Control Strategy for Wind Power Integration Based on Energy Demand Respond and Distributed Energy Storage

LIANG Chong; GAO Heng; YAN Xu; CHEN Jueyu

doi:10.16513/j.cnki.10-1427/tk.2018.02.009

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Distributed Energy ›› 2018, Vol. 3 ›› Issue (2) : 58-62. DOI: 10.16513/j.cnki.10-1427/tk.2018.02.009

Application Technology

Control Strategy for Wind Power Integration Based on Energy Demand Respond and Distributed Energy Storage

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Abstract

Installed capacity of wind power has reached 169 GW by the end of 2016 in China. However, China's abandoned wind power generation has soared since 2014 and about 4.97 billion kW·h was abandoned in 2016, which nearly equalled annual electricity consumption of Nanjing. The fluctuation of wind energy and coal power structure in China make large-scale wind power integration more difficult. Distributed energy storage has been regarded as a keytechnology to improve renewable energy integration. This paper analyses and compares several existing kinds of distributed energy storage for improving wind power integration. Then considering amass of cogeneration units in China, control strategy for wind power integration is proposed to reduce the peak regulation capacity for wind power integration. Control center reduces the heat capacity of cogeneration units and controls exchanged power of distributed energy storage systems with distribution network to obtain extra schedulable generated power. The affected users accordingly use heat pumps to compensate the lack of heat production from cogeneration. As a result, the peak-valley load difference can be equivalently reduced to relieve peaking pressure for wind power integration.

Key words

wind power / distributed energy storage / energy demand respond / cogeneration units

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LIANG Chong,GAO Heng,YAN Xu,CHEN Jueyu. Control Strategy for Wind Power Integration Based on Energy Demand Respond and Distributed Energy Storage[J]. Distributed Energy Resources. 2018, 3(2): 58-62 https://doi.org/10.16513/j.cnki.10-1427/tk.2018.02.009

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