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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: 2020-12-22
SUNGROW POWER SUPPLY CO LTD
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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 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 making creative efforts belong to the protection scope of the present invention.

[0046] An 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 and the energy storage conv...

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Abstract

The invention provides an energy storage converter, a photovoltaic energy storage system, an energy storage system and a resonance suppression method thereof. According to the method, after it is detected that resonance occurs between the energy storage converter and the energy storage converter in the energy storage system, a hardware oscillation point in the energy storage system can be modifiedto change the resonance state of the energy storage system, therefore, inherent resonance is effectively avoided, and the stability of the energy storage system is improved.

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 expansion of the energy storage market, the docking of energy storage converters and energy storage converters is becoming more and more frequent, which can diversify and 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 connected in series and parallel. [0004] In the existing energy storage system, if the energy storage converter...

Claims

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Application Information

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Patent Type & Authority Applications(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