インダクタ転流ソフトスイッチングPWMインバータの転流素子の影響と設定 [in Japanese] Design of Commutation Elements in Inductor Commutation Soft Switched PWM Inverter [in Japanese]
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We have proposed an inductor commutation soft-switched PWM inverter (ICSI) and the carrier frequency modulated ICSI (FM-ICSI) without sensors for the current and voltage. It is realized by connecting a series circuit with an inductor <i>L<sub>ZC</sub></i> and a capacitor <i>C<sub>ZC</sub></i> between the output terminals of the conventional hard switched inverter (CHIS), and by connecting a capacitor <i>C<sub>R</sub></i> in parallel with each main switch. The commutation elements <i>L<sub>ZC</sub></i>, <i>C<sub>ZC</sub></i> and <i>C<sub>R</sub></i> control the magnitude of the circulating current, short current and efficiency of ICSI and FM-ICSI. The circulating current always flows through the main switches and <i>L<sub>ZC</sub></i> and <i>C<sub>ZC</sub></i> from the dc source to realize soft switching. Therefore, in this paper, the relations of the commutation elements and these currents are analyzed and verified experimentally for design of ICSI and FM-ICSI.
- IEEJ Transactions on Sensors and Micromachines
IEEJ Transactions on Sensors and Micromachines 117(12), 1441-1448, 1997-12-01
The Institute of Electrical Engineers of Japan