Novel low-voltage booster device and configuration method
A booster device, low voltage technology, applied in the output power conversion device, electrical components, AC power input conversion to AC power output and other directions, can solve the problems of heavy load, long power supply radius, low terminal voltage, etc., to reduce The effect of line loss, improving voltage qualification rate, and convenient installation
Inactive Publication Date: 2016-11-23
STATE GRID CORP OF CHINA +1
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[0003] Aiming at the deficiencies in the prior art, the present invention provides a new type of low-voltage booster device and a configuration method of the device, the purpose of which is to solve the problem of low terminal voltage caused by long power supply radius and heavy load at the end of the low-voltage line
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[0023] The technical solutions in the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0024] A new type of low-voltage boosting device, including a casing, and a low-voltage boosting module is installed in the casing; the low-voltage boosting module includes an input terminal and an output terminal, which are used for externally connecting a phase line and a neutral line; figure 1 As shown, the low voltage boost module includes an input phase monitoring unit, a CPU control unit, an IGBT drive circuit, an IGBT inverter circuit, an inverter shaping filter circuit, a compensation transformer, a rectification filter circuit, an output current monitoring unit, and a sampling feedback unit and display unit; the input of the input phase monitoring unit is connected to the corresponding input terminal of the neutral line and the phase line to detect the phase information and transmit it to the CPU control unit; the outp...
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The invention provides a novel low-voltage booster device which comprises a shell. The novel low-voltage booster device is characterized in that a low-voltage booster module is installed in the shell; the output of a CPU (central processing unit) control unit of the low-voltage booster module is connected with the input of an IGBT (insulated gate bipolar translator) drive circuit and outputs control signals controlling the inverter mode of an IGBT inverter circuit; the output of the IGBT drive circuit is correspondingly connected with IGBT control ends in the IGBT inverter circuit; the output of the IGBT inverter circuit is connected with the input of an inverter plastic filter circuit; the output of the inverter plastic filter circuit is connected with the primary side of a correction transformer; the input end of the secondary side of the correction transformer is connected with the in-phase input connector in phase line with an input phase monitoring unit while and the output end of the secondary side of the correction transformer is connected with a phase-line output connector which is correspondingly in-phase with the output end of the secondary side of the correction transformer; the input of a rectifier filter circuit is connected with a zero-line output connector and the phase-line output connector which is correspondingly in-phase with the rectifier filter circuit. The novel low-voltage booster device has the advantages that voltage qualified rate is increased, and line loss is reduced.
Description
technical field [0001] The invention relates to the field of power equipment, in particular to a low-voltage booster in the field of power electronics. Background technique [0002] At present, domestic and foreign studies on low-voltage problems in distribution networks are mainly carried out from four aspects: substation outlets, distribution medium-voltage lines, distribution transformer outlets, and low-voltage line terminals. The traditional low-voltage control at low-voltage line terminals is mainly through Add reactive power compensation devices and dynamic voltage and current regulators at the end of the line for treatment. For my country's rural power grid, due to the complex structure of the rural power grid, various line types, scattered users, and long power supply lines, the terminal voltage is low due to the excessive voltage drop on the line; especially during the peak period of electricity consumption , the back-end user voltage may be as low as 110-150V or l...
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IPC IPC(8): H02M5/458H02M7/537
CPCH02M5/458H02M7/537
Inventor 付克勤周伟
Owner STATE GRID CORP OF CHINA