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Distributed energy storage aggregation system and control method thereof

A distributed energy storage and control method technology, which is applied in the field of distributed energy storage aggregation system and its control, can solve the problems of decentralized layout and poor controllability, and achieve the effect of reducing capacity and reducing peak-valley arbitrage

Pending Publication Date: 2021-07-23
南京国电南自新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with centralized energy storage, distributed energy storage reduces the line loss and capital pressure of centralized energy storage power stations, but at the same time, distributed energy storage also has the characteristics of decentralized layout and poor controllability

Method used

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  • Distributed energy storage aggregation system and control method thereof
  • Distributed energy storage aggregation system and control method thereof
  • Distributed energy storage aggregation system and control method thereof

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Experimental program
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Embodiment Construction

[0026] In order to further describe the technical features and effects of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] A distributed energy storage aggregation system provided by the present invention is as Figure 1-4 shown, including:

[0028] The microgrid control sheet includes: a microgrid control center (Energy Management System, energy management system), an information collection device, a communication device, a static switch, a number of electric switches and a circuit breaker; the load unit and the energy unit communicate with each other through the electric switch The AC bus is connected, and the AC bus is connected to the power grid through a static switch and a circuit breaker; the micro-grid control center is connected to the electric switch, the circuit breaker QF, the information collection device, the communication device and the energy unit vector...

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Abstract

The invention discloses a distributed energy storage aggregation system. The system comprises a micro-grid control unit and an energy unit, wherein the micro-grid control unit comprises a micro-grid control center, an information acquisition device, a communication device, a static switch, a plurality of electric operation switches and a circuit breaker; the load unit and the energy unit are connected with an alternating current bus through an electric operation switch, the alternating current bus is connected with a power grid through a static switch and a circuit breaker; and the micro-grid control center is connected with an electric operation switch, a circuit breaker, an information acquisition device, a communication device and an energy unit vector. The system is advantaged in that reasonably planned distributed energy storage can not only reduce the capacity of distribution network and peak valley arbitrage through peak cutting and valley filling, negative influence of the randomness of distributed energy storage on the safety of the power grid can be made up, and the load unit and the energy unit are correspondingly controlled through different connection states with the power grid, so a purpose of efficient, safe and economical operation is achieved.

Description

technical field [0001] The invention belongs to the technical field of automation control, and in particular relates to a distributed energy storage aggregation system and a control method thereof. Background technique [0002] With the reform and development of the domestic power system, smart grids, new energy power generation, distributed power generation and micro-grids, and electric vehicles are rapidly advancing, and a large number of distributed power sources are connected to the grid. However, the problems of randomness and short-term high load caused by distributed systems require corresponding energy storage technology to provide solutions. Therefore, distributed energy storage technology was born. The main application scenarios of distributed energy storage technology include three aspects: user side, distributed power supply side, and power distribution side. Most of them are introduced in the background of distributed power supply, user side or microgrid. Electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J3/38H02J3/14H02J3/24H02J3/26
CPCH02J3/32H02J3/38H02J3/144H02J3/24H02J3/26H02J2203/10H02J2310/14H02J2310/48Y04S20/242Y04S20/222Y02E40/50Y02B70/30Y02B70/3225
Inventor 郭伟王文清周伟王响成丁明进
Owner 南京国电南自新能源科技有限公司
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