中国电机工程学报2017，Vol.37Issue(10)：2887-2895,9.DOI:10.13334/j.0258-8013.pcsee.160576
基于变流器联合控制的永磁风电机组孤网调频方法
A Frequency Modulation Method of Wind Turbines With Permanent Magnet Synchronous Generators Based on Combination Control of Converters for Isolated Grids
摘要
Abstract
Aiming at the sudden change and the slight oscillation of frequency caused by fluctuations of loads and distributed generation in isolated grids,researches on frequency modulation of wind turbines with permanent magnet synchronous generators was conducted.A small-signal dynamic model of converters was proposed based on the improved torque droop control algorithm.The effects of the deloading factor,droop factor and DC-link voltage compensation on the generator-side converter input and the grid-side converter output were further studied respectively.In order to inhibit the disturbances of the wind speed and loads,a combination controller was designed based on the H∞ theory,and controller parameters were designed to optimize inputs and outputs of converters.The anti-disturbance capacity in isolated grids was increased to weaken sudden changes and the slight oscillation of frequency.Simulation results and comparison with other control methods show that operation data of wind power generators are relatively stable and the fluctuation of the isolated grid frequency is minimized based on the combination control of converters.The effectiveness of the proposed control strategy is verified through experiments.关键词
永磁风电机组/联合控制/降载控制/功率分配/频率调节Key words
wind turbine with permanent magnet synchronous generator/combination control/deloading control/power distribution/frequency modulation分类
信息技术与安全科学引用本文复制引用
杨俊友,王海鑫,白殿春,邢作霞,张华友,董丽萍,郑伟..基于变流器联合控制的永磁风电机组孤网调频方法[J].中国电机工程学报,2017,37(10):2887-2895,9.基金项目
国家能源应用技术研究及工程示范项目(NY20150303) （NY20150303）
沈阳市科技计划项目(F16-093-1-00) （F16-093-1-00）
中电投科技项目(CPINEDCSJ-201408-18).Application Technology Research and Engineering Demonstration Program of National Energy of China (NY20150303) （CPINEDCSJ-201408-18）
Shenyang Science and Technology Project (F16-093-1-00) （F16-093-1-00）
CPI Science Project (CPINEDCSJ-201408-18). （CPINEDCSJ-201408-18）
