基于伪微分反馈控制的水光互补微网研究  

Research of Pseudo Differential Feedback Control in Hydro-photovoltaic Complementary Micro-grid

作　　者：秦宇 王红艳[1] 吴至桂 QIN Yu;WANG Hongyan;WU Zhigui(Nanjing Institute of Technology,Nanjing 210000,China;Jianhu Branch of Yancheng Sanxin Power Supply Service Co.,Ltd.,Yancheng 224700,China)

机构地区：[1]南京工程学院,江苏南京210000 [2]盐城三新供电服务有限公司建湖分公司,江苏盐城224700

出　　处：《电工技术》2021年第10期86-89,共4页Electric Engineering

摘　　要：水光互补微网可以利用水电站的快速出力特性来补偿光伏电站的不稳定出力,使得大量的光伏发电能够被电网消纳。为提高水光互补微网输出功率质量,提出将伪微分反馈控制应用于水轮机功率闭环控制中。考虑到水轮机这类非最小相位系统具有的反调特性,将响应中产生的反调量作为惩罚函数加入适应度函数中并利用惯性递减的粒子群算法进行控制参数的寻优,最后在MATLAB中进行实例仿真。仿真分析结果表明,采用伪微分反馈控制可以减小整个微网功率输出的波动性,有利于水光互补微网的运行。Hydro-photovoltaic Complementary Micro-grid can make full use of the fast regulation capacity of hydropower station to compensate the unstable characteristic of photovoltaic power generation and help the grid absorb a large number of photovoltaic power generation.In order to improve the output power quality of Hydro-photovoltaic Complementary Micro-grid,the Pseudo differential feedback control is applied to the control of hydraulic turbine.Considering the characteristics of the non minimum phase system of turbine,the amount of the inverse adjustment produced in the response is added as penalty function to the fitness function and the particle swarm optimization algorithm with decreasing inertia is used to optimize the control parameters.Finally,an example is simulated in MATLAB.The simulation results show that the Pseudo differential feedback control can reduce the fluctuation of power output of the whole microgrid,which is conducive to the operation of the water light complementary microgrid.

关 键 词：水光互补 虚拟水电站 伪微分反馈控制 粒子群参数寻优 

分 类 号：TM910[电气工程—电力电子与电力传动]