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Rapid standby power supply switching apparatus

A technology of fast switching and backup power supply, applied in circuit devices, emergency power supply arrangements, electrical components, etc., which can solve the problems of high cost and poor real-time measurement.

Inactive Publication Date: 2011-11-09
SHANGHAI HUAJIAN ELECTRICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of poor real-time measurement and high cost of existing backup power automatic input devices, the present invention provides a low-cost backup source fast switching device that can quickly switch dual power supply circuits in power systems

Method used

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Embodiment Construction

[0007] The present invention is further described below in conjunction with accompanying drawing:

[0008] See attached figure 1 , 2 , the connection of the backup power fast switching device is to use the CPU unit (1) and the power supply unit (3) to connect with the AC unit (2), the input unit (4), the output unit (5) and the communication unit (6) respectively . The internal connection of the CPU unit is connected by ARM (8) and BUS (9), the BUS (9) is connected to the storage unit (10), the ARM (8) is connected to the display unit (7) through the communication unit (6), and the ARM (8) ) is connected to the PC (11) through the communication unit (6), and the ARM (8) is connected to the analog unit (2) through the signal conditioning unit (12).

[0009] See attached figure 1 , 2 , in the power system, when dual power supply is required, the three-phase voltage and current of the two busbars are connected to the analog unit (2), and the high voltage and high current are...

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Abstract

The invention discloses a rapid standby power supply switching apparatus which comprises: a CPU unit, a simulation unit, a power supply unit, an input unit, an output unit, a communication unit and a display unit. The CPU unit and the power supply unit are directly communicated with other modules except the display unit. The simulation unit transforms input alternating current signals. The CPU unit is connected with the simulation unit, the display unit, the input unit and the output unit so as to measure and control real-time parameters in an electric power system. The rapid standby power supply switching apparatus has the following characteristics of wide measurement range, high accuracy, good real-time performance, wide applicability range, low costs and the like. And the apparatus is convenient for operation and maintenance.

Description

technical field [0001] The invention relates to a fast switching device for a standby power supply combined with an embedded system and a fast Fourier algorithm, and belongs to the field of power supply quality management of a power system. Background technique [0002] The backup power fast switching device is developed on the basis of the backup power automatic input device. The existing backup power automatic input device is often realized by PLC, which has a high cost, and the parameters such as current and voltage of the power system are passed. The time delay of the external analog acquisition card is generally more than 200 milliseconds, and the real-time performance of the system is relatively poor, which can no longer meet the requirements of the rapid development of the power industry. The backup power automatic input device enables the backup power circuit to be switched on when the main circuit power supply fails or fails, but cannot realize the input of the main...

Claims

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Application Information

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IPC IPC(8): H02J9/06
CPCY02B70/30Y04S20/20
Inventor 王晓辉张峰孙旭熹王琦刘尧华
Owner SHANGHAI HUAJIAN ELECTRICAL EQUIP
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