Compact energy storage converter system
An energy storage converter, a compact technology, applied in the field of converters, can solve the problems of low integration and insufficient compact structure, and achieve the effect of compact structure and high integration
Pending Publication Date: 2019-12-24
GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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Problems solved by technology
However, the existing energy storage converter system is not highly integrated and its structure is not compact enough. Therefore, the present invention proposes a compact energy storage converter system
Method used
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Embodiment 1
[0031] The above is the first embodiment of a compact energy storage converter system provided by the embodiment of the present application, and the following is the second embodiment of a compact energy storage converter system provided by the embodiment of the present application. For details, please refer to Figure 1 to Figure 2 .
[0032] The compact energy storage converter system in this embodiment includes: AC / DC power converter, four-winding isolation transformer and filter capacitor; the DC side of the AC / DC power converter is filtered by the DC side capacitor and connected to the energy storage device The four-winding isolation transformer includes a transformer core 5 and a primary winding 1 wound on the transformer core 5, a secondary winding 2 and a filter reactor winding, and the filter reactor winding is wound on the transformer core 5 as The filter reactor of the filter device; the AC output end of the AC / DC power converter is connected to the primary winding ...
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The embodiment of the invention discloses a compact energy storage converter system. The compact energy storage converter system comprises an AC / DC power converter, a four-winding isolation transformer and a filter capacitor. A direct current side of the AC / DC power converter is connected with an energy storage device through a direct current side capacitor. The four-winding isolation transformercomprises a transformer iron core and a primary winding, a secondary winding and a filter reactor winding which are wound on the transformer iron core. An AC (alternating current) output end of the AC / DC power converter is connected with the primary winding, the filter reactor winding is connected with the filter capacitor to form a filtering device on an AC side, and the secondary winding is connected with a low-voltage distribution line through the filtering device. The energy storage converter system has the advantages of higher integration level and more compact structure, can be applied to smaller equipment, and is a high-quality compact energy storage converter system.
Description
technical field [0001] The present application relates to the technical field of converters, in particular to a compact energy storage converter system. Background technique [0002] The low-voltage power distribution system is directly connected to various loads of power users, and its power supply reliability and power quality directly affect the normal power consumption of power users. Therefore, the upgrading and transformation of the complex and huge distribution network is also the focus of power companies. work one. [0003] Electrochemical energy storage systems are applied to low-voltage power distribution networks, which can effectively delay or reduce the expansion and construction of power distribution equipment, provide active and reactive power support, improve power supply reliability and power quality, and realize "peak-shaving and valley-filling" of grid loads, etc. Wait. The electrochemical energy storage system applied to the low-voltage distribution net...
Claims
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IPC IPC(8): H02M7/537H02M1/12H01F27/28
CPCH02M7/537H02M1/126H01F27/28
Inventor 梁崇淦易斌罗敏盛超曾杰
Owner GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD