基于分数阶滑模的混合微电网接口变换器电压稳定控制  

Voltage Stability Control of Interface Converter in Hybrid Microgrid Based on Fractional-order Sliding Mode

作　　者：王浩 聂晶莹 李斌[1,2] 康博阳 张国澎 WANG Hao;NIE Jingying;LI Bin;KANG Boyang;ZHANG Guopeng(School of Electrical Engineering and Automation,Henan Polytechnic University,Jiaozuo 454003,China;Henan International Joint Laboratory of Direct Drive and Control of Intelligent Equipment,Jiaozuo 454003,China)

机构地区：[1]河南理工大学电气工程与自动化学院,焦作454003 [2]河南省智能装备直驱技术与控制国际联合实验室,焦作454003

出　　处：《电力系统及其自动化学报》2024年第4期141-149,共9页Proceedings of the CSU-EPSA

基　　金：河南省科技攻关项目(232102240036);河南省自然科学基金资助项目(212300410147);河南省高校基本科研业务费专项资金(NSFRF230419);河南理工大学青年骨干教师资助计划(2022XQG-15)。

摘　　要：针对并网型交直流混合微电网直流侧母线电压波动问题,提出一种基于分数阶滑模控制的交直流混合微电网互联接口变换器电压稳定控制策略。首先,基于交直流混合微电网互联接口变换器的数学模型,设计控制参数并推导出可控标准型状态空间表达式。然后,针对控制目标选取状态变量并设计电压变结构和电流分数阶滑模控制器。最后,通过MATLAB/Simulink仿真和RT-LAB半实物平台验证了该控制策略与传统PI控制、传统单环滑模控制相比具有更好的追踪性能及鲁棒性。Aimed at the problem of DC-side bus voltage fluctuations in grid-connected AC/DC hybrid microgrid,a voltage stability control strategy for interlinking interface converter(IIC)in AC/DC hybrid microgrid based on fractional-order sliding mode control is proposed.First,based on the mathematical model of IIC in AC/DC hybrid microgrid,the control parameters are designed,and the controllable standard state space expression is derived.Then,the state variables are selected for the control target,and a voltage variable structure sliding mode controller and a current fractional-order sliding mode controller are designed,respectively.Finally,through the MATLAB/Simulink simulations and RT-LAB semi-physical platform,it is verified that compared with the traditional PI control and single-loop sliding mode control,the proposed control strategy has a better tracking performance and a better robustness.

关 键 词：交直流混合微电网 互联接口变换器 分数阶滑模 电压稳定 

分 类 号：TM46[电气工程—电器]