Intelligent alternative-direct-current integrated power supply system
A power supply system, AC and DC technology, applied in the direction of electrical components, circuit devices, etc., can solve the problems of inconvenient operation and maintenance, reliability cannot be guaranteed, and human resources cannot be deployed in general, so as to achieve convenient signal collection and high power factor , easy to monitor the effect
Inactive Publication Date: 2013-04-17
JIANGSU DATANG KEYUAN ELECTRIC CO LTD
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Problems solved by technology
[0006] (4) Inconvenient operation and maintenance
Station power distribution is managed by different professionals: AC system and DC system are operated and maintained by substation personnel, UPS (uninterruptible power supply) is maintained by automation personnel, communication power supply is maintained by communication personnel, and human resources cannot be deployed overall
Communication power supply, UPS (uninterruptible power supply), etc. are not included in the strict inspection scope of the substation, and the reliability cannot be guaranteed
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[0030] Such as figure 1 and figure 2 As shown, the intelligent AC-DC integrated power supply system includes dual power supply automatic switching device 1, high-frequency rectification module 2, DC / DC DC conversion module 3, inverter module 4, total monitor 12, battery pack 5 and DC feeder unit ; It is characterized in that: after the AC power is switched by the two-way input dual power automatic switching device 1, the grid AC power is sent to the station AC bus 1-1; the station AC bus 1-1, on the one hand, supplies the AC load 7 , on the other hand for the high-frequency rectification module 2; the direct current output by the high-frequency rectification module 2 is sent to the charging bus 2-1 through the output switch, and the charging bus 2-1 provides charging power to the storage battery 5, and the charging method is according to the general monitor 12. The setting is carried out; the charging bus 2-1 supplies power to the closing load 8 to form a closing feed; the ...
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An intelligent alternative-direct-current integrated power supply system comprises a two-power-supply automatic switching device, an inversion module and a main monitor, which form an alternative-current/direct-current uninterrupted power supply system containing a uniform monitoring management function. By adopting a layered distributive architecture, the dispersed measure and control and centralized management can be realized. A communication storage battery group and a charging device are canceled, a direct-current/direct-current (DC/DC) conversion module is directly hung on a charging bus; an uninterrupted power supply (UPS) storage device is canceled, the inversion module is directly hung on the charging bus, and the inversion power supply is adopted for powering important loads such as a computer and accidental illumination; and the secondary power distribution management, the station power supply device intelligent management and state examination are uniformly carried out. The alternating current and direct current, the inversion and the communication power supply system of an entire transformer substation power supply can be uniformly monitored on one platform, the human resource can be uniformly dispatched, and the integral management level of the station power supply can be improved.
Description
technical field [0001] The invention relates to an intelligent AC-DC integrated power supply system, which is suitable for secondary power supply systems of substations, power plants and wind farms. Background technique [0002] Traditional substation power supplies are divided into AC system, DC system, power UPS (uninterruptible power supply), communication power supply system, etc. Various systems adopt decentralized design, independent group screens, and equipment is produced, installed and debugged by different suppliers. The power supply system is also assigned to different professionals for management. This model has the following drawbacks: [0003] (1) The degree of automation of station power supply is not high. The communication protocols of each subsystem provided by different suppliers are generally incompatible, making it difficult to realize network management, and the system lacks a comprehensive analysis platform, which restricts the improvement of manage...
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IPC IPC(8): H02J11/00
Inventor 王春明成彪
Owner JIANGSU DATANG KEYUAN ELECTRIC CO LTD
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