一种智能柔性谐波补偿方法

An Intelligent Flexible Method for Harmonic Compensation

针对配电电网电压水平低和电能质量差的现状,以谐波补偿装置为对象,研究了其在三相四线制配电电网中的应用。以数字处理芯片(DSP)和微控制芯片为核心,在瞬时无功功率理论的基础上,详细分析了谐波电流检测方法,提出了基于空间矢量法的PWM脉冲产生方法。仿真研究结果表明,智能柔性方法能对电网谐波进行有效抑制,验证了设计方案的正确性和可行性。

Aiming at the current status of power distribution grid,e.g.,voltage fluctuation and poor power quality,with harmonic compensation device as the object,its application in three-phase four-wire power distribution grid has been researched.On the basis of instantaneous reactive power theory,the detection method of harmonic current is analyzed in detail;with digital processing chip and micro control chip as the kernel,and based on space vector technology the generation method of PWM pulse is proposed.The result of simulation research indicates that the intelligent flexible method effectively suppresses the harmonic on the grid and verifies the correctness and feasibility of the design strategy.