Control Scheme of Spread Frequency Band for High Power Impedance Measuring Converter with Chirp Signal Injection
作者机构：College of Electrical EngineeringSichuan UniversityChengdu 610065China
出 版 物：《CSEE Journal of Power and Energy Systems》 (中国电机工程学会电力与能源系统学报（英文）)
年 卷 期：2024年第10卷第6期
页 面：2411-2422页
核心收录：
学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学]
主 题：High-power impedance measurement device over-modulation technique smooth transition strategy spread frequency band
摘 要：Impedance measurement is an effective solution for evaluating stability of a power system with high penetration of renewable *** this paper,the impedance measurement is achieved by a typical high-power impedance measuring converter(HPIM-converter)with chirp signal *** modulation saturation phenomenon of the HPIM-converter is revealed,and the frequency sweep boundary is analyzed in *** expand the rated frequency range of the HPIM-converter,a spread frequency band control scheme based on an over-modulation technique is proposed in this *** proposed control method enlarges the rated frequency band and can inject a disturbance voltage into the system under test with consistent amplitude in the rated frequency ***,a smooth transition strategy between linear modulation mode and over-modulation mode is proposed for suppressing signal ***,the effectiveness of the proposed method is verified by simulation tests.
维普期刊数据库