Combined Frequency Regulationof ESS and Coal-fired Power Unit

BA Liming, FENG Pei, ZHAO Lulu, LEMMON John

Distributed Energy ›› 2016, Vol. 1 ›› Issue (2) : 44-49.

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Distributed Energy ›› 2016, Vol. 1 ›› Issue (2) : 44-49. DOI: 10.16513/j.cnki.10-1427/tk.2016.02.007
Application Technolog

Combined Frequency Regulationof ESS and Coal-fired Power Unit

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Abstract

With the surge of new energy integration and ultra-high voltage (UHV) lines, it calls for even more strict management in frequency regulation of power grid. Considering the long process flow, large thermal inertness of steam power system, the coal-fired power units are facing even higher pressure in frequency regulation. For this, an energy storage system (ESS)-aided frequency regulation was discussed in this paper. The system structure of dispatching command for combined ESS and coal-fired power units, was proposed;the simulation model was built on the platform of Matlab/Simulink to study the frequency regulation of energy storage;an instance study was made with practical operation data. The results show that the combination system can serve 2 to 3 times response than conventional system;the introduction of such ESS system with energy storage would not affect the safe operation of power units;It makes great reference for the development of auxiliary service market for power generation in reduced over-regulation, prolonged life span, safer and higher-efficiency operation of power system.

Key words

ESS / frequency regulation / coal-fired power units / AGC simulation

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Liming BA , Pei FENG , Lulu ZHAO , et al. Combined Frequency Regulationof ESS and Coal-fired Power Unit[J]. Distributed Energy Resources. 2016, 1(2): 44-49 https://doi.org/10.16513/j.cnki.10-1427/tk.2016.02.007

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