PDF(1651 KB)
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.
PDF(1651 KB)
PDF(1651 KB)
Combined Frequency Regulationof ESS and Coal-fired Power Unit
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.
ESS / frequency regulation / coal-fired power units / AGC simulation
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