基于详细控制保护模型的黑河直流系统EMTDC仿真

基于完全自主开发的等价实时仿真平台,对黑河背靠背直流工程现场控制保护功能进行了系统仿真。该系统仿真中控制原理模型与现场工程完全相同,通过50%电流阶跃响应41ms结果表明控制性能满足规范要求;保护原理模型完全采用现场工程逻辑和配置,通过阀丢脉冲故障验证了换相失败保护作为后备保护600ms动作的准确性。该软件系统为黑河直流工程设计和事故分析提供了有效工具。

EMTDC Simulation of Heihe HVDC System Based on Detailed Control and Protection Model

The field control and protection function of Heihe back-to-back HVDC system is simulated based on the fully self-developed equivalent real-time simulation platform. The control principle model is the same program code as the on-site project. The step response test of 50% current quantity is implemented here. The 41 ms of response time is able to meet the requirement for the reliable operation of HVDC link. The protection principle model adopts the logic and configuration as the field does. The firing pulse missing fault is applied to verify that the commutation failure protection takes action after 600 ms. The simulation software offers a convenient and effective tool for the project design and fault analysis of Heihe HVDC system.