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LI Yudong,LI Kaicun,MA Xinghe.Two-phase Continuous Plugged-type AC Frequency Conversion Power Supply[J].JOURNAL OF POWER SUPPLY,2019,17(5):80-86
Two-phase Continuous Plugged-type AC Frequency Conversion Power Supply
Received:July 18, 2017  Revised:January 20, 2019
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DOI:10.13234/j.issn.2095-2805.2019.5.80
Keywords:continuous-type  plugged-type  STM320F2812  voltage regulation and frequency modulation
Fund Project:the National Natural Science Foundation of China (Grant no.U1404522); Education Department of Henan Natural Science Research Key Project of China (Grant no.13A470342)
        
AuthorInstitutionEmail
LI Yudong School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo , China
LI Kaicun School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo , China 1528680377@qq.com
MA Xinghe School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo , China
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Abstract:
      In light of the disadvantages of the traditional frequency conversion technology, a two-phase continuous plugged-type AC conversion power supply is proposed, which has advantages such as low harmonic content, high power factor, few power devices, simple control and low cost. Based on the plugged-type control strategy, the input of two-phase grid voltage is blocked and spliced to realize frequency modulation. Meanwhile, SPWM chopper modulation technique is used to chop the voltage after blocking, thus realizing voltage regulation. This control strategy was verified by a DS1104 real-time control system, and it was realized by means of STM320F2812. Moreover, the main power circuit and signal conditioning circuit were designed, the relevant frequency conversion experiments were completed, and typical experi-mental results were obtained. The experimental results were consistent with the theoretical analysis, which confirmed the correctness and feasibility of the proposed two-phase continuous plugged-type frequency conversion power supply. At the same time, the research in this paper provides theoretical reference and experimental guidance for the improvement of energy conservation and conversion modes which are suitable for household appliances and small-and medium-capacity exhaust equipment used in factories.
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