基于预测控制的微电网优化运行

Florin Butaru, Ciprian Carstea, C. Lascu, Mihaela-Codruta Ancuti
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引用次数: 1

摘要

本文的目的是建立一种基于LC滤波器输出电压的预测算法,以实现交流微电网运行中对捕获太阳能的最大功率点跟踪。调节微电网输入电压的方法通常是通过线性控制回路来实现的。这种类型的控制具有对参数变化高灵敏度和瞬态响应慢等局限性。分析了微电网在最大功率点的运行情况。根据仿真数据确定了逆变器的最优功率值。仿真在MATLAB/Simulink仿真环境下进行。在矢量控制的基础上,根据相位图提前计算逆变器晶体管上的压降,以便下一步工作。设计了一种预测算法,以确保在最大功率点区域MPP(即从能量角度来看的最优区域)稳定运行。
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Optimal Operation of Microgrid Employing Predictive Control
The purpose of the present paper is to build a predictive algorithm based on the output voltage of the LC filter in order to achieve the AC Microgrids operation in the maximum power point tracking of the captured solar energy. Methods of regulating the microgrids input voltage are conventionally achieved by linear control loops. This type of control presents limitations like high sensitivity to parameter variations and slow transient response. The operation of the microgrids at the maximum power point is analyzed. The inverter’s the optimal power values are determined based on the simulated data. The simulations were carried out in the MATLAB/Simulink simulation environment. Based on the vector control, the voltage drops on the inverter transistors are calculated in advanced for the next step, based on the phase diagram. A predictive algorithm is designed to ensure a stable operation in the maximum power point area, MPP, (i.e. the optimal area from the energy point of view).
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