Dual-Channel Subsynchronous Damping Control based on Voltage Source Converter Excitation System

Jiancheng Zhang, Kuayu Wu, Hongtao Xiong, Boliang Lou
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引用次数: 0

Abstract

A novel dual-channel damping control based on voltage source converter (VSC) excitation system is put forward in this paper to suppress subsynchronous oscillation for turbine generators. The proposed control is a combination of both supplementary excitation damping control (SEDC) and supplementary subsynchronous damping control (SSDC) but only implemented in one device. A small perturbation linearized model considering the dual-channel damping is built and the complex torque coefficients method is adopted to analyze the damping characteristic of the proposed control. Based on the analytical analysis, a decoupling tuning method for the dual-channel damping control is proposed. The effectiveness and superiority of the proposed subsynchronous damping control are verified through PSCAD simulation.
基于电压源变换器励磁系统的双通道次同步阻尼控制
为了抑制汽轮发电机的次同步振荡,提出了一种基于电压源变换器(VSC)励磁系统的双通道阻尼控制方法。所提出的控制是补充励磁阻尼控制(SEDC)和补充次同步阻尼控制(SSDC)的组合,但仅在一个设备中实现。建立了考虑双通道阻尼的小摄动线性化模型,采用复转矩系数法分析了所提控制的阻尼特性。在分析的基础上,提出了一种双通道阻尼控制的解耦整定方法。通过PSCAD仿真验证了所提出的次同步阻尼控制的有效性和优越性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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