风光互补发电系统功率输出的自适应控制  

Adaptive Control of Power for Complementary Wind-PV Generation System

作　　者：王鲁浩[1] 焦晓红[1] 李晓[1] 

机构地区：[1]燕山大学电气工程学院,河北秦皇岛066004

出　　处：《电网与清洁能源》2013年第11期101-107,共7页Power System and Clean Energy

基　　金：高等学校博士学科点专项科研基金-博导类(20111333110007);河北省自然科学基金资助项目(F2010001322)~~

摘　　要：针对风光互补发电系统在运行过程中出现的供电功率空缺以及直流母线电压不稳定问题,依据光伏为主力发电源,风为辅助发电源的发电方式,提出了以风力发电的输出功率补偿光伏发电的输出功率的自适应控制方案。鉴于发电系统中固有的非线性特征和运行中的参数变化,对风力发电系统采用自适应控制实现对互补发电系统中所需功率的差额实时补偿,保证直流母线电压的平稳。为实现蓄电池充电稳定性,结合蓄电池非线性充电模型设计了充电电流跟踪控制器,确保对期望充电电流的跟踪。理论分析和仿真结果均表明,在互补发电系统运行中采取的控制策略的可行性。In view of supply the power vacancy and insta- bility of the bus voltage existing in the operation of the Wind-PV complementary power generation system, with the photovohaie as the main power supply and the wind as the auxiliary power supply, this paper presents an adaptive control strategy where the power output of the wind power generation compensates the power output of photovoltaic power generation. Considering the inherent nonlinearity and parameter perturbation existing in the operation of the generation system, the adaptive control for the wind power generation system is used to realize the real-time compensation for the required power in the complementary generation system to ensure the stability of the DC bus voltage. To achieve stability of the battery charging, a charging tracking controller is designed to track the expected charging current. Both theoretical analysis and simulation results prove feasibility of the adaptive control strategy and effectiveness of the designed controller.

关 键 词：风光发电系统 自适应控制 功率跟踪 

分 类 号：TM614[电气工程—电力系统及自动化]