Multi-machine parallel constant-voltage current-sharing control method and device for electric ship chargers
A technology for electric ships and chargers, applied in battery circuit devices, electric vehicle charging technology, circuit devices, etc., can solve problems such as large charging power, increased system loss, uneven current and even circulating current.
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[0061] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.
[0062] figure 1 It is a schematic diagram of an electric ship charging system provided by an embodiment of the present invention.
[0063] Please refer to figure 1 , multiple chargers in the electric ship charging system are connected in parallel on the DC side, connected to the battery of the electric ship, and the AC side is isolated by a transformer. When entering the charging end, in order to protect the battery, th...
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