摘要
为了提高直流电网运行控制能力,设计了区域互联多电压等级直流电网运行控制系统。分析电网的单级接线和双极接线的运行状态,通过搭建换流器和逆变器完成系统硬件设计。在软件设计中,设定功率调制功能、定电流控制功能、定电压控制功能,通过确定两个地区间的交流功率变化实现功率调节,根据定电流控制原理得到传感器输出数值,以此实现定电流控制,结合直流输入功率实现定电压控制,达到直流电网运行控制的目标。实验结果表明,设计系统的控制结果与标准要求吻合度在95%以上,具有极强的控制能力。
In order to improve the operation control capability of DC power grid,the operation control system of regional interconnected multi⁃voltage DC power grid is designed.Analyze the operation status of single⁃stage connection and bipolar connection of power grid,and complete the system hardware design by building converter and inverter.In the software design,set the power modulation function,constant current control function and constant voltage control function,realize the power regulation by determining the AC power change between the two regions,obtain the sensor output value according to the constant current control principle,so as to achieve the constant current control,combine the DC input power to achieve the constant voltage control,and achieve the goal of DC power grid operation control.The experimental results show that the control results of the designed system agree with the standard requirements by more than 95%,and it has strong control ability.
作者
孙洁
何丽娟
贺兴安
袁昊
SUN Jie;HE Lijuan;HE Xing’an;YUAN Hao(State Grid Yinchuan Power Supply Company,Yinchuan 750000,China)
出处
《电子设计工程》
2024年第6期113-117,共5页
Electronic Design Engineering
关键词
区域互联
多电压等级
直流电网
电网运行
运行控制
控制系统
regional interconnection
multi⁃voltage level
DC power grid
power grid operation
operation control
control system
