电源学报2024，Vol.22Issue(4)：163-172,10.DOI:10.13234/j.issn.2095-2805.2024.4.163
采用新型模型预测的光伏虚拟同步机低电压穿越控制
Low-voltage Ride-through Control of Photovoltaic Virtual Synchronous Generator Using Novel Model Prediction
摘要
Abstract
The use of virtual synchronous generator(VSG)strategy for a photovoltaic(PV)inverter can achieve inertia and damping support.The traditional VSG cannot provide transient reactive voltage support for the system and cannot meet the demand for voltage regulation during the low-voltage ride-through(LVRT)periods.After the occurrence of a grounding fault,the VSG control of the PV inverter is switched to model predictive control(MPC).After the grounding fault is removed,the MPC is switched back to the VSG control strategy.To improve the target current tracking capability during the LVRT periods,an adaptive objective function is set in the MPC.MATLAB/Simulink simulation and experimental results show that the PV VSG under the novel MPC has an LVRT capability.During the LVRT periods,the MPC current control is precise,and there is no transient current surge during the switching from the MPC to VSG control.关键词
虚拟同步机/光伏并网系统/低电压穿越/模型预测/平滑切换Key words
Virtual synchronous generator(VSG)/photovoltaic(PV)grid-connected system/low-voltage ride-through(LVRT)/model prediction/smooth switching分类
信息技术与安全科学引用本文复制引用
陈璐,张溪,党晓圆,李洁,冯铁成..采用新型模型预测的光伏虚拟同步机低电压穿越控制[J].电源学报,2024,22(4):163-172,10.基金项目
重庆市教委科学技术研究资助项目(KJZD-K202002401)This work is supported by Chongqing Municipal Education Commission Science and Technology Research Funding Project under the grant KJZD-K202002401 （KJZD-K202002401）
