摘要
电力系统仿真是研究特高压直流输电技术特性和功能的重要方式。为了实现±800kV特高压直流输电工程二次设备的集成联调检测以及研究交直流系统的相互影响,本文在RTDS实时数字仿真平台上,通过RTDS的各类输入输出板卡与直流控制保护装置、换流阀阀控设备以及测量接口屏等二次设备相连接,构成控制闭环仿真系统。针对RTDS硬件平台升级和换流阀阀控系统接口特点,详细介绍了仿真平台和各类二次设备的接口形式,并采用RTDS的PB5处理器背板光纤互联以增大rack的节点计算数目。在RTDS闭环仿真平台上,以直流控制保护装置的附加控制功能为例,开展了直流功率调制试验,仿真结果验证了直流控制保护装置频率控制功能的正确性。
Power system simulation is an important way to study UHVDC transmission technology features and functions. In order to test the integrated secondary equipment for ±800kV UHVDC transmission project and study the interaction of AC/DC system,the RTDS real-time digital simulation platform is presented in this paper. By connecting all kinds of RTDS input/output interface card with DC control and protection device,converter valve control equipment and secondary equipment such as measuring interface screen,the control closed-loop simulation system is constituted. In view of RTDS hardware platform upgrade and interface characteristics of the converter valve control system,the interface mode between the simulation platform and various types of secondary equipment are introduced in detail,and the fiber enhanced backplane of PB5 processor is used to increase node calculate numbers of the RTDS rack. Based on RTDS closed-loop simulation platform,taking the additional control function of DC control and protection device for example,the DC power modulation test is carried out. The simulation results verify the validity of frequency control function for the DC control and protection device.
出处
《湖南电力》
2017年第3期11-15,共5页
Hunan Electric Power
基金
国网湖南省电力公司科技项目(5216A514003H)
