中国电机工程学报2024，Vol.44Issue(9)：3619-3631,中插24,14.DOI:10.13334/j.0258-8013.pcsee.223155
可控电流源型换流器功率解耦控制策略
Power Decoupling Control Strategy of Controllable Current Source Converter
摘要
Abstract
The controllable current source converter(CSC)is considered to be an important research point of high voltage direct current(HVDC)technology.The development of reverse blocking integrated gate commutation thyristor(IGCT)promotes CSC application feasibly.However,due to its current source characteristics,most of the researches mainly adopt the constant DC current strategy,while the research on power control strategy under constant DC voltage is less,seriously restricting its engineering development.In this paper,the mathematical model of CSC is established,and the influence variables of active and reactive power are obtained.Then,the d-q axis component of the capacitor voltage is decoupled,and the inner loop and outer loop control strategies are proposed.After that,the power operation range of the CSC is analyzed with the constraints of DC voltage and modulation ratio.Finally,a hybrid transmission system based on conventional LCC and CSC is built,and the proposed control strategy is analyzed.The research indicates that the proposed power control strategy can decouple active power and reactive power,as well as obtain excellent power regulation effectiveness.关键词
高压直流输电系统/电流源型换流器/功率控制/解耦控制Key words
HVDC system/current source converter(CSC)/power control/decoupling control分类
信息技术与安全科学引用本文复制引用
陈龙龙,魏晓光,张闻闻,汤广福,崔翔,高冲..可控电流源型换流器功率解耦控制策略[J].中国电机工程学报,2024,44(9):3619-3631,中插24,14.基金项目
国家电网有限公司科技项目(基于可控关断的电流源型换流器关键技术研究与样机研究)(5500202058059A0000). Science and Technology Project of State Grid Corporation of China(Research and Development of Controllable Switching Device Based Current Source Converter)(5500202058059A0000). （基于可控关断的电流源型换流器关键技术研究与样机研究）
