MW-class Ni-MH battery energy storage system

Abstract

The utility model discloses an MW-class Ni-MH battery energy storage system, comprising an energy storage management system and a Ni-MH battery energy storage device, wherein the energy storage management system comprises a customer total monitoring system and a plurality of segment monitoring and management systems, and the Ni-MH battery energy storage device is formed by connecting a plurality of groups of Ni-MH battery energy storage units in parallel. Each group of Ni-MH battery energy storage unit is provided with an energy storage unit management module (1). Each control port of the customer total monitoring system is in two-way data transmission connection with one group of interfaces of each segment monitoring and management system by an external bus network, and the other group of control interfaces of each segment monitoring and management system is in two-way connection with the energy storage unit management module (1) by an internal bus network. The energy storage unit management module (1) is in two-way data transmission connection with the Ni-MH battery energy storage units (2). The MW-class Ni-MH battery energy storage system has strong expansibility, can intelligently manage batteries, and efficiently prolongs the use life.

Description

technical field [0001] The invention relates to a megawatt-level nickel-hydrogen battery energy storage system. Background technique [0002] With the improvement of people's living standards and the increasing awareness of environmental protection, people's demand for green power will increase. In recent years, with the rapid development of science and technology, wind energy, solar energy and other new green and environmentally friendly energy sources will continue to be popularized and used. As an "energy storage power station" for peak regulation and valley filling, it will attract development peaks. However, energy storage power stations must use various battery energy storage systems to store electrical energy. At present, there are four disadvantages that are difficult to overcome when using various battery energy storage systems in energy storage power stations. The first is that the conversion efficiency of battery energy storage units in energy storage systems is ...

AI Technical Summary

Problems solved by technology

However, energy storage power stations must use various battery energy storage systems to store electrical energy. At present, there are four disadvantages that are difficult to overcome when using various battery energy storage systems in energy storage power stations. The first is that the conversion efficiency of battery energy storage units in energy storage systems is the most low. At about 70%, there is a large amount of energy loss; the second is to use harmful materials or cause huge pollution to the environment. The battery energy storage unit does not meet environmental protection requirements; the third is that technical limitations make the capacity of the energy storage system small, and the storage of electric energy is limited. It is increasingly unable to meet the actual demand for electric energy use; the fourth is that the battery energy storage unit has a short life and unstable performance, resulting in high procurement costs and operating costs, making the power station's efficiency low

These four shortcomings of the existing technology will seriously restrict the application of energy storage power stations, and cannot better meet the needs of the people's production and life

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