Voltage doubler rectifier pfc circuit and its control method, storage medium and inverter air conditioner
A voltage doubling rectification and control method technology, which is applied in the direction of AC motor control, motor control, motor generator control, etc., can solve the problems that the harmonic current cannot meet the standard certification requirements, high countermeasure cost, low power factor, etc., and achieve reduction Harmonic components, simple control, and the effect of improving power factor
Active Publication Date: 2022-02-01
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
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[0028] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary, and the embodiments of the present invention will be described in detail below.
[0029] In the embodiment, the control method of the voltage doubling rectifier PFC circuit is controlled based on the voltage doubling rectification PFC circuit.
[0030] like figure 1 As shown, it is a schematic diagram of the circuit structure of a voltage-doubling rectifier PFC circuit according to an embodiment of the present invention. The voltage-doubling 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, current diversion circuits V01-V04 to avoid reverse conduction of chopper circuit G01, and an inverter drive unit that drives the permanent magnet synchronous motor at the rear stage, wherein the AC volta...
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The present invention proposes 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. The method includes: obtaining a main power supply current value; determining the preset current where the main power supply current value is located Interval: obtain the target pulse chopping parameter according to the preset current interval where the main power supply current value is located; control the voltage doubler rectifier PFC circuit to perform chopping control according to the target pulse chopping parameter. The control method of the voltage doubler rectifier PFC circuit in the embodiment of the present invention obtains the control parameters such as the chopping control start time and the chopping pulse width according to the preset current interval by setting the preset current interval, and realizes the chopping of the chopping circuit. Control to make the current waveform close to the voltage waveform and improve the power factor.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to a control method of a voltage doubling rectification PFC circuit, a computer storage medium, a voltage doubling rectification PFC circuit and a frequency conversion 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 the voltage doubling rectification solution, and the other is to use the active PFC (Power Factor Correction, power factor correction) technology. Active PFC technology is used in The power factor can be corrected while increasing 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 the active PFC technology can meet the standard certification requirements...
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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