A novel approach of reference current generation for power quality improvement in three-phase, three-wire distribution system using DSTATCOM

This paper presents a novel approach based on an improved instantaneous active and reactive current component theory for generating reference currents for distribution static compensator (DSTATCOM). Three-phase reference current waveforms generated by proposed scheme are tracked by the three-phase voltage source converter in a hysteresis band control scheme. The performance of the DSTATCOM using the proposed control strategy has been evaluated under various source and load conditions. The performance of the proposed control strategy has been evaluated in terms of load balancing, reactive power compensation, compensator rating and harmonic mitigation. A three-phase, three-wire distribution system supplying star connected linear as well as non-linear unbalanced load is considered for simulation study. The detailed simulation results using MATLAB/SIMULINK software are presented to support the feasibility of proposed control strategy.

[1]  Gil D. Marques,et al.  An instantaneous active and reactive current component method for active filters , 2000 .

[2]  Hirofumi Akagi,et al.  Instantaneous Reactive Power Compensators Comprising Switching Devices without Energy Storage Components , 1984, IEEE Transactions on Industry Applications.

[3]  Antonio Moreno-Munoz,et al.  Power quality : mitigation technologies in a distributed environment , 2007 .

[4]  Mauricio Aredes,et al.  New concepts of instantaneous active and reactive powers in electrical systems with generic loads , 1993 .

[5]  Hirofumi Akagi,et al.  Control Strategy of Active Power Filters Using Multiple Voltage-Source PWM Converters , 1986, IEEE Transactions on Industry Applications.

[6]  Alessandro Ferrero,et al.  A new approach to the definition of power components in three-phase systems under nonsinusoidal conditions , 1991 .

[7]  Yuan-Yih Hsu,et al.  A Minimal Harmonic Controller for a STATCOM , 2008, IEEE Transactions on Industrial Electronics.

[8]  J. K. Phipps,et al.  Power quality and harmonic distortion on distribution systems , 1991, [Proceedings] 1991 Rural Electric Power Conference. Papers presented at the 35th Annual Conference.

[9]  Fang Zheng Peng,et al.  Reactive power and harmonic compensation based on the generalized instantaneous reactive power theory for three-phase power systems , 1996 .

[10]  Arindam Ghosh,et al.  A new approach to load balancing and power factor correction in power distribution system , 2000 .

[11]  Jacques L. Willems,et al.  A new interpretation of the Akagi-Nabae power components for nonsinusoidal three-phase situations , 1992 .