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A frequency modulation system and its control method

A control method and control system technology, applied in the field of frequency modulation system and its control, can solve problems such as limited energy storage capacity and limited frequency modulation capability, and achieve the effects of improving frequency modulation capability, expanding energy storage capacity, and improving energy storage utilization rate

Active Publication Date: 2021-11-02
SUNGROW POWER SUPPLY CO LTD
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Problems solved by technology

[0004] In this regard, the present application provides a frequency regulation system and its control method to solve the problem of limited frequency regulation capability caused by the limited energy storage capacity of existing generating sets

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  • A frequency modulation system and its control method
  • A frequency modulation system and its control method
  • A frequency modulation system and its control method

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Embodiment Construction

[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0056] The embodiments of the present application provide a frequency regulation system to solve the problem of limited frequency regulation capability caused by the limited energy storage capacity of the existing generator set.

[0057] See figure 1 , the frequency modulation system includes: a control system 100, M generator sets 101 (such as figure 1 generators #1, #2, #3, and #4 shown in), N energy storage units 102 (such as fig...

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Abstract

The present application provides a frequency modulation system and its control method. The frequency modulation system includes: a control system, M generator sets, N energy storage units, N double-winding transformers, M multi-winding transformers and multiple switches; M and N is a positive integer greater than 1; since each energy storage unit in the frequency modulation system passes through its corresponding double-winding transformer, it is connected to each generator set through the corresponding switch and multi-winding transformer respectively, so the frequency modulation control system can be based on the demand The energy storage unit can be flexibly configured to any generator set to realize the multi-purpose function of one machine, which can effectively improve the utilization rate of energy storage while expanding the energy storage capacity, and can also enable multiple generator sets to realize frequency regulation at the same time, improving the efficiency of the generator set. frequency modulation capability.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a frequency modulation system and a control method thereof. Background technique [0002] The traditional power grid frequency regulation is completed by hydropower generator sets or thermal power generator sets. However, with the increase of the scale of the power grid and the large-scale grid connection of renewable energy power generation systems, the frequency fluctuation of the power grid is aggravated, and the defects of the traditional power grid frequency regulation are gradually exposed. Due to the slow response and low ramp rate of thermal generators, they cannot follow AGC (Automatic Generation Control) commands very well, while hydroelectric generators are greatly affected by seasons and regions, and their frequency regulation function will also be affected. [0003] Although the above problems can be compensated by increasing the capacity of the unit, it cannot sol...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/48H02J3/32
CPCH02J3/32H02J3/48
Inventor 李康李国宏蔡壮张杨曹晓辉
Owner SUNGROW POWER SUPPLY CO LTD
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