基于正负零序控制算法的高压断路器智能化控制技术研究  

Intelligent control technology of high voltage circuit breaker based on positive and negative zero sequence control algorithm

作　　者：尹相国 何昱 张冠育 张熀松 祁鹍 YIN Xiangguo;HE Yu;ZHANG Guanyu;ZHANG Huangsong;QI Kun(Guowang Ningxia Electric Power Co.,Ltd.,Yinchuan,Ningxia 750000,China;Nanjing Xieao Intelligent Control System Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]国网宁夏电力有限公司超高压公司,银川750000 [2]南京协澳智能控制系统有限公司,南京210000

出　　处：《自动化与仪器仪表》2025年第2期140-145,共6页Automation & Instrumentation

基　　金：宁夏电力有限公司科技项目《面向高压断路器多参量融合的智能感知与控制技术研究及应用》(5229CG230007)。

摘　　要：随着电力系统规模的不断扩大和电力电子设备的广泛应用,电网面临着日益严峻的电能质量问题,尤其是在三相四线制系统中,负载不平衡现象普遍存在,导致电压波动和电能效率降低。为了提高三相四线制电网在不平衡负载条件下的电能质量和系统稳定性,研究提出了一种基于正负零序控制算法的高压断路器智能化控制策略。引入了正负零序控制算法,通过独立控制三相电流的正序、负序和零序分量,以实现三序解耦。仿真和实验结果表明,正负零序控制算法实现了对三相直流母线电压均衡性的优化管理,三相电压值分别稳定在41 V、42 V和42 V,同时将电压波动限制在正负2.5%以内。该控制策略显著降低了系统的不平衡度,从6.57%降至0.83%,有效提升了系统的稳定性和电能质量。With the continuous expansion of the scale of power system and the wide application of power electronic equipment,the power grid is faced with increasingly severe power quality problems,especially in the three-phase four-wire system,the load im-balance phenomenon is widespread,resulting in voltage fluctuations and energy efficiency reduction.In order to improve the power quality and system stability of three-phase four-wire power system under unbalanced load conditions,an intelligent control strategy of high-voltage circuit breaker based on positive and negative zero sequence control algorithm is proposed.The positive and negative ze-ro sequence control algorithm is introduced to realize three-sequence decoupling by controlling the positive,negative and zero se-quence components of three-phase current independently.The simulation and experimental results show that the positive and negative zero sequence control algorithm can optimize the voltage balance management of the three-phase DC bus,and the three-phase voltage values are stabilized at 41 volts,42 volts and 42 volts respectively,while the voltage fluctuation is limited to plus or minus 2.5%.The control strategy significantly reduces the unbalance of the system from 6.57%to 0.83%,and effectively improves the stability and power quality of the system.

关 键 词：正负零序控制算法 高压断路器 不平衡负载 静止同步补偿器 三序解耦 

分 类 号：TM761[电气工程—电力系统及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]