注入式混合有源电力滤波器的注入支路设计

注入支路对注入式混合有源电力滤波器的滤波效果有着极其重要的影响,目前有源电力滤波器在这方面的探讨很少。在分析注入式混合有源电力滤波器基本工作原理的基础上,结合已有的工程经验,从基波谐振支路谐波分压和注入支路的分频分流2个方面探讨了注入支路各参数对整个系统性能的影响。以此为基础,综合考虑系统的谐波注入能力以及装置的安全可靠性,提出了注入支路参数设计的一般准则。实例设计表明,与根据经验设计的参数相比,根据该原则设计的注入支路能够更有利于装置的安全可靠运行,并且具有很好的谐波注入能力。

Injection Branch Design of Injection Type Hybrid Active Power Filter

The injection branch parameters of the serial resonant injection hybrid active power filter (SRIHAPF) have a great influence on the filtering effect, which few papers focused on. This paper investigates the influences from two aspects: branch harmonic voltage of fundamental resonance circuit and branch harmonic current of injection branch. Considering the harmonic current compensation and the device reliability, a common principle of the parameter designing is proposed. The computation results show that the SRIHAPF designed by the common principle, with a high engineering application value, can meet the requirements of harmonic elimination better than the one designed just by experience.