A black start control system and method for an energy storage system
A technology of energy storage system and control system, which is applied in the direction of electric energy storage system, electric vehicle, transportation and packaging, etc. It can solve the problems of large internal power consumption, high cost of uninterrupted power supply, and multiple installation spaces, so as to improve reliability Effect
Active Publication Date: 2019-02-05
SHENZHEN CLOU ELECTRONICS
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Problems solved by technology
However, due to the large internal power consumption of the control system, the power of the uninterruptible power supply and the capacity of the backup battery are required to be large, which will cause the cost of the uninterruptible power supply to be too high and occupy more installation space
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[0037] 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 conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0038] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0039] Please also see figure 1 , figure 2 and image 3 ,in figure 1 It is a schematic structural diagram of the black start control system of the energy storage system provided by the present invention, figure 2 yes figure 1 The schematic diagram of the structure of the first battery pack in the black start control system shown, image 3 yes figure 1A schematic structural diag...
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The invention relates to the technical field of black-start control of an energy storage system, and provides a system and a method for controlling black start of the energy storage system. The system comprises a power supply supplying electric energy required for the black start and n battery packs for storing the electric energy; each battery pack comprises a battery string serially connected by a plurality of energy storage batteries and a secondary circuit for realizing the black start of the corresponding battery string, the first battery pack, the second battery pack, ... and the n-th battery pack are electrically connected through the secondary circuits in sequence, and the power supply is connected into the secondary circuit of the first battery pack; in the black-start process, the power supply blackly starts the first battery pack, and the first battery pack blackly starts the second battery pack, ... and the n-th battery pack through the secondary circuits in sequence. According to the system and the method, the black-start operation of driving the high-capacity energy storage system is realized by utilizing the low-power power supply.
Description
【Technical field】 [0001] The invention relates to the technical field of black start control of an energy storage system, in particular to a black start control system and method of an energy storage system. 【Background technique】 [0002] Off-grid energy storage power stations are often used to provide electricity in remote areas and islands without mains power. Since there is no external grid to provide working power for the control system of the off-grid energy storage power station, it is necessary to solve the black start problem of the control system. [0003] At present, the common black start scheme of the control system includes: manually connecting the energy storage battery string directly to the energy conversion system (PCS) and using an uninterruptible power supply (UPS power supply) as the working power supply of the control system. [0004] If the method of manually connecting the energy storage battery string directly to the energy conversion system is adop...
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IPC IPC(8): H02J15/00H02J3/28H02J7/00
CPCH02J3/28H02J7/00H02J15/00
Inventor 蒋鹏
Owner SHENZHEN CLOU ELECTRONICS