云广±800kV直流输电工程系统试验(英文)

The System Tests of Yunnan-Guangdong ±800 kV DC Transmission Project

直流输电工程的非现场和现场系统试验是非常复杂的技术工作,对于世界上第一个±800kV直流输电工程尤其如此。云广直流输电工程输送容量5000MW,额定直流电压±800kV。该工程两端换流站均为双极配置,每极采用双12脉冲阀组串联结构。文章介绍了云广特高压直流输电工程的系统试验,包括非现场系统试验,即控制保护系统功能试验和动态性能试验,以及现场调试系统试验,给出了试验的目的、范围、试验过程和试验结果;讨论了实时数字仿真系统在非现场系统试验中的应用;分析了该工程非现场系统试验和现场系统试验之间的内在关系。

The off-site and on-site system tests of a DC transmission project are complex tasks, especially for the first ±800 kV DC transmission project in the world. The power transmission capacity of Yunnan-Guangdong UHVDC transmission project is 5 000 MW with a rated DC voltage of ±800 kV. The two terminals of the UHVDC transmission project are configured as bipoles with two 12-pulse valve groups connected in series for each pole. This paper describes the system tests of Yunnan-Guangdong UHVDC project, including its off-site system tests which include the functional performance tests and the dynamic performance tests of control and protection system, as well as its on-site system tests with the test objectives, test scopes, test procedures and test results. The application of the digital real time simulation tools in the off-site system tests is discussed, and the relationship between the off-site and the on-site system tests of the project is analyzed.