Application of instantaneous reactive power theory in power quality control of distribution network

作者：Wu, Xiao-Mei^*; Li, Song-Dong; Wen, Fu-Shuan

来源：Power System Protection and Control, 2009, 37(10): 79-82.

• Active power Filter
• Control strategies
• Distribution circuits
• Distribution systems
• Electronic instruments
• Harmonics and power qualities
• Instantaneous reactive power theory
• Shunt active power filters

With the increment of using power electronic instruments, the harmonic pollution in power system becomes more and more serious. Active power filter is considered as an effective appliance to improve harmonics and power quality. This paper proposes a control strategy to improve the power quality of distribution circuits by using shunt active power filter. First, in a three-phase four-line distribution system, the compensating principle is described. Next, the ip - iq method in instantaneous reactive power theory is used to detect the harmonic currents. Finally, the corrected triangular pulse width modulation is used to control the compensated currents. By using Matlab as the simulation tool, simulation of a practical case shows the efficiency of the proposed control strategy.

• 出版日期2009-5-16
• 单位华南理工大学