可再生能源2025，Vol.43Issue(4)：534-541,8.
基于有限控制集模型预测控制的全直流风电系统电压稳定控制
Voltage stabilization control of all DC wind power systems based on finite control set-model predictive control
摘要
Abstract
In order to ensure the safe grid-connected operation of all DC wind power system,the system voltage stability control is crucial.At present,when the DC voltage stability control of all DC wind power system adopts the proportional-integral(PI)control,the dynamic response speed is relatively slow under the non-normal operation condition,the control accuracy is not high enough,and the PI parameter is more and more cumbersome and complicated to be calibrated.To address the above problems,this paper proposes a system DC voltage stabilization control strategy based on the principle of Finite Control Set-Model Predictive Control(FCS-MPC)to control the switching state of transistors of bridge arms of the system converter.The strategy combines the current prediction models of machine-side rectifiers and grid-connected inverters,constructs a cost function with the output current of the converter as the control variable,takes the cost function as the optimization objective,introduces the delay compensation to improve the control accuracy in order to avoid the control delay caused by the computational delay,and introduces the weight coefficients to realize the multi-objective optimization,and generates the optimal switching combinations of the signals to trigger the converter through the traversal calculation.In this paper,the simulation model of all DC wind power system is established in Matlab/Simulink,and the proposed strategy is compared with the traditional PI control in different working conditions,and the simulation results effectively verify the static and dynamic performance of the proposed control strategy.关键词
全直流风电系统/有限控制集模型预测控制/电压稳定控制/换流器/风电并网Key words
all-DC wind power system/finite control set-model predictive control/voltage stability control/converter/wind power grid connection分类
能源科技引用本文复制引用
马智,蔺红,樊艳芳..基于有限控制集模型预测控制的全直流风电系统电压稳定控制[J].可再生能源,2025,43(4):534-541,8.基金项目
国家重点研发计划项目(2021YFB1507000) （2021YFB1507000）
新疆维吾尔自治区重点研发专项资助项目(2022B01020-3). （2022B01020-3）
