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Spare electric power supplying system of zero interrupt converting time

A technology of power-off conversion and backup power supply, which is applied in the direction of power network operating system integration, emergency power supply arrangement, information technology support system, etc., and can solve problems such as power outages and time-consuming milliseconds to tens of milliseconds

Active Publication Date: 2007-07-04
ABLEREX ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a backup power supply system with zero power-off switching time, which adopts a mechanical switch between the DC / AC power converter and the load, so as to overcome the aforementioned disadvantages caused by the solid-state switch, while avoiding the mechanical The switching operation takes several milliseconds to tens of milliseconds and causes power failure

Method used

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  • Spare electric power supplying system of zero interrupt converting time
  • Spare electric power supplying system of zero interrupt converting time
  • Spare electric power supplying system of zero interrupt converting time

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Embodiment Construction

[0033] In order to make the above and other objects, features and advantages of the present invention more clearly understood, preferred embodiments of the present invention will be cited below in detail with accompanying drawings.

[0034]As shown in Figure 3, it is the circuit block diagram of the standby power supply system of zero power-off conversion time of the present invention, its input terminal is connected with a first AC power supply 2 and a DC power supply 3, its output terminal is connected with a load 4, the standby power supply The power supply system 30 includes a first switch ( S31 ) 301 , a second switch ( S32 ) 302 and a DC / AC power converter 304 . The function of the DC / AC power converter 304 is to convert the DC power from the DC power source 3 into a second AC power source 305 . Wherein the first switch (S31) 301 is a solid state switch, and the second switch (S32) 302 is a mechanical switch. When the first AC power source 2 is normal, both the first sw...

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PUM

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Abstract

The standby electric power supplies power by its first AC power when the first AC power is at normal condition. When the first AC power is failure the power supply is automatically switched into the second AC power by zero power failure transfer time. When the first AC power is normal the DC / AC power transducer controlling the second AC power outputs current approaching to zero so that its output mechanical type switch can be kept at closing state. Thereby the circulation between the first AC power and DC / AC power transducer will be not generated and the zero power failure transfer time can be implemented.

Description

technical field [0001] The present invention relates to a backup power supply system with zero power-off conversion time, and is particularly concerned with solving the short-term power interruption caused by the output mechanical switching operation of a DC / AC power converter (DC / AC Power converter) at the moment of power source conversion The problem. Background technique [0002] As shown in Fig. 1, it is a circuit block diagram of a standby power supply system (1) with known zero power-off conversion time, its input end is connected to a first AC power source 2 and a DC power source 3, its output end is connected to a load 4, The backup power supply system 10 includes a first switch ( S11 ) 101 , a second switch ( S12 ) 102 and a DC / AC power converter 104 . The function of the DC / AC power converter 104 is to convert the DC power from the DC power source 3 into a second AC power source 105 . When the first AC power source 2 is normal, the first switch (S11) 101 is close...

Claims

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Application Information

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IPC IPC(8): H02J9/06H01H9/56
CPCY02B70/30Y04S20/20
Inventor 冯雅聪吴晋昌周宏亮沈南英黄国芳张耀仁
Owner ABLEREX ELECTRONICS CO LTD