CAJ | 학술논문

对差异化级联式可控用电品质扰动发生装置注入电路参数选择时的相关问题进行了理论及仿真分析。差异化级联式拓扑包括三个模块：基频模块,高频模块和整流模块。理论分析结果表明：在采用差异化级联式拓扑设计时,基频连接电感的大小将会影响到基频模块的输出调节精度、高频模块的承压及电流跟踪性能,并且会影响高频模块的内部谐波环流量从而影响谐波电流输出量;高频连接电感的选择会影响高频模块的谐波输出。此外,为了降低高频模块的承压,可在高频模块注入电路中采取电容和电感串联调谐的方式。但是该方法在一定程度上将会影响基频模块的基波电流输出量。仿真分析结果证明了理论分析的正确性,并且为装置注入电路参数的选取及下一步装置控制方法的设计提供了参考依据。
대차이화급련식가공용전품질우동발생장치주입전로삼수선택시적상관문제진행료이론급방진분석。차이화급련식탁복포괄삼개모괴：기빈모괴,고빈모괴화정류모괴。이론분석결과표명：재채용차이화급련식탁복설계시,기빈련접전감적대소장회영향도기빈모괴적수출조절정도、고빈모괴적승압급전류근종성능,병차회영향고빈모괴적내부해파배류량종이영향해파전류수출량;고빈련접전감적선택회영향고빈모괴적해파수출。차외,위료강저고빈모괴적승압,가재고빈모괴주입전로중채취전용화전감천련조해적방식。단시해방법재일정정도상장회영향기빈모괴적기파전류수출량。방진분석결과증명료이론분석적정학성,병차위장치주입전로삼수적선취급하일보장치공제방법적설계제공료삼고의거。
Theoretical and simulated analysis on the injection circuit parameters of the controllable custom power quality disturbance-generator which is designed as differentiation cascade type has been done. The topology has three modules： fundamental-frequency module, high-frequency module and rectifier module. The theoretical analysis results show that the regulation precision of fundamental-frequency module’s output, the voltage level of the high-frequency module, the current tracking performance and the harmonic current circumfluence in the high frequency module will be influenced by the fundamental-frequency module’s connected inductor. The harmonic current output of the high-frequency module will be influenced by the high-frequency module’s connected inductor. Furthermore, taking capacitors in series with the inductors in the injection circuit of the high-frequency module is an effective method to reduce the voltage level of the high-frequency module. However this method will influence the output of the fundamental frequency current from the fundamental-frequency module. The simulation results show the correctness of the theoretical analysis and provide a reference for parameter selection of the injection circuit and design of the device’s control methods.