Static state change over switch technology-based uninterruptible power supply device
A technology of static switching and switching technology, which is used in electrical components, circuit devices, emergency power supply arrangements, etc.
Inactive Publication Date: 2016-12-21
成都英格瑞德电气有限公司
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to make the uninterruptible power supply equipment freely switch between the bypass power supply and the main power supply, and the purpose is to provide an uninterruptible power supply When it cannot be powered by the main power supply, a static transfer switch is provided so that the normal operation of the uninterruptible power supply equipment will not be affected when the power supply is switched
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[0021] Such as figure 1 As shown, an uninterruptible power supply equipment adopting static transfer switch technology, including a power supply port and a bypass power supply, is characterized in that it also includes:
[0022] Rectification module: the rectification module is connected to the power supply port, and is used to convert the received alternating current into direct current;
[0023] Inversion module: including DC / DC converter, inverter and inverter control unit, the DC / DC converter, inverter and inverter control unit are connected in sequence, the inverter module is connected with the rectification module, the The DC / DC converter adopts a pulse width modulation method, the inverter receives the direct current sent by the rectification module, and converts the direct current into high-frequency and high-voltage alternating current, and the inverter control unit controls the DC / DC converter and the inverter working frequency;
[0024] Battery charger: the batter...
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The invention discloses a static state change over switch technology-based uninterruptible power supply device comprising a power supply port, a bypass power source, a rectification module, an inversion module, a storage battery charger, a storage battery, a static state change over switch module and a display module, wherein the rectification module is used for converting a received alternating current into a direct current, the inversion module receives the direct current sent out by the rectification module, the direct current is converted into a high voltage alternating current, the storage battery charger is connected with the rectification module and is used for receiving the direct current sent out by the rectification module, the storage battery is connected with the storage battery charger and receives the direct current from the storage battery charger, and therefore electric energy can be stored; the storage battery is connected with the inversion module, and the static state change over switch comprises an alternating current switch and a switch control circuit and is used for switching between the bypass power source and the inversion module; the display module is used for monitoring a system operation state in real time, setting system operation parameters and searching current and historic information. According to the uninterruptible power supply device, the static state change over switch is provided when an uninterruptible power source is overhauled or when a main power source cannot supply electricity to the uninterruptible power source, and normal operation of the uninterruptible power supply device cannot be affected during power source switching operation.
Description
technical field [0001] The invention relates to a power supply device, in particular to an uninterrupted power supply device adopting static switching technology. Background technique [0002] According to IDC statistics, 45% of all computer failures are caused by power supply problems; in China, the average number of power outages in large cities is 0.5 times / month, medium-sized cities are 2 times / month, and small cities or villages are 4 times / month. There are at least nine kinds of problems in the power grid: power outages, lightning spikes, surges, frequency oscillations, voltage mutations, voltage fluctuations, frequency drifts, voltage drops, and pulse interference; very necessary. [0003] In addition, sophisticated network equipment and communication equipment do not allow power interruptions. It is self-evident that the network center with the server as the core should be equipped with a UPS. Even if it is an ordinary computer, the data files after three months of ...
Claims
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IPC IPC(8): H02J9/06
CPCH02J9/061
Inventor 胡裕凯
Owner 成都英格瑞德电气有限公司