基于模型预测控制的虚拟同步发电机控制策略

杨旭红; 李辉; 金宏艳; 吴亚雄

doi:10.19912/j.0254-0096.tynxb.2021-0486

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太阳能学报 ›› 2022, Vol. 43 ›› Issue (11) : 508-514. DOI: 10.19912/j.0254-0096.tynxb.2021-0486

基于模型预测控制的虚拟同步发电机控制策略

杨旭红, 李辉, 金宏艳, 吴亚雄

作者信息 +

VIRTUAL SYNCHRONOUS GENERATOR CONTROL STRATEGY BASED ON MODEL PREDICTIVE CONTROL

Yang Xuhong, Li Hui, Jin Hongyan, Wu Yaxiong

Author information +

文章历史 +

摘要

为了提高惯性和促进电网恢复,提出一种基于LCL型并网逆变器的虚拟同步发电机模型预测控制（MPC-VSG）策略。该方法在模型预测控制（MPC）中引入虚拟同步发电机（VSG）控制输出电流内环的参考值,使内环电流参考值可随电网电压和频率变化。基于Matlab搭建仿真模型,和MPC控制方法相对比和分析。仿真结果表明：当逆变器输出功率发生变化时,采用VSG的模型预测控制可增加电网的惯性和稳定性,改善系统暂态过程。

Abstract

In order to improve the inertia and promote the restoration of the power grid, a virtual synchronous generator model predictive control（MPC-VSG） strategy based on the LCL grid-connected inverter is proposed. This method introduces the virtual synchronous generator（VSG） into the model predictive control（MPC） to control the reference value of the output current inner loop, so that the reference value of the inner loop current can change with the grid voltage and frequency. The simulation model is established with Matlab and compared with the MPC control method. The simulation results show that as the inverter output power changes, the VSG model predictive control can increase the inertia and stability of the power grid, improve system transient process.

导出引用

杨旭红, 李辉, 金宏艳, 吴亚雄. 基于模型预测控制的虚拟同步发电机控制策略[J]. 太阳能学报. 2022, 43(11): 508-514 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0486

Yang Xuhong, Li Hui, Jin Hongyan, Wu Yaxiong. VIRTUAL SYNCHRONOUS GENERATOR CONTROL STRATEGY BASED ON MODEL PREDICTIVE CONTROL[J]. Acta Energiae Solaris Sinica. 2022, 43(11): 508-514 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0486

中图分类号： TM615

参考文献

[1] GUO K, TANG Y, FANG J Y.Exploration of the relationship between inertia enhancement and DC-Link capacitance for Grid-Connected converters[C]//2018 IEEE 4th Southern Power Electronics Conference, Singapore, 2018.
[2] 李霞林, 郭力, 黄迪, 等. 直流配电网运行控制关键技术研究综述[J]. 高电压技术, 2019, 45(10): 3039-3049.
LI X L, GUO L, HUANG D, et al.Research review on operation and control of DC distribution network[J]. High voltage engineering, 2019, 45(10): 3039-3049.
[3] 王成山, 郭力. 直流配电系统关键技术及应用[J]. 供用电, 2018, 35(1): 1-6.
WANG C S, GUO L.Key technologies and applications of DC power distribution system[J]. Electricity supply, 2018, 35(1): 1-6.
[4] 张晓, 谭力, 鲜嘉恒, 等. LCL并网逆变器预测电流控制算法[J]. 电工技术学报, 2019, 34(增刊1): 189-201.
ZHANG X, TAN L, XIAN J H, et al.Predictive current control algorithm for grid-connected inverter with LCL filter[J]. Transactions of China Electrotechnical Society, 2019, 34(S1): 189-201.
[5] 柳志飞, 杜贵平, 杜发达. 有限集模型预测控制在电力电子系统中的研究现状和发展趋势[J]. 电工技术学报, 2017, 32(22): 58-69.
LIU Z F, DU G P, DU F D.Research status and development trend of finite set model predictive control in power electronic systems[J]. Transactions of China Electrotechnical Society, 2017, 32(22): 58-69.
[6] 曹晓冬, 谭国俊, 王从刚, 等. 三电平PWM整流器多模型预测控制方法[J]. 电工技术学报, 2014, 29(8): 142-150.
CAO X D, TAN G J, WANG C G, et al.Research on multi-model predictive control strategy of three-level PWM rectifier[J]. Transactions of China Electrotechnical Society, 2014, 29(8): 142-150.
[7] 梁营玉, 张涛, 刘建政, 等. 模型预测控制在MMC-HVDC中的应用[J]. 电工技术学报, 2016, 31(1): 128-138.
LIANG Y Y, ZHANG T, LIU J Z, et al.The application of model predictive control for MMC-HVDC[J]. Transactions of China Electrotechnical Society, 2016, 31(1): 128-138.
[8] 周仁才, 吴召华, 姜春莹. 模块化多电平变换器的APF预测控制[J]. 电力电子技术, 2020, 54(8): 112-115.
ZHOU R C, WU Z H, JIANG C Y.Predictive control of APF base on modular multilevel converters[J]. Power electronics technology, 2020, 54(8): 112-115.
[9] 姚绪梁, 黄乘齐, 王景芳, 等. 两相静止坐标系下的永磁同步电动机模型预测功率控制[J]. 电工技术学报, 2021, 36(1): 60-67.
YAO X L, HUANG C Q, WANG J F, et al.Model predictive power control of permanent magnet synchronous motor in two-phase static coordinate system[J]. Transactions of China Electrotechnical Society, 2021, 36(1): 60-67.
[10] 肖智明, 陈启宏, 张立炎. 电动汽车双向DC-DC变换器约束模型预测控制研究[J]. 电工技术学报, 2018, 33(增刊2): 489-498.
XIAO Z M, CHEN Q H, ZHANG L Y.Research on constraint model predictive control for bidirectional DC-DC converters of electric vehicles[J]. Transactions of China Electrotechnical Society, 2018, 33(S2): 489-498.
[11] 缪惠宇, 杨赟, 梅飞, 等. 一种虚拟同步机运行模式平滑切换控制策略[J]. 太阳能学报, 2020, 41(9): 121-128.
MIAO H Y, YANG Y, MEI F, et al.A smooth switching control strategy for virtual synchronous machine operation mode[J]. Acta energiae solaris sinica, 2020, 41(9): 121-128.
[12] 刘辉, 高舜安, 孙大卫, 等. 光伏虚拟同步发电机并网小信号稳定性分析[J]. 太阳能学报, 2021, 42(2): 417-424.
LIU H, GAO S A, SUN D W, et al.Small signal stability analysis of grid-connected photovoltaic virtual synchronous generators[J]. Acta energiae solaris sinica, 2021, 42(2): 417-424.
[13] 张福东, 朴政国, 郭裕祺, 等. VSG转动惯量的自适应控制策略研究[J]. 太阳能学报, 2020, 41(10): 93-100.
ZHANG F D, PIAO Z G, GUO Y Q, et al.Research on the adaptive control strategy of VSG rotational inertia[J]. Acta energiae solaris sinica, 2020, 41(10): 93-100.
[14] LI J, WEN B Y, WANG H Y.Adaptive virtual inertia control strategy of VSG for micro-grid based on improved Bang-Bang control strategy[J]. IEEE access, 2019, 7: 39509-39514.
[15] SHI R L, ZHANG X, HU C, et al.Self-tuning virtual synchronous generator control for improving frequency stability in autonomous photovoltaic-diesel microgrids[J]. Journal of modern power systems and clean energy, 2018, 6(3): 482-494.