A kind of matrix converter and control method
A matrix converter and switching matrix technology, applied in the field of matrix converters, can solve the problems of input current distortion of switching components, complicated circuit circuits, hindering the normal use of matrix converters, etc., so as to improve reliability and reduce input current distortion. Effect
Active Publication Date: 2022-05-10
ANHUI SCI & TECH UNIV
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Problems solved by technology
However, due to the complexity of the circuit and the large number of switching components, input current distortion is likely to occur, which is a problem that hinders the normal use of the matrix converter.
Method used
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Embodiment 1
[0041] Such as Figure 1-5 As shown, a matrix converter provided by the present invention includes a three-phase input power supply, an input filter, a switch matrix, an output filter, and a ripple power compensation inductor. The three-phase input power supply includes three phases of a phase, b phase and c phase The input power supply, the three input power supplies of phase a, phase b and phase c are connected to the switch matrix through an input filter, and the matrix converter is provided with an output terminal of phase a, an output terminal of phase b and an output terminal of phase c, The output end of the phase A is connected to one end of the output filter circuit, the output end of the B phase is connected to one end of the pulsating power compensation inductor, and the other end of the phase C is connected to the other end of the pulsating power compensation inductance and the other end of the output filter circuit. The switch matrix is a 3X3 switch matrix compo...
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The invention discloses a matrix converter, which includes a three-phase input power supply, an input filter, a switch matrix, an output filter, and a pulsating power compensation inductor, and the three-phase input power supply includes three input terminal power supplies of a phase, b phase and c phase , the three input power supplies of phase a, phase b and phase c are connected to the switch matrix through an input filter, and the matrix converter is provided with an output terminal of phase a, an output terminal of phase b and an output terminal of phase c, and the output terminal of phase a The terminal is connected to one end of the output filter circuit, the B phase output terminal is connected to one end of the pulsating power compensation inductor, and the C phase is connected to the other end of the pulsating power compensation inductance and the other end of the output filter circuit. Advantages of the present invention: the matrix converter provided by the present invention passes through the compensation inductance L C The power decoupling control is carried out, so that the output pulsating power is fully compensated, thereby reducing the input current distortion and improving the reliability of its power supply.
Description
technical field [0001] The invention relates to the technical field of matrix converters, in particular to a matrix converter and a control method. Background technique [0002] The matrix converter can realize AC-AC direct conversion, and has the advantages of adjustable output frequency, high input power factor, and flexible control. The three-phase-single-phase matrix converter (3-1MC) has the advantages of flexible control and no DC energy storage link, and has attracted more and more attention from domestic and foreign scholars in recent years. However, due to the complexity of the circuit and the large number of switching components, input current distortion is likely to occur, which is a problem that hinders the normal use of the matrix converter. Contents of the invention [0003] The object of the present invention is to propose a matrix converter in order to solve the shortcomings in the prior art. [0004] In order to achieve the above object, the present inve...
Claims
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IPC IPC(8): H02M5/293H02M1/12
CPCH02M5/293H02M1/126
Inventor 国海张为民权悦胡福志陈展
Owner ANHUI SCI & TECH UNIV