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Voltage multiplying rectifying PFC circuit and control method thereof, storage medium and inverter air conditioner

A technology of voltage doubling rectification and control method, applied in AC motor control, motor control, motor generator control and other directions, can solve the problems of harmonic current not meeting standard certification requirements, low power factor, and high countermeasure cost, and reduce harmonic current. The effect of wave component, harmonic current satisfaction, and simple control

Active Publication Date: 2020-11-13
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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Problems solved by technology

[0003] However, the disadvantage of direct voltage doubling rectification is that the power factor is too low, and the harmonic current cannot meet the standard certification requirements; although the harmonic current of active PFC technology can meet the standard certification requirements, the loss is large, and the solution cost and EMC ( Electromagnetic Compatibility, Battery Compatibility Directive) countermeasures are costly

Method used

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  • Voltage multiplying rectifying PFC circuit and control method thereof, storage medium and inverter air conditioner
  • Voltage multiplying rectifying PFC circuit and control method thereof, storage medium and inverter air conditioner
  • Voltage multiplying rectifying PFC circuit and control method thereof, storage medium and inverter air conditioner

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary, and embodiments of the present invention are described in detail below.

[0029] In the embodiment, the control method of the voltage doubler rectifier PFC circuit is based on the voltage doubler rectifier PFC circuit. In order to clearly illustrate the control method of the voltage doubler rectifier PFC circuit, the following briefly introduces the voltage doubler rectifier PFC circuit.

[0030] Such as figure 1 As shown, it is a schematic diagram of the circuit structure of a voltage doubler rectifier PFC circuit according to an embodiment of the present invention. The voltage doubler rectifier circuit includes a reactor such as L01, a rectifier circuit V05-V08, an AC voltage detection unit V01, and a chopper circuit after L01 G01 and its drive circuit, the diversion circuit V01-V04 to avoid reverse conduction of the chopper c...

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Abstract

The invention provides a control method of a voltage multiplying rectifying PFC circuit, a computer storage medium, the voltage multiplying rectifying PFC circuit and an inverter air conditioner. Themethod comprises the steps: obtaining a main power supply current value; determining a preset current interval where the main power supply current value is located; obtaining a target pulse chopping parameter according to a preset current interval where the main power supply current value is located; and controlling the voltage multiplying rectifying PFC circuit to perform chopping control according to the target pulse chopping parameter. According to the control method of the voltage multiplying rectifying PFC circuit, the preset current interval is set, the chopping control starting time, the chopping pulse width and other control parameters are obtained according to the preset pulse number, chopping control over the chopping circuit is achieved, the current waveform is close to the voltage waveform, and the power factor is increased.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a control method for a voltage doubler rectifier PFC circuit, a computer storage medium, a voltage doubler rectifier PFC circuit and an inverter air conditioner. Background technique [0002] In the 110V power supply system, there are two common solutions for inverter air conditioners, one is to directly perform voltage doubler rectification, and the other is to use active PFC (Power Factor Correction, power factor correction) technology, active PFC technology in Power factor correction can be performed while boosting the output voltage. [0003] However, the disadvantage of direct voltage doubling rectification is that the power factor is too low, and the harmonic current cannot meet the standard certification requirements; although the harmonic current of active PFC technology can meet the standard certification requirements, the loss is large, and the solution cost an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/42H02M7/217H02M1/14H02P27/06H02P25/024H02P21/00F24F11/88F24F11/64F24F11/61
CPCH02M1/42H02M7/217H02M1/14H02P27/06H02P25/024H02P21/0003F24F11/88F24F11/64F24F11/61H02P2207/05Y02B70/10
Inventor 王斌
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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