Energy storage battery interface device
A technology of energy storage batteries and interface devices, which is applied in the field of power systems, can solve problems such as high construction costs and a large number of electrical equipment, and achieve the effect of reducing construction costs and quantity
Pending Publication Date: 2021-06-18
西安西电高压开关有限责任公司 +1
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Problems solved by technology
Obviously, the existing grid-connected energy storage system requires more electrical equipment and higher construction costs
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[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.
[0041] optional, see figure 1 , figure 1 It is a structural block diagram of an energy storage battery interface device provided by an embodiment of the present invention. The energy storage battery interface device provided by the embodiment of the present invention may include: a DC voltage compensator 10, a reactor 20, and a controller (...
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The invention provides an energy storage battery interface device and an energy storage system, which are applied to the technical field of power systems, the energy storage battery interface device comprises a direct current voltage compensator, an electric reactor and a controller, an energy storage battery is connected with a direct current bus through the electric reactor and the direct current voltage compensator, and when the energy storage battery needs to be charged, the controller controls the voltage of the direct current voltage compensator to be reduced, so that charging current flowing into the energy storage battery is generated to charge the energy storage battery; and when the energy storage battery needs to discharge a power grid, the controller controls the voltage of the direct current voltage compensator to be increased, so that the discharge control of the energy storage battery is realized. According to the energy storage battery interface device provided by the invention, a DC / DC converter and a high-frequency transformer in the prior art do not need to be arranged under the condition that the energy storage battery can be normally charged and discharged, so that the number of electrical equipment in an energy storage system is reduced, and the overall construction cost of the energy storage system is reduced.
Description
technical field [0001] The invention belongs to the technical field of power systems, and in particular relates to an interface device for an energy storage battery. Background technique [0002] New energy power generation systems such as wind power generation systems and solar photovoltaic power generation systems are greatly affected by environmental factors, and the power supply has obvious fluctuations and intermittences, which are the main factors that limit the grid-connected operation of new energy power generation systems. With the continuous development of battery energy storage technology in recent years, the combination of battery energy storage system and new energy power generation technology has become one of the effective ways to solve the grid connection problem of new energy power generation system and improve the utilization rate of new energy power generation system. [0003] As an important way of electric energy storage, battery energy storage has the a...
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IPC IPC(8): H02J7/00
CPCH02J7/0068
Inventor 胡丁文曾林翠王莉李亮亮陆平董瑞刘浩锋满新锁
Owner 西安西电高压开关有限责任公司