The Experts below are selected from a list of 270 Experts worldwide ranked by ideXlab platform

Abdollah Homaifar - One of the best experts on this subject based on the ideXlab platform.

  • Comparison of Quasi Bang-Bang and Sliding Mode Controls for a DC Shunt Motor with Time Delay
    Nonlinear Dynamics, 2000
    Co-Authors: Marwan Bikdash, V. Kunchithapadam, Kaushik Ragunathan, Abdollah Homaifar
    Abstract:

    We propose a hybrid fuzzy-linear controller for a nonlinearterminal voltage-controlled DC Motor. The nonlinearity includes theeffect of magnetization saturation and a nonlinear fan load. The inputto the proposed Fuzzy Logic Controller (FLC) is an 'aggregate' errorbetween the required and the actual rpm and its time derivatives. TheFLC is designed to approximate a bang-bang controller and itscoefficients are chosen as a tradeoff between short rise time, smallsteady-state errors, and control chattering. The FLC performance wascompared to that of a well-known design; namely a sliding modecontroller with a boundary layer. Although the FLC design procedure iseasier, the performance of the two controllers are quite similar.Unfortunately, the FLC design was not robust enough to counter theeffect of large time delays introduced by the power electronicsinterface.

Marwan Bikdash - One of the best experts on this subject based on the ideXlab platform.

  • Comparison of Quasi Bang-Bang and Sliding Mode Controls for a DC Shunt Motor with Time Delay
    Nonlinear Dynamics, 2000
    Co-Authors: Marwan Bikdash, V. Kunchithapadam, Kaushik Ragunathan, Abdollah Homaifar
    Abstract:

    We propose a hybrid fuzzy-linear controller for a nonlinearterminal voltage-controlled DC Motor. The nonlinearity includes theeffect of magnetization saturation and a nonlinear fan load. The inputto the proposed Fuzzy Logic Controller (FLC) is an 'aggregate' errorbetween the required and the actual rpm and its time derivatives. TheFLC is designed to approximate a bang-bang controller and itscoefficients are chosen as a tradeoff between short rise time, smallsteady-state errors, and control chattering. The FLC performance wascompared to that of a well-known design; namely a sliding modecontroller with a boundary layer. Although the FLC design procedure iseasier, the performance of the two controllers are quite similar.Unfortunately, the FLC design was not robust enough to counter theeffect of large time delays introduced by the power electronicsinterface.

  • Quasi bang-bang and sliding-mode controls for a DC Shunt Motor
    Proceedings of the 1999 American Control Conference (Cat. No. 99CH36251), 1999
    Co-Authors: V. Kunchithapadam, Marwan Bikdash, A. Hornaifar
    Abstract:

    We propose a hybrid fuzzy-linear controller for a nonlinear terminal voltage-controlled DC Motor. The nonlinearity includes the effect of magnetization saturation and a nonlinear fan load. The input to the proposed fuzzy logic controller (FLC) is an "aggregate" error between the required and the actual RPM and its time derivatives. The FLC is designed to approximate a bang-bang controller and its coefficients are chosen a trade-off between short rise time, small steady-state errors and control chattering. The FLC performance was compared to that of a well known design, namely a sliding mode controller with a boundary layer. Although the FLC design procedure is easier, the performance of the two controllers are quite similar.

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

  • Comparison of Quasi Bang-Bang and Sliding Mode Controls for a DC Shunt Motor with Time Delay
    Nonlinear Dynamics, 2000
    Co-Authors: Marwan Bikdash, V. Kunchithapadam, Kaushik Ragunathan, Abdollah Homaifar
    Abstract:

    We propose a hybrid fuzzy-linear controller for a nonlinearterminal voltage-controlled DC Motor. The nonlinearity includes theeffect of magnetization saturation and a nonlinear fan load. The inputto the proposed Fuzzy Logic Controller (FLC) is an 'aggregate' errorbetween the required and the actual rpm and its time derivatives. TheFLC is designed to approximate a bang-bang controller and itscoefficients are chosen as a tradeoff between short rise time, smallsteady-state errors, and control chattering. The FLC performance wascompared to that of a well-known design; namely a sliding modecontroller with a boundary layer. Although the FLC design procedure iseasier, the performance of the two controllers are quite similar.Unfortunately, the FLC design was not robust enough to counter theeffect of large time delays introduced by the power electronicsinterface.

  • Quasi bang-bang and sliding-mode controls for a DC Shunt Motor
    Proceedings of the 1999 American Control Conference (Cat. No. 99CH36251), 1999
    Co-Authors: V. Kunchithapadam, Marwan Bikdash, A. Hornaifar
    Abstract:

    We propose a hybrid fuzzy-linear controller for a nonlinear terminal voltage-controlled DC Motor. The nonlinearity includes the effect of magnetization saturation and a nonlinear fan load. The input to the proposed fuzzy logic controller (FLC) is an "aggregate" error between the required and the actual RPM and its time derivatives. The FLC is designed to approximate a bang-bang controller and its coefficients are chosen a trade-off between short rise time, small steady-state errors and control chattering. The FLC performance was compared to that of a well known design, namely a sliding mode controller with a boundary layer. Although the FLC design procedure is easier, the performance of the two controllers are quite similar.

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

  • Comparison of Solar Based Closed Loop DC-DC Converter Using PID And ANN Control For Shunt Motor Drive
    International Journal of Parallel Emergent and Distributed Systems, 2019
    Co-Authors: S. Jayaprakash, R. Ramani, M. Kavitha, V. Senthil Nayagam
    Abstract:

    This paper explained details of Comparison of solar based closed loop DC -DC converter using PID and ANN Control for Shunt Motor drive. Solar panel output is given to full bridge converter, stepup transformer, full wave converter, ∏ filter and Shunt Motor drive are connected.Comparator compare the set value and the output signal of the Motor produce a signal, based on the signal, full wave conveter produce the voltage to run the Motor, Speed of Motor,Torque and Armature current,Rise time,Peak time, Settling time and Steady state error are measured and evaluated by experimental.A circuit operation and simulation designed for a 1000 RPM speed of Shunt Motor arrived and tested.

  • Comparison of solar based closed loop DC-DC converter using PID and fuzzy logic control for Shunt Motor drive
    2014 IEEE National Conference on Emerging Trends In New & Renewable Energy Sources And Energy Management (NCET NRES EM), 2014
    Co-Authors: S. Jayaprakash
    Abstract:

    This paper presents an comparison of solar based closed loop DC-DC Converter using PID and Fuzzy Logic Control for Shunt Motor drive. Solar panel is connected input side then two full bridge converter, step up transformer, PI filter and Shunt Motor drive are connected. Comparator compare the set value and the output signal of a Motor produce signal, based on a signal full wave converter produced the voltage due to that voltage run the Motor. The circuit with all the component parameters operates at zero-voltage switching which retains the high circuit efficiency. Speed of Motor, Torque and Armature current, Rise time, Peak time, Settling time and Steady state error are measured by experimental. A circuit operation and simulation designed for a 220v dc output arrived and tested.

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

  • Modeling and control of variable speed wind turbine using laboratory simulator
    Journal of Renewable and Sustainable Energy, 2015
    Co-Authors: R. S. Bajpai, Megha Goyal, Rajesh Gupta
    Abstract:

    An important challenge associated with wind power is the unpredictable nature of the wind. As wind power forecasting is usually based on the relationship between wind speeds and wind power, wind farm data is a critical prerequisite for wind speed prediction, meanwhile it plays an important role on the reliability and safety of the grids. For development of new controls, converter topologies, modulation methods, and maximum power extraction algorithms for wind energy conversion systems, the provision of a controlled test environment showing dynamic and steady state characteristics of wind turbines is desired. In this paper, a small scale wind turbine experimental laboratory model based on separately excited dc-Shunt Motor and permanent magnet synchronous generator (PMSG) is proposed, which reproduces the static and dynamic characteristics of the wind turbine without any wind environment. A programmable wind speed model is established that can satisfactorily simulate the spatial effect of the wind behavior,...

  • Design of simulator for modelling of wind turbine and transfer of maximum power using buck-boost converter
    International Journal of Renewable Energy Technology, 2011
    Co-Authors: R. S. Bajpai, Rajesh Gupta
    Abstract:

    A small wind turbine simulator based on a separately excited DC Motor-permanent magnet synchronous generator (PMSG) set has been proposed to evaluate the performance of the small wind turbine model. A DC Shunt Motor is used to produce varying aerodynamic power by varying field current with the help of an IGBT switch. The simulator is an equivalent gearless wind turbine model that fluctuate aerodynamic power directly with wind speed. Power developed from the generator is transferred to the load through a buck-boost converter. The converter controls the output voltage in respect of higher or lower input voltage. To achieve constant voltage and transfer maximum power across the load in respect of the wind variations, a controller is designed which ensure that the instantaneous power generated by the PMSG tracks the theoretical power calculated. The results are validated using PSCAD/EMTDC simulation studies.