一种VSC-HVDC控制系统的PI参数整定方法
摘要：由于VSCHVDC大多采用的是直接电流控制策略,其采用的电流内环和电压、功率外环控制均通过PI调节器进行串联校正。因此采用合适的方法设计PI调节器的参数,对于控制系统的性能起着至关重要的作用。本文提出一种参数整定方法,综合考虑控制系统的稳态误差、上升时间、抗干扰性能3个指标,将电流内环、功率外环、直流电压外环分别设计为典型的I型环节,典型的一阶环节和典型的II型环节,使得控制系统具有良好的稳态和动态性能,最后在PSCAD/EMTDC中仿真验证所建立模型的有效性。
Abstract:High voltage direct current technology based on voltage source converter (VSC-HVDC) has such advantages as no commutation failure and no reactive power compensation. Because direct current control strategy is generally applied in VSC-HVDC, PI regulator is used for series correction in the inner current loop control, outer power and voltage loop controls. Therefore, it plays a vital role for improving control system performance if appropriate method would be utilized to design PI controller parameters. A kind of parameter tuning method is presented in this paper by considering such indexes as the steady-state error, the rising time, the anti-disturbance performance of the control system performance, by which the inner current loop, outer power and DC voltage loop are designed as classic I type link, classic first-order link and classic II type link respectively to ensure the control system having good steady-state and dynamic performance. In the end, the validity of VSC-HVDC system model is verified by PSCAD / EMTDC simulation.
标题：一种VSC-HVDC控制系统的PI参数整定方法
英文标题：A Method of PI Parameters Tuning for VSC-HVDC Control System
作者：杨晓楠, 陈红坤, 缪芸, 王岭, 胡文燕, 杨睿茜,
关键词：VSCHVDC, 控制系统, PI调节器, 电流内环, 外环,
发表日期：2015-08-09
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