Strategy to smooth tie‐line power of microgrid by considering group control of heat pumps. Issue 13 (19th December 2017)

• Record Type: Journal Article
• Authors: Shi, Jinxiao; Huang, Wentao; Tai, Nengling; Zhu, Qin; Liu, Dawei
• Is Part Of: Journal of engineering. Volume 2017:Issue 13(2017)
• Page Start: 2417
• Page End: 2422
• Publication Date: 2017-12-19
• Subjects: heat pumps -- energy management systems -- power generation control -- power grids -- distributed power generation -- energy storage; heat pumps -- partial tie‐line fluctuation power -- remaining tie‐line fluctuation power -- energy coordination control -- tie‐line fluctuation suppression -- power microgrid -- tie‐line power fluctuation -- coordination control strategy -- electricity–heat conversion model -- heat pump priority sequence; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2017.0763
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : In order to smooth the tie‐line power fluctuation effectively, this study presents a coordination control strategy for the combined heat and power microgrid based on heat pumps and energy storage system (ESS). The strategy establishes an electricity–heat conversion model of heat pumps. Heat pump priority sequence for state switching is calculated depending on the group control algorithm. By switching the heat pumps' on–off states, partial tie‐line fluctuation power is suppressed firstly. Weight functions are built considering the operating states of ESS and heat pumps. The remaining tie‐line fluctuation power is allocated among them. Simulation indicates the proposed strategy implements the energy coordination control of the tie‐line fluctuation suppression. Meanwhile, it improves the complementary economy and energy utilisation efficiency for the combined heat and power microgrid.