Electric energy storage control method and device of energy storage system
A technology of energy storage system and control method, which is applied in information technology support systems, instruments, and single-network parallel feeding arrangement, etc., can solve the problem of no specific research on electric energy storage control.
Pending Publication Date: 2020-06-12
STATE GRID LIAONING ELECTRIC POWER RES INST +2
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[0004] At present, there is no specific research on electric energy storage control in the literature and products, but there is research on the use of energy storage equipment during load peaks and low valleys. Aiming at the above blanks, the present invention proposes an electric energy storage control function
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[0054] The present invention is an electric energy storage control method and device for an energy storage system. The electric energy storage control refers to that the auxiliary thermal power of the energy storage power station participates in frequency modulation and peak regulation, so as to meet the needs of power grid frequency regulation and peak regulation, and reduce wind and light curtailment. Under the premise of maintaining the deviation between the grid system frequency and the standard frequency, it is stable within the allowable range. As an electric energy storage control, the present invention belongs to the field of automatic power generation control.
[0055] An electric energy storage control method of an energy storage system according to the present invention comprises the following steps:
[0056] According to the comparison result of the area control deviation value ACE and the set threshold value, the area to which ACE belongs is divided into dead zone...
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The invention relates to the technical field of operation and control of power systems, in particular to an electric energy storage control method and device of an energy storage system, and belongs to the technical field of power system dispatching automation. The method comprises the following steps: dividing an interval to which ACE belongs into a dead zone, a normal zone, a help zone and an emergency zone according to a comparison result of an area control deviation value ACE and a set threshold value; determining a control mode according to the interval to which the ACE belongs, wherein the control mode comprises an ACE control mode, a scheduling control mode and a planning mode; and determining when the energy storage system is charged and discharged and the charge-discharge electricquantity according to the power grid demand, and performing charge-discharge control on the energy storage system by adopting a corresponding control mode to assist the thermal power generating unitin frequency modulation and peak regulation. The method and the device can meet the requirements of power grid frequency modulation and peak regulation, and the deviation between the power grid systemfrequency and the standard frequency is maintained to be stable in an allowed range.
Description
technical field [0001] The invention relates to the technical field of operation and control of electric power systems, in particular to an electric energy storage control method and device for an energy storage system, and belongs to the technical field of electric power system scheduling automation. Background technique [0002] With the rapid growth of my country's power grid scale and the addition of various new energy sources, dispatchers are under increasing pressure on regulation and control, and the mode of mainly relying on manual dispatch will gradually become difficult to adapt to. The power grid including large-scale wind power has its own characteristics in terms of peak-valley regulation, frequency control, voltage control, and maximum energy storage efficiency. The traditional dispatch automation system can no longer fully meet the needs of its dispatch operation. [0003] Based on the prediction results of the daily load curve, the power grid's power generati...
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IPC IPC(8): H02J3/28H02J3/32H02J3/46G06Q10/06G06Q50/06
CPCH02J3/28H02J3/32H02J3/46G06Q10/06312G06Q10/06315G06Q50/06Y04S10/50
Inventor 李铁苏安龙高凯姜枫崔岱王钟辉唐俊刺孙力勇杨晓明张宇时许小鹏王顺江郭春雨冯占稳朱伟峰詹克明何超军王明凯周志韩秋吴溪董博常荣明韦明李成程从海洋王刚曾辉杨滢璇尚学伟张波余建明张连超张雷吴鑫邓波刘姗张若宸
Owner STATE GRID LIAONING ELECTRIC POWER RES INST