The development of a power flow-based controller for micro-grid systems

2016 IEEE Industry Applications Society Annual Meeting Pub Date : 2016-10-01 DOI:10.1109/IAS.2016.7731947

S. Saleh

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引用次数: 2

Abstract

This paper presents the analysis, development, and implementation of a new controller for micro-grid systems. The developed controller is structured to produce command values for the active and reactive powers (P_C and Q_C), and d-q-axis voltage components (v_dC and v_qC) for each bus in the micro-grid system at hand. Values for P_C, Q_C, v_dC, and v_qC are obtained using a power flow formulated in the d-q-axis frame. The d-q-axis power flow (DQPF) produces values for P_C,Q_C, v_dC, and v_qC that can meet load demands, respond to variations in power generation within the micro-grid, and accommodate the mode of operating the micro-grid (interconnected or stand-alone), while maintaining the voltage and frequency stability. The DQPF-based controller is implemented for performance evaluation using a 5-bus micro-grid system operated under various conditions, including changes in power generation, step changes in load demands, and changes in mode of operation. Test results demonstrate that the DQPF-based controller can offer simple implementation, accurate and fast responses, and negligible sensitivity to the mode of micro-grid operation.

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基于潮流的微电网系统控制器的研制

本文介绍了一种用于微电网系统的新型控制器的分析、开发和实现。所开发的控制器的结构是为手头微电网系统中每个母线的有功和无功功率(PC和QC)以及d-q轴电压分量(vdC和vqC)生成命令值。“PC”、“QC”、“vdC”和“vqC”的数值根据d-q轴框架中的功率流公式计算。d-q轴功率流(DQPF)为PC、QC、vdC和vqC产生的值可以满足负载需求，响应微电网内发电的变化，并适应微电网的运行模式(互联或独立)，同时保持电压和频率的稳定。基于dqpf的控制器实现了5总线微电网系统在各种条件下的性能评估，包括发电量的变化、负载需求的阶跃变化和运行方式的变化。实验结果表明，基于dqpf的控制器实现简单、响应准确、速度快，对微网运行模式的灵敏度可以忽略。

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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2016 IEEE Industry Applications Society Annual Meeting

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