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Energy storage system output overshoot suppression control method and device

A technology of energy storage system and output value, applied in circuit devices, energy storage, greenhouse gas reduction, etc., can solve problems such as delay, affecting the response effect of grid AGC command and assessment income, etc.

Active Publication Date: 2015-07-08
北京睿能世纪科技有限公司 +2
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  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned signal transmission and control loop delays cause a delay in compensation for the deviation between the generator set and the grid AGC command, which is manifested in the overshoot between the actual combined output curve of the generator set and the energy storage system and the set response curve, which in turn affects the AGC of the grid. Response effects and assessment benefits of instructions

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  • Energy storage system output overshoot suppression control method and device
  • Energy storage system output overshoot suppression control method and device

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] Since the change of the output of the generator set will lead to the change of the output of the energy storage system, and in response to the AGC command of the same grid, a series of actions will occur from the moment of the actual output change of the generator set to the moment when the output change of the energy storage system is measured: The energy storage system monitors the output change of the generator set, calculates the output comm...

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Abstract

The embodiment of the invention discloses an energy storage system output overshoot suppression control method and a device. The method comprises steps: according to a set sampling frequency, generator set output and a power grid AGC (Automatic Generation Control) instruction are acquired periodically; a state is updated according to the AGC instruction, and energy storage system compensation coefficients are determined; on the basis of the energy storage system compensation coefficients and the generator set output and the power grid AGC instruction acquired at the current sampling time, an energy storage system output instruction of the energy storage system is determined, and the energy storage system is controlled to respond to the energy storage system output instruction. Thus, by using the scheme of the invention, during the process during which the energy storage system and the generator set coordinate to respond to the power grid AGC instruction, the energy storage system output overshoot is suppressed, combined output of the generator set and the energy storage system can be more precisely controlled, and effects of a response to the power grid AGC instruction are enhanced.

Description

technical field [0001] The invention relates to the field of power control, in particular to a control method and device for suppressing output overshoot of an energy storage system. Background technique [0002] Although the grid dispatching system in the power system can provide the predetermined amount of power generation to the corresponding generating units (for example: thermal power units, hydropower units, wind turbines, etc.) in advance so that the generating units can provide corresponding power generation; Due to the accidental and random nature of power consumption, the actual power consumption in the grid usually deviates from the predetermined power consumption. Therefore, in practical applications, the power grid dispatching system will send the power grid AGC to the generator set according to the real-time operating status of the power equipment. ((Automatic Generation Control, automatic power generation control) instruction requires the generator set to gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/28
CPCH02J3/28H02J3/381Y02E70/30
Inventor 薛飞刘冕赵佩宏王斌王兰忠杨松郭永红厚伯茏孙严李刚王立彪赵岩任伟
Owner 北京睿能世纪科技有限公司
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