【作者】 米阳； 田越； 张寒； 王利民；

【Author】 Mi Yang;Tian Yue;Zhang Han;Wang Limin;College of Power Engineering, Shanghai University of Electric Power;Rizhao Power Company;

【机构】 上海电力学院电气工程学院； 日照供电公司；

【摘要】 提出光柴互补发电独立微网模型,包括光伏发电、柴油机发电和负荷等子系统。基于光伏电池的等效电路和输出特性,建立了光伏发电的模型并采用最大功率跟踪策略以充分利用太阳能。建立了柴油发电的数学模型,并设计一种PID负荷频率补偿控制器,通过控制柴油发电机的转速来调节其功率输出,进而调节微网的频率偏差。在matlab/simulink平台上建立了仿真模型,仿真结果表明,本文所提控制策略可以将频率偏差限制在±0.2Hz内,并拥有较快的响应速度,可以实现微网的频率稳定.更多还原

【Abstract】 A hybrid isolated microgrid is proposed including PV powr, diesel generator system, load and other subsystems.. Based the equivalent circuit and output characteristics of photovoltaic cells, PV model has been established and maximum power point tracking(MPPT) has been implemented to make full use of solar energy. Diesel model has been established,base on it PID load frequency compensation control method is proposed which adjust the power output by controlling the rotational speed of the diesel generator,then adjust the frequency derivation of the microgrid. Based on matlab/simulink, the simulation is conducted. The simulation result show that the control method we proposed can limit the frequency deviation within 0.2Hz and have a faster response speed, it can also realize the frequency stabilization of the microgrid更多还原