A New Single-Phase PLL based on Discrete Fourier Transform
Huawu Liu ; Yongheng Sun ; Haibing Hu ; Yan Xing
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…
A Series-LC-Filtered Active Damper for AC Power Electronics based Power Systems
Xiongfei Wang ; Poh Chiang Loh ; Frede Blaabjerg ; Ying Pang
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…
Dynamic Analysis and Controller Design for a Center-Point-Clamped AC-AC Converter
Pankaj Kumar Bhowmik ; Sushma Yellapragada ; Madhav Manjrekar
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…
Improved Capacitance Ratio Optimization Methodology for Stacked Switched Capacitor Energy Buffers
Saad Pervaiz ; Yu Ni ; Khurram K. Afridi
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…
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
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…
