A proposed reactive power controller for DG grid connected systems

2010 IEEE International Energy Conference Pub Date : 2010-12-01 DOI:10.1109/ENERGYCON.2010.5771722

M. Kandil, M. El-Saadawi, A. E. Hassan, K. Abo-Al-Ez

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引用次数: 21

Abstract

Most of currently grid connected Decentralized Generation (DG) systems are power electronics interfaced, and only manage their active power production. With industrial inductive loads, the utility grid has not only to supply their reactive power needs, but also to supply extra reactive power to compensate for the expected power factor deterioration caused by DG active power injection. Among various DG options, Fuel cell technology makes a clean, highly controllable and economically viable DG option. Local reactive power compensation is a particular feature of fuel cell systems, as they will always be very close to the point of usage of electricity. With smart control algorithm of the grid coupling inverter, it is possible to enable reactive power management of the fuel cell DG system. This paper presents a smart control algorithm of the fuel cell DG grid coupling inverter, which provides active/reactive power management capability for the DG unit. The controller modeling and performance validation is performed at a test system, for a proposed operation scenario using Matlab/Simulink and Simpower system blocks. This validation proves the capability of using the proposed controller for power factor improvement.

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一种DG并网系统无功功率控制器

目前大多数并网分布式发电系统都采用电力电子接口，并且只对其有功发电进行管理。对于工业电感负载，电网不仅要满足其无功需求，而且还要提供额外的无功功率来补偿因DG有功注入而导致的预期功率因数恶化。在众多的天然气选择中，燃料电池技术是一种清洁、高度可控、经济可行的天然气选择。局部无功补偿是燃料电池系统的一个特点，因为它们总是非常接近用电点。利用并网逆变器的智能控制算法，可以实现燃料电池DG系统的无功管理。提出了一种燃料电池DG并网逆变器的智能控制算法，为DG机组提供有功/无功管理能力。控制器建模和性能验证在测试系统中进行，使用Matlab/Simulink和Simpower系统模块进行拟议的操作场景。此验证验证了使用所提出的控制器改善功率因数的能力。

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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2010 IEEE International Energy Conference

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