A New Single-Phase PLL based on Discrete Fourier Transform

Huawu Liu ;   Yongheng Sun ;   Haibing Hu ;   Yan Xing

Tags Single-Phase PLL DFT Harmonics DC component

A new single-phase synchronous reference frame phase-locked loop (SRF-PLL) is proposed in this paper. The key point to implement…

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A Series-LC-Filtered Active Damper for AC Power Electronics based Power Systems

Xiongfei Wang ;   Poh Chiang Loh ;   Frede Blaabjerg ;   Ying Pang

Tags Active Damper Stability Resonance Grid-Connected Converter

This paper proposes an active damper with a series LC-filter for suppressing resonances in an ac power electronics based power system. The…

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Dynamic Analysis and Controller Design for a Center-Point-Clamped AC-AC Converter

Pankaj Kumar Bhowmik ;   Sushma Yellapragada ;   Madhav Manjrekar

Tags center-point-clamped switching pattern capacitor voltage balancing dynamic analysis feedback controller line regulation load regulation

In this paper, a novel topology termed as center-point-clamped converter for ac-ac direct power conversion has been presented.It introduces…

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Improved Capacitance Ratio Optimization Methodology for Stacked Switched Capacitor Energy Buffers

Saad Pervaiz ;   Yu Ni ;   Khurram K. Afridi

Tags ac/dc power conversion buffer circuit dc/ac power conversion energy storage switched capacitor circuit

Stacked switched capacitor (SSC) energy buffers with film or ceramic capacitors can increase the lifetime of single-phase ac/dc converters…

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Simplified Medium/High Frequency Transformer Isolation Approach for Multi-Pulse Diode Rectifier Front-End Adjustable Speed Drives

Harish S. Krishnamoorthy ;   Prasad N. Enjeti ;   Pawan Garg

Tags 12-pulse rectifier medium or high frequency transformer utility grid interface higher power density

This paper proposes a medium/high frequency transformer isolation approach that can serve as a direct replacement to existing bulky line…

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