【摘要】 基于注入式混合有源电力滤波器(injection type hybrid active power filter,IHAPF)因存在基波谐振支路,使得有源部分不承受基波电压,适用于高电压、大容量配电网谐波治理的特点,对注入式混合有源电力滤波器基本结构和工作原理进行分析,论述注入式混合有源电力滤波器采用直接功率控制的可行性;根据瞬时功率理论,将检测出来的谐波功率作为参考信号,使滤波器实际输出的谐波功率跟踪参考功率,从而达到谐波治理的效果。对系统参数进行设计,以保证系统安全可靠运行。研究结果表明:该方法省去了谐波电流检测和复杂坐标变换,提高系统动态控制性能;所采用的直接功率控制在IHAPF谐波补偿中是可行的。更多还原

【Abstract】 Injection type hybrid active power filter is applied in high-voltage and high-capacity power grid harmonic control because its active part is not exposed to the fundamental voltage by the fundamental resonance branch. The basic structure and working principle of injection hybrid active power filter(IHAPF) were analyzed and the feasibility of using direct power control for injection type hybrid active power filter was discussed. According to the instantaneous power theory, harmonic power was detected as the reference signal and the actual harmonic power of filter output would track the reference power to restrain harmonics. To ensure the system is safe and reliable in operation, the system parameters were designed. The results show that the method does not need to detect the harmonic current or transform the complex coordinate, and that the system dynamic control performance is improved. The direct power control is practical in IHAPF harmonic compensation.更多还原