摘要
基于充分发展利用新能源、降低光伏发电弃光率的目的,本文针对当前在光伏发电系统并网中存在的电能质量不稳定、影响电网稳态运行的问题进行了研究与设计。对光伏发电系统各个模块进行设计,在此基础上采用PIR控制器代替传统的PI控制器的控制策略,对光伏逆变器进行控制。利用Matlab/Simulink进行设计方案与策略可行性的验证,通过仿真结果可得,本文所用方法能够充分保证并网电流和电网电压同频同相,将输出功率因数控制在1。充分说明了其有效与可行性。
Based on the purpose of fully developing and utilizing new energy and reducing the abandonment rate of photovoltaic power generation,this paper studies and designs the problems of power quality instability and steady-state operation of power grid existing in the grid-connected photovoltaic power generation system. Each module of photovoltaic power generation system is designed. On this basis,PIR controller is used to replace the control strategy of traditional PI controller to control photovoltaic inverter. The feasibility of the design scheme and strategy is verified by Matlab/Simulink.Through the simulation results,the method used in this paper can fully ensure that the grid-connected current and power grid voltage are in the same frequency and phase,and the output power factor can be controlled at 1. Its effectiveness and feasibility are fully explained.
作者
霍艺文
徐武
陶静
李逸琳
HUO Yi⁃wen;XU Wu;TAO Jing;LI Yi⁃lin(Institute of Electrical and Information Engineering,Yunnan Minzu University,Kunming 650500,China)
出处
《电子设计工程》
2020年第1期108-112,共5页
Electronic Design Engineering
基金
国家自然科学基金(61461055)
云南省科技厅项目(2017FD120)
