Energy storage power supply system and control method thereof

A power supply system and energy storage technology, which can be applied to three-wire or above DC circuits, parallel operation of DC power supplies, and load balancing in DC networks. The effect of utilization

Pending Publication Date: 2022-04-15
深圳市联洲国际技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides an energy storage power supply system and its control method, which can solve the technical problem that the energy storage power of each load power supply device in the existing energy storage power supply system cannot be shared

Method used

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  • Energy storage power supply system and control method thereof
  • Energy storage power supply system and control method thereof
  • Energy storage power supply system and control method thereof

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Embodiment Construction

[0020] 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.

[0021] For the convenience of readers' understanding, the following explains the relevant power parameters appearing in the embodiments of the present invention.

[0022] P in_i : The power delivered by the current AC power supply network to the i-th load power supply device. If it is negative, it means that the energy storage module of the i-th load power supply device transmits power to the AC power supply network through the DC-DC unit and the AC-DC unit.

[0...

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Abstract

The invention provides an energy storage power supply system and a control method thereof, the energy storage power supply system comprises a commercial power network and N load power supply devices, each load power supply device is connected with the commercial power network through an AC power supply network, and each load power supply device comprises an energy storage module, a power supply conversion module and a control module, the control modules of all the load power supply devices communicate with each other, can receive the related power parameters of all the load power supply devices, and carry out judgment and calculation of power regulation and control according to the related power parameters of all the load power supply devices. And when it is detected that the load power supply device corresponding to the control module needs to call out power to the load power supply device with insufficient power according to the judgment and calculation result, the energy storage module is controlled to output power to the alternating current power supply network, so that the alternating current power supply network supplies energy to the load power supply device with insufficient power. According to the invention, the energy storage power of each load power supply device can be shared.

Description

technical field [0001] The invention relates to the technical field of energy storage power supply, in particular to an energy storage power supply system and a control method thereof. Background technique [0002] see figure 1 , the existing energy storage power supply system includes the mains and multiple load power supply devices connected to the mains. When each load power supply is working, the mains and energy storage modules at the power supply end are usually used to supply power to the DC bus through the converter. Each user equipment at the power receiving end and the energy storage module in the charging mode are powered by the DC bus through their respective power supply conversion modules. However, each existing load power supply device works independently, and the energy storage power of each load power supply device cannot be shared. Contents of the invention [0003] The invention provides an energy storage power supply system and a control method thereo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/08H02J1/10H02J1/14
Inventor 李骄阳
Owner 深圳市联洲国际技术有限公司
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