Publication
June-Hee Lee, June-Seok Lee, and Joon-Hyoung Ryu, "Carrier-Based Discontinuous PWM Method for Five-leg Inverter," IEEE Access, vol. 8, pp. 100323-100336, June 2020.
2020
PEEMS
-
Oct. 4, 2023
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1. Authors: June-Hee Lee, June-Seok Lee, and Joon-Hyoung Ryu
2. Title: Carrier-Based Discontinuous PWM Method for Five-leg Inverter
3. Journal: IEEE Access
4. Vol/no/pp: vol. 8, pp. 100323-100336
5. Date: June 2020
6. Abstract
: This paper proposes a rotation carrier-based discontinuous pulse width modulation (CB-DPWM) method for the five-leg inverter (FLI). The FLI based on two-level topology consists of 10 switching devices for driving dual motors. Therefore, two switching devices can be reduced to compare the configuration using two three-leg inverters for driving dual motors. The proposed pulse width modulation (PWM) method is based on the reference signals which are used in existing carrier-based continuous pulse width modulation (CB-CPWM) method for FLI. In the proposed rotation CB-DPWM method, one of five-leg is periodically clamped to Vdc /2 or − Vdc /2 by adding the offset voltage to the reference voltages of the existing CB-CPWM method. The five reference voltages for all legs are considered to calculate the offset voltage of the proposed rotation CB-DPWM method. Consequently, since the proposed rotation CB-DPWM method has less switching than the existing CB-CPWM, the switching loss can be reduced and it results in the efficiency improvement. Simulation and experimental results confirm the effectiveness and feasibility of the proposed method.
- Oct. 4, 2023 Joon-Hyoung Ryu, June-Hee Lee, and June-Seok Lee, "Switching Frequency Determination of SiC-Inverter for High Efficiency Propulsion System of Railway Vehicle," Energies, vol. 13, no. 19, Sep. 2020.
- Oct. 4, 2023 Ui-min Choi and June-Seok Lee, “Comparative Evaluation of Lifetime of Three-Level Inverters in Grid-Connected Photovoltaic Systems,” Energies, vol. 13, no. 5, Mar. 2020.