant Frequency Operation with Voltage Regulation of Small Hydro-Driven Single-Phase SEIG
    IEEE Transactions on Industry Applications, 2016
    Co-Authors: Ujjwal Kumar Kalla, Bhim Singh, S. S. Murthy
    Abstract:

    This paper is aimed at design and implementation of a modified electronic Load Controller (MELC) for constant frequency operation with voltage regulation of a two winding single-phase self-excited induction generator (SEIG) applicable for renewable energy applications specifically for off-grid power generation using a small hydro energy. The system frequency is maintained constant at a reference level for fixed as well as variable input mechanical power to the prime mover experienced in small hydro systems due to seasonal variations. The point of common coupling (PCC) voltage is also regulated by the Controller at varying Loads by controlling the power flow to the dump Load. The proposed MELC is presented for the first time for constant frequency generation and voltage regulation of single-phase SEIG with frequency as a feedback variable.

  • IAS - Modified electronic Load Controller for constant frequency operation with voltage regulation of small hydro driven single-phase SEIG
    2015 IEEE Industry Applications Society Annual Meeting, 2015
    Co-Authors: Ujjwal Kumar Kalla, Bhim Singh, Shruti Murthy
    Abstract:

    This paper is aimed at design and implementation of a modified electronic Load Controller (MELC) for constant frequency operation with voltage regulation of a two winding single-phase self-excited induction generator (SEIG) applicable for renewable energy applications specifically for off-grid power generation using a small hydro energy. The system frequency is maintained constant at a reference level for fixed as well as variable input mechanical power to the prime mover experienced in small hydro systems due to seasonal variations. The point of common coupling (PCC) voltage is also regulated by the Controller at varying Loads by controlling the power flow to the dump Load. The proposed MELC is presented for the first time for constant frequency generation and voltage regulation of single-phase SEIG with frequency as a feedback variable.

  • Design and implementation of dynamic electronic Load Controller for three-phase self-excited induction generator in remote small-hydro power generation
    IET Renewable Power Generation, 2014
    Co-Authors: Rajasekharareddy Chilipi, S. S. Murthy, Bhim Singh, Sandeep Madishetti, Gurumoorthy Bhuvaneswari
    Abstract:

    This study presents design and implementation of a dynamic electronic Load Controller (DELC) for voltage and frequency control of a three-phase self-excited induction generator (SEIG) driven by constant power unregulated small-hydro turbine. This DELC is a combination of insulated-gate bipolar transistor-based voltage sourced converter (VSC) and variable frequency drive (VFD) which is connected across the DC link of VSC. The VFD operates in direct torque control mode and is coupled with a pumping system. The DELC is connected at point of common coupling in parallel with consumer Loads. The VSC provides instantaneous control of the SEIG voltage through reactive power compensation. The VFD consumes the power in excess of consumer Loads to maintain constant generator output power which in turn regulates the frequency. The excess generated power consumed by the VFD is used to pump water either to an overhead tank or for irrigation purposes. The performance of the proposed DELC of SEIG is demonstrated under various types of Loads such as linear/non-linear, balanced/unbalanced Loads and so on. Test results recorded on a developed DELC of SEIG exhibit simultaneous voltage and frequency control capabilities of the DELC under varying Loads.

  • electronic Load Controller with power quality improvement of isolated induction generator for small hydro power generation
    Iet Renewable Power Generation, 2011
    Co-Authors: V. Rajagopal, Bhim Singh, Gaurav Kumar Kasal
    Abstract:

    This study deals with an implementation of an instantaneous reactive power theory-based electronic Load Controller (ELC) for regulating the voltage and frequency of an isolated induction generator system (IG) that can supply electricity in remote areas. This ELC provides the fundamental reactive power and compensates harmonics of Load currents. The proposed ELC is a combination of voltage source converter (VSC) with a dc link capacitor, a chopper and an auxiliary Load at its dc bus. It controls active and reactive powers of the small hydro plant thus regulating the voltage and frequency of IG system. This ELC also balances the currents of the IG system under unbalanced Load currents and eliminates the harmonics of the Load currents thereby acting both as a Load balancer and a harmonic eliminator. The zigzag/star transformer optimises the dc bus voltage of VSC and acts as a neutral current compensator. The proposed IG along with its ELC is implemented on a 3.7 kW IG system.

  • Decoupled Electronic Load Controller for Offgrid Induction Generators in Small Hydro Power Generation
    International Journal of Emerging Electric Power Systems, 2011
    Co-Authors: Veeramalla Raja Gopal, Bhim Singh
    Abstract:

    The control of voltage and frequency is one of the prime concerns in small off-grid hydroelectric power plants located in remote and inaccessible places. Induction generators are prime contenders for such applications which are robust, require less maintenance and have low cost. This paper deals with an implementation of a decoupled electronic Load Controller (DELC) for a three-phase induction generator (IG) system in standalone applications. The DELC is a combination of a static synchronous compensator (STATCOM) and conventional electronic Load Controller (ELC). The STATCOM consists of three-phase insulated gate bipolar transistor (IGBT) based current controlled voltage source converter (CC-VSC) with a dc bus capacitor and an ELC consists of an IGBT based chopper and an auxiliary Load on the dc bus of the diode bridge rectifier. An Icos? based control algorithm is used in DELC to regulate terminal voltage and frequency, suppress harmonics and to provide Load balancing. Test results are presented under balanced/unbalanced nonlinear Loads to demonstrate the effectiveness of the DELC for an induction generator system.

Gaurav Kumar Kasal - One of the best experts on this subject based on the ideXlab platform.

  • electronic Load Controller with power quality improvement of isolated induction generator for small hydro power generation
    Iet Renewable Power Generation, 2011
    Co-Authors: V. Rajagopal, Bhim Singh, Gaurav Kumar Kasal
    Abstract:

    This study deals with an implementation of an instantaneous reactive power theory-based electronic Load Controller (ELC) for regulating the voltage and frequency of an isolated induction generator system (IG) that can supply electricity in remote areas. This ELC provides the fundamental reactive power and compensates harmonics of Load currents. The proposed ELC is a combination of voltage source converter (VSC) with a dc link capacitor, a chopper and an auxiliary Load at its dc bus. It controls active and reactive powers of the small hydro plant thus regulating the voltage and frequency of IG system. This ELC also balances the currents of the IG system under unbalanced Load currents and eliminates the harmonics of the Load currents thereby acting both as a Load balancer and a harmonic eliminator. The zigzag/star transformer optimises the dc bus voltage of VSC and acts as a neutral current compensator. The proposed IG along with its ELC is implemented on a 3.7 kW IG system.

  • Electronic Load Controller for a Parallel Operated Isolated Asynchronous Generator Feeding Various Loads
    Journal of Electromagnetic Analysis and Applications, 2011
    Co-Authors: Bhim Singh, Ambrish Chandra, Gaurav Kumar Kasal, Kamal-al Haddad
    Abstract:

    This paper presents an investigation on a voltage and frequency Controller (VFC), which functions as an improved elec-tronic Load Controller (IELC) for parallel operated isolated asynchronous generators (IAGs) in an autonomous hydro power generation system. In such type of hydro scheme whole generating system is isolated from the grid and supply electricity to the remote communities. The single point operation of these generators is realized, in such a manner that excitation capacitors, speeds, Load, voltage, currents of generators remain constant under various operating conditions. The proposed Controller consists of a 3-leg IGBT (Insulated Gate Bipolar Transistor) based voltage source converter (VSC) and a DC chopper with an auxiliary Load at the DC bus of the VSC. The IELC controls the reactive and active powers simultaneously for controlling the voltage and frequency under varying consumer Loads. Along with voltage and frequency control through single point operation of IAGs driven by uncontrolled pico hydro turbines, the IELC meets the power quality standard an IEEE-519 and it keeps the total harmonic distortion (THD) of the terminal voltage and currents within the limit of 5%. Here the proposed electrical system along with its Controller is modeled in MATLAB along with Simulink and PSB (Power System Block-set) toolboxes. Simulation results are presented to demonstrate the capability of proposed Controller for an isolated generating system

  • Voltage source converter with a transformer as an electronic Load Controller for a stand-alone power generation
    International Journal of Energy Technology and Policy, 2010
    Co-Authors: Gaurav Kumar Kasal, Bhim Singh
    Abstract:

    This paper presents a new configuration of a voltage and frequency Controller for a stand alone pico hydro power generating system employing an Isolated Asynchronous Generator (IAG). The proposed Controller is an Electronic Load Controller (ELC), which consists of a three leg IGBT (Insulated Gate Bipolar Junction Transistor) based Voltage Source Converter (VSC), a DC chopper and an auxiliary Load at its DC bus. The neutral terminal for the consumer Loads is created using a star delta transformer and the proposed system is modelled and simulated in MATLAB using Simulink and PSB toolboxes.

  • VSC with zigzag transformer based electronic Load Controller for a stand-alone power generation
    International Journal of Power and Energy Conversion, 2009
    Co-Authors: Gaurav Kumar Kasal, Bhim Singh
    Abstract:

    This paper presents a novel configuration of a voltage and frequency (VF) Controller for a stand-alone pico hydro power generating system employing an asynchronous generator (IAG). The proposed VF Controller is an electronic Load Controller (ELC), which consists of a three leg insulated gate bipolar junction transistor (IGBT) based voltage source converter (VSC), a DC chopper and an auxiliary Load at its DC bus. The neutral terminal for the consumer Loads is created using a zigzag transformer. Three leg VSC is connected to the tertiary winding of the zigzag transformer to select the optimum voltage rating of the DC bus. The control algorithm of the VF Controller is developed to control the system VF under varying consumer Loads. The proposed system is modelled and simulated in MATLAB using Simulink and power system blockset (PSB) toolboxes. Extensive simulation results are presented to demonstrate the capability of the Controller as a harmonic eliminator, a Load balancer, a neutral current compensator along with VF Controller.

  • Zig-zag transformer based electronic Load Controller for an isolated asynchronous generator
    2008 IEEE 2nd International Power and Energy Conference, 2008
    Co-Authors: Gaurav Kumar Kasal, Bhim Singh
    Abstract:

    This paper deals with an electronic Load Controller (ELC) for a stand alone pico hydro power generating system employing an isolated asynchronous generator (IAG). The proposed Controller consists of an electronic Load Controller (ELC), using two leg IGBT (insulated gate bipolar junction transistor) based voltage source converter (VSC), a DC chopper and an auxiliary Load at its DC bus. The neutral terminal for the consumer Loads is created using a zig-zag transformer. A VSC and a zigzag transformer are connected in shunt with the stator terminals of IAG. The control algorithm of the ELC is developed to control the system voltage and frequency under varying consumer Loads. The proposed IAG system is modeled and stimulated in MATLAB using Simulink and PSB toolboxes.

V. Rajagopal - One of the best experts on this subject based on the ideXlab platform.

  • electronic Load Controller with power quality improvement of isolated induction generator for small hydro power generation
    Iet Renewable Power Generation, 2011
    Co-Authors: V. Rajagopal, Bhim Singh, Gaurav Kumar Kasal
    Abstract:

    This study deals with an implementation of an instantaneous reactive power theory-based electronic Load Controller (ELC) for regulating the voltage and frequency of an isolated induction generator system (IG) that can supply electricity in remote areas. This ELC provides the fundamental reactive power and compensates harmonics of Load currents. The proposed ELC is a combination of voltage source converter (VSC) with a dc link capacitor, a chopper and an auxiliary Load at its dc bus. It controls active and reactive powers of the small hydro plant thus regulating the voltage and frequency of IG system. This ELC also balances the currents of the IG system under unbalanced Load currents and eliminates the harmonics of the Load currents thereby acting both as a Load balancer and a harmonic eliminator. The zigzag/star transformer optimises the dc bus voltage of VSC and acts as a neutral current compensator. The proposed IG along with its ELC is implemented on a 3.7 kW IG system.

  • Improved electronic Load Controller for offgrid induction generator in small hydro power generation
    India International Conference on Power Electronics 2010 (IICPE2010), 2011
    Co-Authors: V. Rajagopal, Bhim Singh
    Abstract:

    This paper deals with an implementation of an electronic Load Controller (ELC) using a digital signal processor (DSP) for regulating the voltage and frequency of an offgrid induction generator system (IG) that can supply electricity in remote areas of countries with high year-round rainfall. The proposed generating system consists of IG, ELC and nonlinear consumer Loads. The ELC is combination of three-leg VSC with a dc link capacitor, a chopper and an auxiliary Load at its dc bus. It regulates voltage and frequency of the small hydro plant, Besides this the ELC balances the IG system under unbalanced Loading conditions and eliminates the harmonics of the Loads thereby acting both as a Load leveler and a harmonic eliminator. The proposed IG along with its ELC is implemented on a 3.7kW IAG system using a DSP.

  • Neural-Network-Based Integrated Electronic Load Controller for Isolated Asynchronous Generators in Small Hydro Generation
    IEEE Transactions on Industrial Electronics, 2011
    Co-Authors: Bhim Singh, V. Rajagopal
    Abstract:

    This paper deals with a neural-network (NN)-based integrated electronic Load Controller (IELC) for an isolated asynchronous generator (IAG) driven by a constant-power small hydro uncontrolled turbine feeding three-phase four-wire Loads. The proposed IELC utilizes an NN based on the least mean-square algorithm known as adaptive linear element to extract the fundamental component of Load currents to control the voltage and the frequency of an IAG with Load balancing in an integrated manner. The IELC is realized using zigzag/three single-phase transformers and a six-leg insulated-gate bipolar-transistor-based current-controlled voltage-source converter, a chopper switch, and an auxiliary Load on its dc bus. The proposed IELC, with the generating system, is modeled and simulated in MATLAB environment using Simulink and Simpower System toolboxes. The simulated results are validated with test results on a developed prototype to demonstrate the effectiveness of IELC for the control of an IAG feeding three-phase four-wire linear/nonlinear balanced/unbalanced Loads with neutral-current compensation.

  • Decoupled electronic Load Controller for asynchronous generator in pico-hydro power generation
    2010 5th International Conference on Industrial and Information Systems, 2010
    Co-Authors: Bhim Singh, V. Rajagopal, Ambrish Chandra, Kamal Al-haddad
    Abstract:

    This paper deals with a decoupled electronic Load Controller (DELC) for an isolated asynchronous generator (IAG), used in constant power pico hydro power generation for feeding three-phase four-wire Loads. The proposed DELC is used to control the voltage and frequency in the decoupled manner. The proposed decoupled electronic Load Controller is combination of a voltage regulator (VR) for regulating the voltage and a conventional electronic Load Controller (ELC) for regulating the active power (i.e. frequency). The VR is realized using a star-delta transformer and H-bridge current controlled voltage source converter (VSC) with a capacitor on its dc bus and an ELC is a combination of a three phase diode bridge rectifier with a chopper switch and an auxiliary Load. The proposed electronic Load Controller with the generating system is modeled and simulated in MATLAB along with Simulink and power system blockset (PSB) toolboxes. The simulated results are presented for three-phase four-wire linear/nonlinear Loads with the neutral current compensation to demonstrate its performance.

  • Electronic Load Controller using IcosΦ algorithm for standalone induction generator
    2010 Joint International Conference on Power Electronics Drives and Energy Systems & 2010 Power India, 2010
    Co-Authors: V. Rajagopal, Bhim Singh
    Abstract:

    This paper deals with an electronic Load Controller (ELC) for a standalone induction generator (IG) used in small hydro power generation. The proposed ELC is used to control the voltage and frequency of IG. This ELC is realized using a non-isolated T-connected transformer and three-leg insulated gate bipolar transistors (IGBTs) based current controlled voltage source converter (VSC), a capacitor, a chopper switch and an auxiliary Load on its dc bus. The proposed ELC is implemented on a prototype of 3.7 kW 50 Hz IG. Test results of IG-ELC system are presented to demonstrate its performance for feeding three-phase four-wire Loads with the neutral current compensation.

S. S. Murthy - One of the best experts on this subject based on the ideXlab platform.

  • Modified Electronic Load Controller for Constant Frequency Operation with Voltage Regulation of Small Hydro-Driven Single-Phase SEIG
    IEEE Transactions on Industry Applications, 2016
    Co-Authors: Ujjwal Kumar Kalla, Bhim Singh, S. S. Murthy
    Abstract:

    This paper is aimed at design and implementation of a modified electronic Load Controller (MELC) for constant frequency operation with voltage regulation of a two winding single-phase self-excited induction generator (SEIG) applicable for renewable energy applications specifically for off-grid power generation using a small hydro energy. The system frequency is maintained constant at a reference level for fixed as well as variable input mechanical power to the prime mover experienced in small hydro systems due to seasonal variations. The point of common coupling (PCC) voltage is also regulated by the Controller at varying Loads by controlling the power flow to the dump Load. The proposed MELC is presented for the first time for constant frequency generation and voltage regulation of single-phase SEIG with frequency as a feedback variable.

  • Design and implementation of dynamic electronic Load Controller for three-phase self-excited induction generator in remote small-hydro power generation
    IET Renewable Power Generation, 2014
    Co-Authors: Rajasekharareddy Chilipi, S. S. Murthy, Bhim Singh, Sandeep Madishetti, Gurumoorthy Bhuvaneswari
    Abstract:

    This study presents design and implementation of a dynamic electronic Load Controller (DELC) for voltage and frequency control of a three-phase self-excited induction generator (SEIG) driven by constant power unregulated small-hydro turbine. This DELC is a combination of insulated-gate bipolar transistor-based voltage sourced converter (VSC) and variable frequency drive (VFD) which is connected across the DC link of VSC. The VFD operates in direct torque control mode and is coupled with a pumping system. The DELC is connected at point of common coupling in parallel with consumer Loads. The VSC provides instantaneous control of the SEIG voltage through reactive power compensation. The VFD consumes the power in excess of consumer Loads to maintain constant generator output power which in turn regulates the frequency. The excess generated power consumed by the VFD is used to pump water either to an overhead tank or for irrigation purposes. The performance of the proposed DELC of SEIG is demonstrated under various types of Loads such as linear/non-linear, balanced/unbalanced Loads and so on. Test results recorded on a developed DELC of SEIG exhibit simultaneous voltage and frequency control capabilities of the DELC under varying Loads.

  • Design and fabrication of a low cost analog electronic Load Controller for a self excited induction generator supplying single-phase Loads
    2011 International Conference on Power and Energy Systems, 2011
    Co-Authors: S. S. Murthy, Rajesh Kumar Ahuja, Jeetandra Kr. Chaudhary
    Abstract:

    This paper presents the design of an analog electronic Load Controller (ELC) suitable for stand alone pico-hydel power stations having a three phase SEIG feeding single phase Load, which is highly simple, cost effective and encapsulate protective features. Proposed ELC incorporates 0-100% duty ratio of chopper for PWM pulses. Power supply for Controller and cabinet cooling fan is also extracted from SEIG terminals. Proposed ELC is very cost effective and viable with minimum number of components and full protections, tested in laboratory for 5.5 kW Load. Performance of the above system is simulated and supplemented with experimental results.

  • Design of a MicroController Based Electronic Load Controller for a Self Excited Induction Generator Supplying Single-Phase Loads
    Journal of Power Electronics, 2010
    Co-Authors: Sarsing Gao, S. S. Murthy, Gurumoorthy Bhuvaneswari, M. Sree Lalitha Gayathri
    Abstract:

    The generation of electric power using self excited induction generation (SEIG) is a viable option in remote and rural areas where grid electricity is not available. The generated voltage and frequency of these machines, however, varies with varying Loads. This characteristic can be resolved either by adjusting the values of the excitation capacitance or by controlling the prime mover speed. Further, in a single-point constant power application, where the machines deliver a fixed amount of power, the electronic Load Controller (ELC) can be used to switch-in or switch-out a dump Load whenever the consumer Load decreases or increases respectively. This paper presents a detailed analysis and the design of a microController based SEIG -ELC system intended for stand-alone pico hydro power generation. The simulated performance of the Controller is supplemented by experimental results.

  • Performance analysis of a self excited induction generator with digitally controlled electronic Load Controller for micro hydel power generation
    2008 Joint International Conference on Power System Technology POWERCON and IEEE Power India Conference POWERCON 2008, 2008
    Co-Authors: S. S. Murthy, Sarsing Gao, Gurumoorthy Bhuvaneswari, M. S L Gayathri
    Abstract:

    This paper presents the analysis of dynamic and steady state performance of a self excited induction generator (SEIG) with digitally controlled electronic Load Controller (ELC) feeding single phase Loads. The excitation capacitors, electronic Load Controller, 1-phase Load in conjunction with the d-q model of the 3-phase induction machine taking into account the saturation effect are used to predict the dynamic behavior of the SEIG. The digital control is realized by means of PIC18F252 microController which provides a better performance with increased operational flexibility. Both simulation and hardware results have been presented for the digitally controlled ELC, which is more compact, reliable and cost effective for providing effective voltage regulation for field applications.

Sushma Gupta - One of the best experts on this subject based on the ideXlab platform.

  • analysis and design of electronic Load Controller for self excited induction generators
    IEEE Transactions on Energy Conversion, 2006
    Co-Authors: Bhim Singh, S. S. Murthy, Sushma Gupta
    Abstract:

    This paper presents an analysis and design of an electronic Load Controller (ELC) for three-phase self-excited induction generators (SEIGs) suitable for stand-alone pico-hydro power generation with constant input power. Here, the SEIG can be used to generate constant voltage and frequency if the electrical Load is maintained constant at its terminals. Moreover, under such operation, SEIG requires constant capacitance for excitation resulting in a fixed-point operation. For this purpose, a suitable control scheme has to be developed such that the Load on the SEIG remains constant despite change in the consumer Load. In such applications, water is freely available and, hence, a simple and cheap Controller has to be developed, which can operate almost unattended in remote and hilly regions. The proposed ELC consists of an uncontrolled rectifier and chopper with a series "dump" Load. Proper design of rectifier, chopper, and dump Load is very important for troublefree operation of ELC. In this paper, an analysis along with a design procedure for computing the rating of various components of ELC is presented for a range of SEIGs.

  • Analysis and implementation of an electronic Load Controller for a self-excited induction generator
    IEE Proceedings - Generation Transmission and Distribution, 2004
    Co-Authors: Bhim Singh, Shruti Murthy, Sushma Gupta
    Abstract:

    The modelling of an electronic Load Controller (ELC) for a self-excited induction generator (SEIG), used for power balancing at varying consumer Load as required for stand alone micro-hydel generators driven by uncontrolled turbines, is presented. The implemented ELC consists of a rectifier-chopper system feeding a resistive dump Load whose power consumption is varied through the duty cycle of the chopper. While the dynamic modelling of the SEIG is carried out using d-q variables in a stationary reference frame including magnetic saturation, the ELC is modelled through circuit concepts incorporating a switching function. Both the modelling and control technique of the ELC-SEIG are validated through simulated and experimental results.

  • Transient analysis of self-excited induction generator with electronic Load Controller (ELC) supplying static and dynamic Loads
    The Fifth International Conference on Power Electronics and Drive Systems 2003. PEDS 2003., 2003
    Co-Authors: B. Singh, S. S. Murthy, Sushma Gupta
    Abstract:

    This paper presents a transient analysis of self-excited induction generator (SEIG) with electronic Load Controller (ELC) used in stand alone micro hydel power generation employing uncontrolled turbines. In view of the need to feed both 3-phase induction motor and static Loads from such systems, the transient behaviour due to switching in of such Loads is of interest and is carried out here. Combining the modelling of prime mover, SEIG, ELC and Load has developed a composite mathematical model of the total system. Simulated results are compared with the experimental ones, obtained on a developed laboratory prototype of a SEIG-ELC system by starting a motor and switching in a resistive Load. For the induction motor, a star/delta starter is used to avoid inrush current. Harmonic analysis is carried out to assess total harmonic distortion (THD) in the voltage and current to assess the power quality.

  • An improved electronic Load Controller for self-excited induction generator in micro-Hydel applications
    IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468), 1
    Co-Authors: Bhim Singh, Shruti Murthy, Sushma Gupta
    Abstract:

    This paper describes the mathematical modelling of self-excited induction generators (SEIGs) with are improved electronic Load Controller (IELC) for microhydel applications supplying variety of Loads. In small hydro plants, governor unit of turbine can be eliminated using IELC, which is simple and cost effective. The improved electronic Load Controller is a combination of a three-phase insulated gate bipolar transistor (IGBT) based current controlled voltage source inverter (CC-VSI) and a high frequency DC chopper which keeps the generated voltage and frequency constant in spite of change of balanced/unbalanced Loads. A dynamic model of the SEIG- IELC supplying different types of Loads using stationary d-q axes reference frame is developed for predicting the behavior of the system under transient conditions. The simulation is carried out for compensation of balanced/unbalanced Loading conditions. The simulated results show that generated frequency and voltage remain constant with change in Load. The proposed IELC acts as reactive power compensator, harmonic eliminator, Load balancer and Load Controller.

  • Field experience on a novel picohydel system using self excited induction generator and electronic Load Controller
    The Fifth International Conference on Power Electronics and Drive Systems 2003. PEDS 2003., 1
    Co-Authors: S. S. Murthy, Bhim Singh, Ashish Kulkarni, R. Sivarajan, Sushma Gupta
    Abstract:

    The paper presents a unique filed experience of a standalone power generating scheme using self-excited induction generator and electronic Load Controller by exploiting locally available small hydro potential needing minimal civil works. Water is made to flow in a channel and stored in a fore bay tank whose discharge is regulated to have a near constant head. A Pelton wheel receiving water through a penstock pipe works as a turbine, which drives a self-excited induction generator (SEIG). Two types of electronic Load Controllers (ELC), back-to-back thyristor based ELC and uncontrolled rectifier chopper based ELC were developed and installed in the field to provide power balance at varying consumer Loads. Typical field data are presented to prove the viability of the scheme and compare the performance of the Load Controllers.