摘要
针对传统容错控制技术诊断故障准确率低、不能有效维持电力系统运行的稳定性,提出基于解耦调制的电力系统稳定性容错控制技术。从传动模块和电机模块2个方面搭建系统运行模型,并在该模型下设计安装解耦容错控制器。收集电力系统的实时运行信号数据,利用故障诊断方法来判断电力系统是否存在故障问题。将故障诊断结果作为容错控制的启动信号,当诊断结果为存在故障时,利用解耦调制方法处理电力系统故障电机,从而实现电力系统的稳定性容错控制。实验证明:该方法电力系统故障诊断准确率较传统方法高,且应用设计的容错控制技术后,电力系统的电压、电流与功率的波动范围均有所减小,该技术可以有效保证电力系统的稳定运行。
In view of the low fault diagnosis accuracy of the traditional fault-tolerant control technology and the inability to effectively maintain the stability of power system operation,a fault-tolerant control technology for power system stability based on decoupling modulation is proposed in this study. The system operation model is built from two aspects of the transmission module and the motor module,and the decoupling fault-tolerant controller is designed and installed under the model. The realtime operation signal data of the power system is collected and the fault diagnosis method is used to determine whether a fault occurs to the power system. The fault diagnosis result is taken as the starting signal of the fault-tolerant control and when a fault is diagnosed,the fault motor of the power system is processed by decoupling modulation method,so as to realize fault-tolerant control of power system stability. The experimental results show that the fault diagnosis accuracy of the proposed method is higher than that of the traditional method,and the voltage,current and power fluctuation range of the power system is reduced after the designed fault-tolerant control technology is applied,which can effectively ensure the stable operation of the power system.
作者
尹建林
谢晨
何俊伟
朗晓旭
盖晓平
YIN Jianlin;XIE Chen;HE Junwei;LANG Xiaoxu;GAI Xiaoping(State Grid Gansu Electric Power Company,Lanzhou 730030,Gansu,China;State Grid Information and Communication Industry Group Co.,Ltd.,Lanzhou 730030,Gansu,China;Beijing Guodiandtong Network Technology Co.,Ltd.,Beijing 100000,China)
出处
《电网与清洁能源》
2020年第11期111-117,共7页
Power System and Clean Energy
基金
甘肃省电力公司科信部项目(kj2016-026-Ⅱ)。
关键词
解耦调制
电力系统
系统稳定性
容错控制
decoupling modulation
the power system
system stability
fault-tolerant control
