Large wind electric field energy storage access system

A large-scale wind farm and access system technology, applied in the field of energy storage systems, can solve the problems of wind power system grid connection and poor real-time information interaction

Inactive Publication Date: 2015-12-09
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a large-scale wind farm energy storage access system, which solves the technical problem of wind power system grid connection, and can realize information interaction and the real-time defect of external information interaction

Method used

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  • Large wind electric field energy storage access system
  • Large wind electric field energy storage access system

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Embodiment Construction

[0024] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, a large-scale wind farm energy storage access system includes: city grid 100, wind power supply source 200, wind power dual-mode inverter 300, energy storage battery 400, energy storage bidirectional converter 500, user load 600 and Absorbing load 700, the system includes three power supply branches: utility power branch, wind power branch and energy storage branch, and two load branches: user load branch and absorption load branch.

[0026] Wherein: the city network 100 is used to supply power to the user load 600, and to carry wind power feeding grid power; after the wind power supply source 200 is connected to the wind power dual-mode inverter 300, it is used to supply the user load 600 to supply power and feed power to the utility network 100, the wind power dual-mode invert...

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Abstract

The invention discloses a large wind electric field energy storage access system comprising a commercial power grid, a wind power supply source, a wind-electricity dual-mode inverter, an energy storage cell, an energy storage bidirectional current transformer, a user load, and an absorption load. The commercial power grid is used for supplying power to the user load and bearing electric energy of a wind power feed grid. After being connected with the wind-electricity dual-mode inverter, the wind power supply source is used for supplying power to the user load and feeding power to the commercial power grid. The wind-electricity dual-mode inverter is used for following the voltage of the commercial power grid or self-tuning output voltage. The absorption load is connected with the wind power supply source and is used for consuming residual electricity after the wind power supply source supplies power to the user load and charges the energy storage cell. The large wind electric field energy storage access system solves a technical problem of wind power system grid connection, and solves poor realtimeness of information interaction and external information interaction.

Description

technical field [0001] The invention relates to an energy storage system, in particular to a large-scale wind farm energy storage access system. Background technique [0002] At present, there are two main forms of wind power supply products for household units on the market: 1. Grid-connected power supply: the electric energy generated by the wind power supply source is integrated with the grid-connected inverter and the city grid to supply power to the load; 2. Off-grid power supply: wind power The electric energy generated by the power supply is isolated from the mains to supply power to the load independently. Whether it is on-grid or off-grid, it needs to be equipped with a certain capacity of energy storage to ensure the quality of power supply and make full use of the electric energy generated by wind power. [0003] The characteristic of grid-connected power supply is that the wind power and the city grid are connected to the same busbar and supply power to the load...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J3/38
CPCY02E10/76Y02E70/30
Inventor 雷珽张宇方陈刘舒时珊珊朴红艳袁加妍
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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