High-efficiency wide-limit programmable inverter power supply device and control method thereof

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, small size, The effect of small inrush current

Active Publication Date: 2017-12-01
山东华天科技集团股份有限公司
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  • Abstract
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  • 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

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  • High-efficiency wide-limit programmable inverter power supply device and control method thereof
  • High-efficiency wide-limit programmable inverter power supply device and control method thereof
  • High-efficiency wide-limit programmable inverter power supply device and control method thereof

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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 wide-limit programmable inverter power supply device and a control method thereof. The device comprises a main loop unit; the input terminal of the main loop unit is connected with commercial power; and the commercial power flows through a filter, a rectifier, and an inverter successively and then the power is transformed into a direct-current signal so as to provide power for a load. The rectifier and the inverter are connected with a programmable control unit. The programmable control unit is configured to preset a voltage effective value, carry out difference processing on the voltage effective value and an effective value fed back by voltage sampling to obtain a voltage error, carry out PI adjustment on the voltage error to generate a voltage amplitude signal with PI adjustment, multiply the voltage amplitude signal with PI adjustment by a sinusoidal wave signal generated by output voltage phase locking of the filter to obtain a sinusoidal modulation voltage signal, subtracting a received voltage instantaneous feedback signal from the sinusoidal modulation voltage signal, carry out PI adjustment, multiplying the adjusted signal with a preset proportionality coefficient to obtain an SPWM voltage pulse width signal. The SPWM voltage pulse width signal is used for driving a switching tube in the rectifier to 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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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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