Effective CVR planning with smart DGs using MINLP

Md. Shakawat Hossan, B. Chowdhury, M. Arora, Churlzu Lim
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引用次数: 8

Abstract

Conservation Voltage Reduction (CVR) schemes and renewable energy based distributed generation (DG) can be coordinated to maintain lower node voltages for reducing load consumption and line losses in distribution systems. In addition, smart inverter interfaced DGs are significant resources to maintain the lowest possible voltages at the loading points and adjacent nodes. This paper describes a method of coordination of distributed smart inverters and existing network infrastructure (i.e., capacitor banks and step voltage regulator) of radial distribution system for precise CVR planning. This helps to keep the source voltage and LTC stepper in a range which can maintain the voltage profile within the lower ANSI band (0.95 p.u.–1.0 p.u) throughout the feeder. A mixed integer nonlinear Programming (MINLP) formulation is used to co-ordinate the whole network to keep the voltage in the desired service range. The IEEE 37 bus test system is used to validate the method and to compare with the outcome of conventional inverter based DGs for CVR deployment.
使用MINLP的智能dg进行有效的CVR规划
节约电压降低(CVR)方案和基于可再生能源的分布式发电(DG)可以协调一致,以保持较低的节点电压,从而减少配电系统的负荷消耗和线路损耗。此外,智能逆变器接口dg是维持负载点和相邻节点尽可能低电压的重要资源。本文介绍了一种将分布式智能逆变器与径向配电系统现有网络基础设施(即电容器组和阶跃稳压器)协调起来进行精确CVR规划的方法。这有助于保持源电压和LTC步进在一个范围内,可以保持电压分布在较低的ANSI波段(0.95 p.u - 1.0 p.u)在整个馈线。采用混合整数非线性规划(MINLP)方法对整个电网进行协调,使电压保持在期望的工作范围内。采用ieee37总线测试系统对该方法进行了验证,并与基于DGs的传统逆变器的CVR部署结果进行了比较。
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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