Energy storage system output delay compensation control method and device
A technology of energy storage system and output value, which is applied in the direction of circuit device, AC network load balance, AC network circuit, etc., and can solve the problems affecting the response effect of AGC command of the power grid and the assessment income.
Active Publication Date: 2015-07-08
河北涿州京源热电有限责任公司 +2
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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 AGC command of the grid, which is manifested in the overshoot and deviation 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 power grid. The Response Effect and Assessment Benefits of AGC Instructions
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[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, not all, embodiments of the present invention. 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 command of the ene...
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The embodiment of the invention discloses an energy storage system output delay compensation control method and a device. The method comprises steps: according to a set sampling frequency, operation state information of a generator set and a power grid AGC (Automatic Generation Control) instruction are acquired periodically; according to the operation state information, an expected output value of the generator set after the energy storage system delays for a length of time is predicted; on the basis of the expected output value 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 delay is compensated, 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 compensation control method and device for output delay 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 generat...
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IPC IPC(8): H02J3/28
CPCH02J3/28H02J3/381
Inventor 王斌王兰忠杨松郭永红厚伯茏孙严李刚薛飞刘冕赵佩宏王立彪赵岩任伟
Owner 河北涿州京源热电有限责任公司