Multiphase DC-to-AC 1kW Solar Power Inverter

نویسندگان

  • K. H. EDELMOSER
  • L. L. ERHARTT
چکیده

In case of low voltage (12 to 24V) solar and battery powered sinus inverter applications a special converter topology for managing the high input current rating is required. Conventional solutions uses paralleled power MOSFETs to realize high current (several 100A) switches. In this paper a synchronized multi phase PWM concept was chosen to rise the over all efficiency of the inverter. In general, both, the DC-to-DC converter and the mains coupled DC-to-AC inverter can be realized as multi phase stages. In our case only the DC-to-DC converter is realized as a multiphase system. In this paper a 12V DC (input) to 230V AC (output) / 1kW transformer coupled solar inverter is proposed. The development of the inverter is described, realization hints are given and the efficiency of the complete inverter is compared to the conventional solution. Key-Words: sinus inverter, multiphase, PWM, solar inverter

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تاریخ انتشار 2000