Fuzzy controlled power management strategies for a grid connected hybrid energy system

2014 IEEE PES T&D Conference and Exposition Pub Date : 2014-04-14 DOI:10.1109/TDC.2014.6863503

T. P. Kumar, N. Subrahmanyam, M. Sydulu

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引用次数: 4

Abstract

This paper describes a fuzzy controlled power management strategies for a grid connected hybrid energy system. The hybrid energy system consists of a Photovoltaic (PV) array model and a Solid Oxide fuel cell (SOFC). As the solar energy is intermittent in nature the system becomes uncontrollable. To make the system controllable and deliver maximum power to the load a fuzzy controlled Solid Oxide Fuel Cell (SOFC) is used with Fuzzy maximum power point tracking (MPPT) controlled Photovoltaic array to make the output power of the hybrid energy system controllable. The two power management strategies unit power control and feeder flow control strategies are used to operate a grid connected Photovoltaic (PV) array and a Solid Oxide Fuel Cell (SOFC) hybrid energy system. The proposed operating strategy coordinates the two control modes, Unit Power Control (UPC) and feeder-flow control (FFC) mode and make the hybrid system output controllable. The proposed fuzzy controlled hybrid system eliminates the perturbations in the PV output power and transients in the fuel cell voltage and always operates the hybrid energy system at maximum output power with reduced number of mode changes.

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并网混合能源系统的模糊控制电源管理策略

本文介绍了一种并网混合能源系统的模糊控制电源管理策略。该混合能源系统由光伏(PV)阵列模型和固体氧化物燃料电池(SOFC)组成。由于太阳能本质上是间歇性的，系统变得不可控。为了使混合能源系统具有可控性并向负载输出最大功率，采用模糊控制固体氧化物燃料电池(SOFC)与模糊最大功率点跟踪(MPPT)控制光伏阵列相结合，使混合能源系统的输出功率可控。采用单元功率控制和馈线流量控制两种电源管理策略对并网光伏(PV)阵列和固体氧化物燃料电池(SOFC)混合能源系统进行运行控制。提出的运行策略协调了单元功率控制(UPC)和馈流控制(FFC)两种控制模式，使混合系统输出可控。所提出的模糊控制混合系统消除了光伏输出功率的扰动和燃料电池电压的瞬态变化，使混合能源系统始终以最大输出功率运行，减少了模式变化次数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2014 IEEE PES T&D Conference and Exposition

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