Frequency Response of Motor Drive Loads in Microgrids

Daniel Joseph Ryan; Hugh Duffy Torresan; Reza RazzaghiBehrooz Bahrani

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Frequency Response of Motor Drive Loads in Microgrids

机译：Frequency Response of Motor Drive Loads in Microgrids

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Islanded microgrids require power reserve with fast primary-frequency response to operate stably. Primary-frequency response from generators or batteries incurs high costs. Alternatively, primary-frequency responsive loads reduce costs by allowing generators and batteries to operate more flexibly. In industrial microgrids, which comprise a significant portion of the microgrid market, electrical motors are a significant portion of the total load. However, existing demand response mechanisms are not suitable for motor loads in microgrids. In this article, a novel grid-supporting motor drive controller is proposed. This controller can be retrofitted to motor drive loads to provide fast primary-frequency response. A reduced-order analytical model of the motor drive load is derived, which can be directly integrated into system-wide frequency stability studies. Additionally, the primary-frequency response time of the motor drive is assessed, analytically and through EMT simulation, and is less than &inline-formula&&tex-math notation="LaTeX"&$text{100 ms}$&/tex-math&&/inline-formula&, which is comparable to large battery energy storage systems. Finally, the behaviour of a microgrid system that includes two large motor drive loads is assessed during various large disturbances through EMT simulation.

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《IEEE Transactions on Energy Conversion》 |2021年第2期|1197-1206|共10页
作者
Daniel Joseph Ryan; Hugh Duffy Torresan; Reza RazzaghiBehrooz Bahrani;
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作者单位

Electrical and Computer Systems Engineering, Monash University, Melbourne, VIC, Australia;

Monash University, Melbourne, VIC, Australia;

DST Group Melbourne, Port Melbourne, VIC, Australia;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类电工技术;
关键词
Microgrids; Motor drives; Control systems; Power system stability; Stability analysis; Frequency response; Frequency control; power system control; power system dynamics; demand response; variable speed drive; droop operation; load modelling;

Frequency Response of Motor Drive Loads in Microgrids

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