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A high-efficiency and wide-ranging programmable inverter power supply device and its control method

An inverter power supply, programming control technology, applied in the output power conversion device, electrical components, AC power input conversion to AC power output and other directions, can solve the problem of high line impedance and can not start, achieve light weight, load adaptability Strong, high-precision effects

Active Publication Date: 2019-08-27
山东华天科技集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the deficiencies of the prior art, the present invention provides a high-efficiency and wide-ranging programmable inverter power supply device, which is suitable for special industries such as exploration or measurement in remote areas, such as precision equipment for mobile base station operations and other power supply quality For equipment with high requirements, for problems such as high line impedance and failure to start, provide electrical equipment with programmable amplitude and frequency sine waveforms to meet the use of various harsh environments

Method used

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  • A high-efficiency and wide-ranging programmable inverter power supply device and its control method
  • A high-efficiency and wide-ranging programmable inverter power supply device and its control method
  • A high-efficiency and wide-ranging programmable inverter power supply device and its control method

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Embodiment Construction

[0061] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0062] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0063] The high-efficiency and wide-ranging programmable inverter power supply device of the present invention i...

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Abstract

The invention discloses a high-efficiency and wide-range programmable inverter power supply device and a control method thereof. Among them, the device includes a main circuit unit, the input end of which is connected to the mains, and the mains is converted into a DC signal by a filter, a rectifier and an inverter in turn to supply power to the load; the rectifier and the inverter are respectively connected to the programmable control unit; The programmable control unit is configured to preset the effective value of the voltage, and make a difference between it and the effective value of the voltage sampling feedback to obtain the voltage error; adjust the voltage error through PI to generate a PI adjusted voltage amplitude signal; adjust the PI voltage The amplitude signal is multiplied by the sine wave signal generated by the phase-locked output voltage of the filter to obtain a sine modulation voltage signal; the sine modulation voltage signal is subtracted from the received voltage instantaneous feedback signal, and then adjusted by PI and pre-set Multiply the proportional coefficients to obtain the SPWM voltage pulse width signal; the SPWM voltage pulse width signal is used to drive the switching tube in the rectifier, and finally generate a voltage waveform with a preset amplitude and frequency.

Description

technical field [0001] The invention belongs to the field of power supplies, and in particular relates to a high-efficiency and wide-ranging programmable inverter power supply device and a control method thereof. Background technique [0002] Special industries such as exploration or measurement in outdoor remote areas, such as precision equipment for mobile base station operations, have high requirements for power supply voltage amplitude, frequency, and waveform distortion. Long, resulting in low terminal power supply voltage, poor power quality, and power supply quality cannot be guaranteed. When the backup generator is used for power supply, the power supply frequency is unstable, which affects the use of precision equipment. Due to the high impedance of the line, the equivalent impedance of the line reaches 4-6 ohms. When the starting current is large when the equipment is started, the voltage drop of the line will increase, and the voltage drop at the end of the line w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M5/458
CPCH02M5/4585H02M1/0012
Inventor 王德涛王建马海刚葛方甫
Owner 山东华天科技集团股份有限公司
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