高压直流输电系统控制器数字仿真实现方法

针对交直流系统稳定性研究的目的，将实际直流控制系统及换流过程进行简化、等效，构造出模块化、逻辑式直流控制器仿真模型，并配合一定的换流过程模拟方法来仿真实际系统的动态特性。该模型基本涵盖实际控制器的主要结构以及影响交直流系统动态特性的基本环节，具有结构明晰、可组合、易扩展、参数调试方便等多方面的优点。应用数字仿真软件NETOMAC实践该模型，在各种运行条件下均表现出与实际系统相吻合的动态特性。

Method of Implementating Digital Simulation for HVDC Controller

For the purpose of studying the stability of AC/DC systems, this paper simplifies the actual HVDC control system and the conversion process,constructs a module and logic simulation model for DC controllers, and simulates the operation of actual systems with some simulating methods for the conversion process. The model includes main structures of the actual controller and basic portions that affect the dynamic performance of AC/DC systems. It has clear structures and is easy to be assembled and extended, also convenient for parameter debugging. Implementated with the digital simulation software NETOMAC, the model presents dynamic performance tallying with that of actual systems under many operation conditions.