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Energy storage converter, photovoltaic energy storage system, energy storage system and resonance suppression method thereof

An energy storage system and resonance suppression technology, which is applied in photovoltaic power generation, control/regulation systems, DC power input conversion to DC power output, etc., can solve problems such as easy resonance, and achieve the effect of avoiding resonance and improving stability

Active Publication Date: 2022-07-12
SUNGROW POWER SUPPLY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In this regard, this application provides an energy storage converter, a photovoltaic energy storage system, an energy storage system and a method for suppressing resonance thereof, so as to solve the problem that existing energy storage systems are prone to resonance during operation

Method used

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  • Energy storage converter, photovoltaic energy storage system, energy storage system and resonance suppression method thereof
  • Energy storage converter, photovoltaic energy storage system, energy storage system and resonance suppression method thereof
  • Energy storage converter, photovoltaic energy storage system, energy storage system and resonance suppression method thereof

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Embodiment Construction

[0045] 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.

[0046] The embodiment of the present application provides a method for suppressing resonance of an energy storage system, so as to solve the problem that the existing energy storage system is prone to resonance during operation.

[0047] See figure 2 , the resonance suppression method of the energy storage system mainly includes the following steps:

[0048] S101. Detect whether resonance occurs between the energy storage converter ...

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Abstract

The present application provides an energy storage converter, a photovoltaic energy storage system, an energy storage system and a method for suppressing resonance thereof. After the method detects that resonance occurs between the energy storage converter and the energy storage converter in the energy storage system , can change the resonance state of the energy storage system by modifying the hardware oscillation point in the energy storage system, thereby effectively avoiding the inherent resonance and improving the stability of the energy storage system.

Description

technical field [0001] The invention relates to the technical field of detection and control, in particular to an energy storage converter, a photovoltaic energy storage system, an energy storage system and a resonance suppression method thereof. Background technique [0002] With the continuous development of the energy storage market, the connection between energy storage converters and energy storage converters is becoming more and more frequent, and it can be diversified to match more levels of energy storage inverters. [0003] Existing energy storage systems can be found at figure 1 , which is mainly composed of energy storage converter B, transformer C, energy storage converter F and energy storage battery E. If the energy storage system is a photovoltaic energy storage system, it also includes a photovoltaic array A composed of a plurality of photovoltaic solar panels in series and parallel. [0004] In the existing energy storage system, if the energy storage conv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/24H02J3/00H02J3/32H02M3/158H02J3/38
CPCH02J3/24Y02E70/30
Inventor 方伟申智汪昌友陈强云刘亮董浩
Owner SUNGROW POWER SUPPLY CO LTD