中国电机工程学报2018，Vol.38Issue(2)：431-443,13.DOI:10.13334/j.0258-8013.pcsee.162420
提高风场柔直并网系统稳定性的控制器参数优化设计
Controller Parameters Optimization Design for Enhancing the Stability of Wind Farm With VSC-HVDC System
摘要
Abstract
Subsynchronous oscillation (SSO) phenomena may occur in a modular multilevel converter-based high-voltage DC (MMC-HVDC) transmission system for wind farm integration.The generation mechanism of the SSO phenomenon in an MMC-HVDC system for wind farm integration was revealed by using impedance-based analytical method.The harmonic state-space model of the MMC was established.Based on this,the ac-side small-signal impedance model of the MMC was derived by using the harmonic linearization principle,which takes the internal dynamic behaviors into account.From a point of view of single converter,the controller parameters of the wind farm side MMC (WFMMC) and wind power inverter were designed,respectively.On this base,from a point of view of system,an optimized design method for the controller parameters was proposed to cnhance the stability of the interconnected system.The impacts of main circuit parameters and operating modes of the MMC on the optimized result were also discussed.A time-domain simulation model of wind farm integration via an MMC-HVDC system was built by Matlab/Simulink.The simulation results validate the correctness of the theoretical analysis and the effectiveness of the proposed method.关键词
风电场/高压直流输电/模块化多电平换流器/稳定性/稳定控制/阻抗/谐波状态空间Key words
wind farm/high-voltage DC transmission (HVDC)/modular multilevel converter (MMC)/stability/stabilization control/impedance/harmonic state-space分类
信息技术与安全科学引用本文复制引用
吕敬,蔡旭..提高风场柔直并网系统稳定性的控制器参数优化设计[J].中国电机工程学报,2018,38(2):431-443,13.基金项目
国家重点研发计划课题(2016YFB0900901) （2016YFB0900901）
上海市科委科研计划项目(16DZ1203402).Project Supported by the National Key Research and Development Program (2016YFB0900901) （16DZ1203402）
Shanghai Science and Technology Committee Scientific Research Program (16DZ1203402). （16DZ1203402）
