Power system stabilization by charging power management of Plug-in Hybrid Electric Vehicles with LFC signal

2009 IEEE Vehicle Power and Propulsion Conference Pub Date : 2009-10-20 DOI:10.1109/VPPC.2009.5289763

M. Takagi, K. Yamaji, Hiromi Yamamoto

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引用次数: 65

Abstract

In the transport sector, Plug-in Hybrid Electric Vehicle (PHEV) is being developed as an environmentally friendly vehicle. The electric energy of PHEVs is charged mainly during nighttime when the electricity price is low. Therefore, we have proposed a charging power control of PHEVs to compensate the Load Frequency Control (LFC) capacity in the nighttime. In this study, we propose a control method based on Area Control Error (ACE) and frequency characteristic of PHEV KPHEV, which is a change in charging power divided by a change in frequency. ACE is a required adjustment in generation to keep the balance of supply-and-demand; hence, we can also keep the balance by adjusting the demand as much as ACE. LFC signal fLFC calculated by the following equation fLFC = −ACE/ KPHEV is dispersed to all PHEVs; then, PHEVs control the charging power on the basis of fLFC. We evaluated the proposed control method by using an interconnected 2-area model and obtained the following results. Charging power control based on the proposed method can effectively suppress tie-line flow deviation and frequency deviation, and it could substitute for LFC capacity.

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基于LFC信号的插电式混合动力汽车充电功率管理的电力系统稳定

在交通运输领域，插电式混合动力汽车(PHEV)作为一种环保汽车正在被开发。插电式混合动力车的电能主要是在电价较低的夜间充电。因此，我们提出了一种插电式混合动力汽车的充电功率控制，以补偿夜间负载频率控制(Load Frequency control, LFC)容量。在本研究中，我们提出了一种基于区域控制误差(ACE)和插电式混合动力汽车频率特性的控制方法，即充电功率的变化除以频率的变化。ACE是维持供需平衡所必需的发电调整;因此，我们也可以像ACE一样通过调整需求来保持平衡。LFC信号fLFC由下式fLFC =−ACE/ KPHEV计算，分散到所有phev;然后，phev在fLFC的基础上控制充电功率。我们使用一个相互关联的2区域模型对所提出的控制方法进行了评估，得到了以下结果:基于该方法的充电功率控制能有效抑制联络线流量偏差和频率偏差，可替代LFC容量。

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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2009 IEEE Vehicle Power and Propulsion Conference

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