Indian Journal of Science and Technology
Year: 2015, Volume: 8, Issue: 21, Pages: 1-7
M. Preethi Pauline Mary1* and V. Sivachidambaranathan2
1 Sathyabama University, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai – 600 119, Tamil Nadu, India; [email protected]
2 Department of Electrical and Electronics, Sathyabama University, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai – 600 119, Tamil Nadu, India; [email protected]
This paper presents the design of Synchronous Reference Frame theory (SRF) based on time domain reference signal elimination technique that can extract reference compensated current for 3ф shunt active power filter. A three-phase Voltage Source Converter (VSC) of this system eliminates harmonics current, balances loads and compensates reactive power for power for Power Factor Correction (PFC) or Zero Voltage Regulation (ZVR) at AC main. Fuzzy controller regulates the DC bus voltage at the time of load variation, also provides accurate reference current extraction, frequency independent operation and relatively fast transient response. Hysteresis current controller has current limiting capacity to limit the current error within fixed tolerance band. The grid interfaced solar PV power generating system is tested for PFC and ZVR mode of operation along with harmonics current elimination and load balancing of linear and non-linear loads. Simulation results are presented for the fundamental frequency of 50 Hz.
Keywords: Fuzzy Logic Controller, Hysteresis Current Controller, 4-Leg VSI, SRF Theory
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