A novel control strategy for stand-alone operation of a wind dominated RAPS system

N. Mendis, K. Muttaqi, S. Perera, M. Uddin
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引用次数: 27

Abstract

This paper presents a novel control strategy for a high penetrated wind based hybrid Remote Area Power Supply (RAPS) system. The proposed RAPS system consists of a Permanent Magnet Synchronous Generator (PMSG) based variable speed wind turbine and a battery energy storage system with a dump load for DC bus voltage control and a diesel generator as a back-up supply. An integrated control approach based on active and reactive power balance of the proposed RAPS system has been proposed and developed with a view to regulate the voltage and frequency within an acceptable bandwidth. The proposed integrated control algorithm is implemented by developing controller for the individual system components in the RAPS system including wind energy conversion system, diesel generator, battery storage and dump load while coordinating their responses to achieve optimal operation. The optimised operation for the proposed RAPS system is realised by operating the wind turbine generator on its maximum power extraction mode while restricting the operation of diesel generating system at low-load conditions. In addition to the detailed model, which associated with non-linear high order characteristic of each system components, a linearlised model of the RAPS system is presented with a view to compare the active power sharing among the system components. The suitability of the proposed control strategy has been tested under varying system conditions including fluctuating wind and variable load.
一种新的风控RAPS系统单机运行控制策略
提出了一种新型的高渗透风力混合远程供电系统控制策略。所提出的RAPS系统由一个基于永磁同步发电机(PMSG)的变速风力发电机和一个蓄电池储能系统组成,该系统具有用于直流母线电压控制的转储负载和作为备用电源的柴油发电机。提出并开发了一种基于有功功率和无功功率平衡的综合控制方法,以期在可接受的带宽内调节电压和频率。提出的综合控制算法通过对RAPS系统中风能转换系统、柴油发电机、蓄电池和自卸负荷等单个系统组件开发控制器,协调其响应以实现最优运行来实现。本文提出的RAPS系统的优化运行是通过在低负荷条件下限制柴油发电系统运行的同时,将风力发电机组运行在其最大功率提取模式来实现的。在详细描述系统各组成部分的非线性高阶特性的基础上,建立了RAPS系统的线性化模型,以比较各组成部分的有功功率分担情况。在不同的系统条件下,包括波动风和变负荷,测试了所提出的控制策略的适用性。
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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