Multi-winding, divided power supply and forward DC chopping-type monopole multi-input high-frequency chain inverter

A DC chopper and DC chopper technology, applied in the direction of converting DC power input to DC power output, AC power input converting to DC power output, adjusting electrical variables, etc., can solve the problem of low power density, practical limitations, conversion Low efficiency and other problems, to achieve the effect of high output waveform quality, simple circuit topology, and wide application prospects

Active Publication Date: 2018-06-22
QINGDAO UNIV
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  • Application Information

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Problems solved by technology

The distributed power generation system realizes multiple input sources simultaneously supplying power to loads and prioritizing the utilization of energy, which improves the stability and f

Method used

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  • Multi-winding, divided power supply and forward DC chopping-type monopole multi-input high-frequency chain inverter
  • Multi-winding, divided power supply and forward DC chopping-type monopole multi-input high-frequency chain inverter
  • Multi-winding, divided power supply and forward DC chopping-type monopole multi-input high-frequency chain inverter

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Embodiment Construction

[0034] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments of the specification.

[0035] The forward DC chopper type single-stage multi-input high-frequency link inverter with multi-winding group power supply is composed of a combined multi-input single-output isolated bidirectional forward DC chopper that combines multiple isolated input filters and a shared The output filter circuit is connected and constituted. Each input terminal of the combined multi-input and single-output isolated bidirectional forward DC chopper is connected to the output terminal of each input filter in one-to-one correspondence, and the combined multi-input and single-output isolated bidirectional forward DC The output terminal of the chopper is connected with the output filter circuit; the combined multi-input and single-output isolated bidirectional forward DC chopper consists of two identical, respectively ou...

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Abstract

The invention relates to a multi-winding, divided power supply and forward DC chopping-type monopole multi-input high-frequency chain inverter. The circuit structure is formed by connecting a plurality of isolated input filters and a shared output filtering circuit through a combined multi-input and single-output isolation bidirectional forward DC chopper, each input end of the combined multi-input and single-output isolation bidirectional forward DC chopper is connected with an output end of each input filter in one-to-one correspondence, and an output end of the combined multi-input and single-output isolation bidirectional forward DC chopper is connected with the output filtering circuit. The inverter has the characteristics of multi-input power supply electrical isolation, divided power supply, simple circuit topology, monopole power conversion, high power density, high conversion efficiency, high output waveform quality, wide application prospect and the like, an output and an input are in high-frequency isolation, and a key technology is laid for an intermediate- and large-capacity distributed power supply system for achieving combined power supply of various new energy sources.

Description

technical field [0001] The invention relates to a multi-winding group timed power supply forward DC chopper type single-stage multi-input high-frequency link inverter, which belongs to the power electronic conversion technology. Background technique [0002] The inverter is a static converter device that uses power semiconductor devices to convert an unstable and inferior DC power into a stable and high-quality AC power for AC loads or AC grid connection. Inverters with low-frequency electrical isolation or high-frequency electrical isolation between the output AC load or the AC grid and the input DC power supply are called low-frequency link and high-frequency link inverters, respectively. The electrical isolation components mainly play the following roles in the inverter: (1) realize the electrical isolation between the output and input of the inverter, and improve the safety, reliability and electromagnetic compatibility of the inverter operation; (2) realize The matchin...

Claims

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Application Information

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IPC IPC(8): H02M7/797H02M3/335H02M3/337H02J3/38
CPCH02J3/382H02M3/33584H02M3/337H02M7/797H02M1/0083Y02E10/76
Inventor 陈道炼
Owner QINGDAO UNIV
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