The Experts below are selected from a list of 213 Experts worldwide ranked by ideXlab platform
Minsoo Jang - One of the best experts on this subject based on the ideXlab platform.
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Analysis and Control of a Single-Phase-Inverter–Zigzag-Transformer Hybrid Neutral-Current Suppressor in Three-Phase Four-Wire Systems
IEEE Transactions on Industrial Electronics, 2007Co-Authors: Sewan Choi, Minsoo JangAbstract:This paper presents analysis and control of a hybrid filter that can suppress neutral Harmonic Currents in three-phase four-wire systems not only with Harmonic voltage-Source loads but also with Harmonic Current-Source loads. The filter voltampere rating is significantly reduced compared to the conventional neutral-Current-suppressing methods. The rectifier part of the neutral Harmonic suppressor has been removed by controlling the dc capacitor voltage. The experimental results on a 50-kVA prototype validate the proposed control approach.
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A single phase inverter-zigzag transformer hybrid filter to suppress neutral Harmonic Currents in three-phase four-wire systems
2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551), 2004Co-Authors: Sewan Choi, Minsoo JangAbstract:This paper proposes a new hybrid filter to suppress neutral Harmonic Currents in three-phase four-wire systems. The compensation characteristics illustrate that the proposed scheme works well not only with Harmonic voltage-Source loads but also with Harmonic Current-Source loads. Under unbalanced loading, the proposed filter eliminates only Harmonics in the neutral Current while it does not affect the fundamental. The VA rating of the inverter is significantly reduced compared to the conventional one. The experimental results on a prototype validate the proposed control approach.
Sewan Choi - One of the best experts on this subject based on the ideXlab platform.
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Analysis and Control of a Single-Phase-Inverter–Zigzag-Transformer Hybrid Neutral-Current Suppressor in Three-Phase Four-Wire Systems
IEEE Transactions on Industrial Electronics, 2007Co-Authors: Sewan Choi, Minsoo JangAbstract:This paper presents analysis and control of a hybrid filter that can suppress neutral Harmonic Currents in three-phase four-wire systems not only with Harmonic voltage-Source loads but also with Harmonic Current-Source loads. The filter voltampere rating is significantly reduced compared to the conventional neutral-Current-suppressing methods. The rectifier part of the neutral Harmonic suppressor has been removed by controlling the dc capacitor voltage. The experimental results on a 50-kVA prototype validate the proposed control approach.
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A single phase inverter-zigzag transformer hybrid filter to suppress neutral Harmonic Currents in three-phase four-wire systems
2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551), 2004Co-Authors: Sewan Choi, Minsoo JangAbstract:This paper proposes a new hybrid filter to suppress neutral Harmonic Currents in three-phase four-wire systems. The compensation characteristics illustrate that the proposed scheme works well not only with Harmonic voltage-Source loads but also with Harmonic Current-Source loads. Under unbalanced loading, the proposed filter eliminates only Harmonics in the neutral Current while it does not affect the fundamental. The VA rating of the inverter is significantly reduced compared to the conventional one. The experimental results on a prototype validate the proposed control approach.
Patricio Salmerón - One of the best experts on this subject based on the ideXlab platform.
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Comparative analysis of compensation strategies for series APF based on the electric power dual formulation
2017 11th IEEE International Conference on Compatibility Power Electronics and Power Engineering (CPE-POWERENG), 2017Co-Authors: Salvador Pérez Litrán, Patricio Salmerón, Jaime Prieto, Alejandro Pérez VallésAbstract:Different electrical power formulations have been developed to improve the quality of electrical power. These developments have served to establish different strategies for the control of active power filters (APF). However, most strategies have been applied to APF of parallel connection. These type of compensators are only effective in compensating loads of the Harmonic Current Source type (HCS). In the case of loads called Harmonic voltage Source (HVS) a series APF is required. The strategies proposed for parallel APFs must be reformulated so that they can be applied to the series APF topologies. In this paper, different compensation strategies based on the dual electrical power formulations are proposed for APF of series connection. A simulation platform designed for this purpose has allowed the evaluation of each strategy under different load conditions. The results obtained let to establish a comparative analysis for different load condition.
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Reference Voltage Optimization of a Hybrid Filter for Nonlinear Load Compensation
IEEE Transactions on Industrial Electronics, 2014Co-Authors: Salvador P. Litrán, Patricio SalmerónAbstract:The Harmonic problem in electric power systems, far from improving, has been increasing in recent years. To mitigate this problem, active filters have been proposed; however, they do not present a complete solution for any type of load and system. This paper develops a control strategy for a compensator based on a hybrid filter topology. This topology is formed by an active power filter of series connection and a passive filter of parallel connection. The proposed strategy is based on minimizing the root-mean-square value of the voltage at the point of common coupling so that the Source transfers the power demanded by the load. Thus, the determination of the reference signal is posed as a constrained optimization problem. The strategy was proposed for four- and three-wire systems, and it allowed the compensation of Current Harmonics and reactive power of Harmonic Current Source and Harmonic voltage Source loads. An experimental prototype was developed, which has allowed verification of their performance.
Babak Parkhideh - One of the best experts on this subject based on the ideXlab platform.
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IAS - An Universal Active Power Filter Controller System
2009 IEEE Industry Applications Society Annual Meeting, 2009Co-Authors: Subhashish Bhattacharya, Hesameddin Mirzaee Teshnizi, Babak ParkhidehAbstract:An universal active power filter controller system is proposed that adapts itself to both Harmonic Current Source type loads as well as Harmonic voltage Source type loads is presented in this paper. The system level Harmonic filtering application issues of a multiple and clustered Harmonic producing load site, such as at an industrial load site or at a distribution substation, are addressed. Harmonic filtering solution for such sites is especially complicated because the overall site load characteristics can change from a Harmonic Current Source type to a Harmonic voltage Source type load, depending on the operating point of the various individual loads. The proposed Hybrid Series Active Filter (HSAF) solution provides Harmonic filtering for Harmonic Current Source type load characteristics, and degrades controllably to a 'pure' Series Active Filter (SAF) to provide Harmonic filtering for Harmonic voltage Source type load characteristics. Both the HSAF and SAF are controlled by Synchronous Reference Frame (SRF) controller. Field test results validate the adaptability and effectiveness of the proposed HSAF/SAF system for a 480V, 750kVA multiple and clustered load site. Index Terms— Hybrid Series Active Filter (HSAF), Series Active Filter (SAF), Harmonic Filtering, Synchronous Reference Frame (SRF) controller, clustered Harmonic loads
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An Universal Active Power Filter Controller System
2009 IEEE Industry Applications Society Annual Meeting, 2009Co-Authors: Subhashish Bhattacharya, Hesameddin Mirzaee Teshnizi, Babak ParkhidehAbstract:An universal active power filter controller system is proposed that adapts itself to both Harmonic Current Source type loads as well as Harmonic voltage Source type loads is presented in this paper. The system level Harmonic filtering application issues of a multiple and clustered Harmonic producing load site, such as at an industrial load site or at a distribution substation, are addressed. Harmonic filtering solution for such sites is especially complicated because the overall site load characteristics can change from a Harmonic Current Source type to a Harmonic voltage Source type load, depending on the operating point of the various individual loads. The proposed hybrid series active filter (HSAF) solution provides Harmonic filtering for Harmonic Current Source type load characteristics, and degrades controllably to a 'pure' series active filter (SAF) to provide Harmonic filtering for Harmonic voltage Source type load characteristics. Both the HSAF and SAF are controlled by synchronous reference frame (SRF) controller. Field test results validate the adaptability and effectiveness of the proposed HSAF/SAF system for a 480 V, 750 kVA multiple and clustered load site.
Yue Wang - One of the best experts on this subject based on the ideXlab platform.
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a fast transient repetitive control strategy for programmable Harmonic Current Source
Journal of Power Electronics, 2017Co-Authors: Mingfeng Chen, Huajia Wang, Yue WangAbstract:The repetitive control (RC) strategy is widely used in AC power systems because of its high performance in tracking period signal and suppressing steady-state error. However, the dynamic response of RC is determined by the fundamental period delay T 0 existing in the internal model. In the Current study, a (nk ± i)-order Harmonic RC structure is proposed to improve dynamic performance. The proposed structure has less data memory and can improve the tracking speed by n/2 times. T 0 proves the effectiveness of the (nk ± i)-order RC strategy. The simulation and experiments of (6k ± 1)-order and (4k ± 1)-order RC strategy used in the voltage Source inverter is conducted in this study to control the Harmonic Current Source, which shows the validity and advantages of the proposed structure.
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Development of a resonance-free power quality controller for middle voltage distribution system
2008 IEEE Power Electronics Specialists Conference, 2008Co-Authors: Yue Wang, Leqiang Zhang, Ninghuan Su, Ming Zheng, Zhaoan WangAbstract:In this paper, a resonance-free power quality controller (RFPQC) for middle voltage distribution system is described. The RFPQC system discussed in paper exhibits the following advantages: (a) The RFPQC has good filtering performance to eliminate most of the Harmonic Current generated by nonlinear load in characteristic frequency; (b) The RFPQC can damp parallel resonance between PF and grid impedance driving by load Current; (c) The RFPQC also can damp series resonance between PF and grid impedance driving by grid voltage; (d) The Harmonic Current Source in RFPQC has very small power rating comparing with nonlinear load. In this paper, the topology and control strategy has been analyzed in detail. The simulation and experiment result certify the RFPQC system has propose performance.
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A new hybrid parallel active filter
IEEE 34th Annual Conference on Power Electronics Specialist 2003. PESC '03., 2003Co-Authors: Yue Wang, Zhaoan Wang, Jun Yang, Yong Duan, Zhiping FuAbstract:This paper presents a new parallel hybrid active filter topology which can reduce the VA rating of the active power filter (APF) greatly. Based on the conventional topology of the hybrid parallel filter, the basic idea of the new topology is to add a small inductor in parallel with APF controlled as a Harmonic Current Source, in order to force the fundamental reactive Current to flow through the additional inductor, instead of flowing through APF. Three different control methods and a formula estimating VA rating of APF are proposed for the new topology. Experimental results obtained from a 30 kVA prototype exhibit excellent performance of the new hybrid filter. The required rating of the active filter is approximately only 1% of the Harmonic-producing load.
