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首页> 外文期刊>Journal of Electrical Systems and Information Technology >Control of fuzzy logic based PV-battery hybrid system for stand-alone DC applications
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Control of fuzzy logic based PV-battery hybrid system for stand-alone DC applications

机译：独立直流应用中基于模糊逻辑的光伏电池混合系统的控制

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The paper presents a hybrid system comprising of photovoltaic (PV) and battery with fuzzy logic control (FLC) to meet the demands of isolated off grid DC loads. Perturb and Observe (P&O) method is used to achieve the maximum power point tracking (MPPT) by controlling the duty cycle of a dc–dc boost converter. Fuzzy logic controller regulates the power flow of the battery by means of a bidirectional buck-boost converter. The complete energy management system has been validated in MATLAB/SIMUINK with variable solar irradiation profile. The simulation results show that the system with fuzzy logic control prolongs the battery lifespan by reducing the battery peak current up to 0.22% and also significantly decreases the settling time and peak overshoot of the DC load voltage up to 16.23% and 14.62% as compared to the system with conventional PID control.
机译：本文提出了一种由光伏（PV）和具有模糊逻辑控制（FLC）的电池组成的混合系统，以满足隔离离网直流负载的需求。扰动和观察（P＆O）方法用于通过控制dc-dc升压转换器的占空比来实现最大功率点跟踪（MPPT）。模糊逻辑控制器通过双向降压-升压转换器来调节电池的功率流。完整的能源管理系统已在MATLAB / SIMUINK中经过验证，具有可变的太阳辐照曲线。仿真结果表明，具有模糊逻辑控制的系统可将电池峰值电流降低至0.22％，从而延长了电池寿命，与之相比，直流负载电压的建立时间和峰值过冲也分别显着降低了16.23％和14.62％。具有常规PID控制的系统。

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