Samer Saleh Hakami, Laith M. Halabi, and Kyo-Beum Lee, "Dual-Carrier-Based PWM Method for DC-Link Capacitor Lifetime Extension in Three-Level Hybrid ANPC Inverters," IEEE Transactions on Industrial Electronics, in press. -SCI > Paper

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Paper

International Journals Samer Saleh Hakami, Laith M. Halabi, and Kyo-Beum Lee, "Dual-Carrier-Based PWM Method for DC-Link Capacitor Lifetime Extension in Three-Level Hybrid ANPC Inverters," IEEE Transactions on Industrial Electronics, in press. -SCI

2022

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Power converters operate at varying low, medium, and high voltage levels. Large electrolytic capacitors are usually used to sustain the associated

DC-link current and stabilize the DC-link voltage. However, owing to different power converter applications, capacitors are affected by large ripples in

the DC-link current, which increase heat exchange and reduce system reliability and lifespan. In this regard, this study proposes an innovative control

technique for suppressing the ripple in the DC-link current and common-mode voltage. The proposed control technique uses an improved dual-carrier-based pulse width modulation (PWM) technique to create a new switching scheme by selecting the voltage vectors that contribute to the smallest

ripples in the DC-link current according to each sector. Applying the proposed control technique significantly reduces the ripples in the DC-link current and common-mode voltage, which increases the reliability of the system and extends the lifetime of DC-link capacitors. The simulation and

experimental results demonstrate the effectiveness of the proposed control strategy.

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