电力系统动态电压的单调控制特征分析  

Analysis of Monotonic Control Characteristics of Dynamic Voltage in Power System

作　　者：刘捷 李文建 靳一奇 赵亚飞 LIU Jie;LI Wenjian;JIN Yiqi;ZHAO Yafei(Zhengzhou Power Supply Company of State Grid,Zhengzhou 450000,China;State Grid Henan Energy Internet Electric Power Design Institute Co.,Ltd.,Zhengzhou 450000,China)

机构地区：[1]国网郑州供电公司,河南郑州450000 [2]国网河南能源互联网电力设计院有限公司,河南郑州450000

出　　处：《通信电源技术》2022年第24期17-19,25,共4页Telecom Power Technology

摘　　要：分析电力系统动态电压的单调控制特征。以某高压直流电力系统为研究对象,利用微分理论分析低压减载过程中电力系统动态电压的变化情况,论证低压减载与电力系统动态电压的单调性关系。不同低压减载比率下电力系统动态电压的单调控制特性表现不同,单调控制特征与低压减载比率参数有直接关系。在低压减载过程中,动态电压单调控制特征为:当电力系统低压满减后,动态负荷电压均呈现下降单调特征,随着低压减载比率的增加,动态负荷电压单调幅度越大,电压越趋于稳定。在实际工程应用中,可以通过提高低压减载比率控制电力系统动态电压控制分量间的单调关系,以此优化电力系统动态电压单调控制效果。Analyze the monotonic control characteristics of dynamic voltage in power system.Taking a high voltage DC power system as the research object,the differential theory was used to analyze the dynamic voltage variation of the power system in the process of low voltage load reduction,and the monotonic relationship between the low voltage load reduction and the dynamic voltage of the power system was demonstrated.The monotonic control characteristics of dynamic voltage of power system are different under different low-voltage load reduction ratio.The monotonic control characteristics are directly related to the parameters of low-voltage load reduction ratio.The monotonic control characteristics of dynamic voltage in the low-voltage load reduction process are as follows,with the increase of the low-voltage load reduction ratio,the greater the monotonic range of the dynamic load voltage,the more stable the voltage will be.In practical engineering applications,the monotonic relationship between the dynamic voltage control components of the power system can be controlled by increasing the low-voltage load reduction ratio.To optimize the monotonic control effect of dynamic voltage in power system.

关 键 词：电力系统 单调控制特征 高压直流 微分理论 低压减载比率 

分 类 号：TM712[电气工程—电力系统及自动化]