scholarly journals Widen the zero-voltage-switching range and secure grid power quality for an ev charger using variable-switching-frequency single-dual-phase-shift control

2018 ◽  
Vol 4 (1) ◽  
pp. 11-19 ◽  
Keyword(s):  
Phase Shift ◽  
Power Quality ◽  
Switching Frequency ◽  
Dual Phase ◽  
Zero Voltage Switching ◽  
Shift Control ◽  
Zero Voltage ◽  
Voltage Switching

Multiple-Phase-Shift Control for a Dual Active Bridge to Secure Zero-Voltage Switching and Enhance Light-Load Performance

2018 ◽  
Vol 33 (6) ◽  
pp. 4584-4588 ◽  
Author(s):  
Allan Taylor ◽  
Guanliang Liu ◽  
Hua Bai ◽  
Alan Brown ◽  
Philip Mike Johnson ◽  
...  
Keyword(s):  
Phase Shift ◽  
Zero Voltage Switching ◽  
Dual Active Bridge ◽  
Shift Control ◽  
Multiple Phase ◽  
Light Load ◽  
Zero Voltage ◽  
Voltage Switching

A Novel Soft Switching Based Fuzzy Logic Control for Single Phase Inverter

2014 ◽  
Vol 573 ◽  
pp. 143-149
Author(s):  
N. Ismayil Kani ◽  
B.V. Manikandan ◽  
Prabakar Perciyal
Keyword(s):  
Fuzzy Logic ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Soft Switching ◽  
Switching Frequency ◽  
Pwm Inverter ◽  
Zero Voltage Switching ◽  
Control Scheme ◽  
Zero Voltage ◽  
Voltage Switching

—This The Pulse Width Modulation (PWM) DC-to-AC inverter has been widely used in many applications due to its circuit simplicity and rugged control scheme. It is however driven by a hard-switching pulse width modulation (PWM) inverter, which has low switching frequency, high switching loss, high electro-magnetic interference (EMI), high acoustic noise and low efficiency, etc. To solve these problems of the hard-switching inverter, many soft-switching inverters have been designed in the past. Unfortunately, high device voltage stress, large dc link voltage ripples, complex control scheme and so on are noticed in the existing soft-switching inverters. This proposed work overcomes the above problems with simple circuit topology and all switches work in zero-voltage switching condition. Comparative analysis between conventional open loop, PI and fuzzy logic based soft switching inverter is also presented and discussed. Keywords—Zero voltage switching, Inverter, Dc link, PI controller, Fuzzy logic system control ,Modulation strategy, Soft switching

DCM-Based Zero-Voltage Switching Control of a Bidirectional DC–DC Converter With Variable Switching Frequency

2016 ◽  
Vol 31 (4) ◽  
pp. 3273-3288 ◽  
Author(s):  
Tine Konjedic ◽  
Lucijan Korosec ◽  
Mitja Truntic ◽  
Carlos Restrepo ◽  
Miran Rodic ◽  
...  
Keyword(s):  
Switching Control ◽  
Switching Frequency ◽  
Zero Voltage Switching ◽  
Zero Voltage ◽  
Voltage Switching

scholarly journals Output Voltage Control of the SP topology IPT system based on Primary side Controller operating at ZVS

2017 ◽  
Vol 11 (1) ◽  
pp. 71-81
Author(s):  
Supapong Nutwong ◽  
Anawach Sangswang ◽  
Sumate Naetiladdanon ◽  
Ekkachai Mujjalinvimut
Keyword(s):  
Output Voltage ◽  
Coupling Model ◽  
Mutual Inductance ◽  
Switching Frequency ◽  
System Efficiency ◽  
Inductive Power Transfer ◽  
Zero Voltage Switching ◽  
The Cost ◽  
Zero Voltage ◽  
Voltage Switching

This paper presents a technique to control the output voltage of a series-parallel (SP) topology inductive power transfer (IPT) system using only a controller, located on the primary side. This reduces the cost, size, complexity and loss of the system compared to conventional IPT dual-side controllers. An asymmetrical duty cycle control (ADC) of full-bridge inverters was used to control the DC output voltage to its designed value. Additionally, a zero voltage switching (ZVS) operation can be obtained at all power levels by varying the switching frequency of the inverter. Theoretical analysis was performed through a mutual inductance coupling model and verified by computer simulation. Experimental results of the circular magnetic structure IPT system with an adjustable air-gap confirm the validity of the proposed controller. The system efficiency was improved throughout the operation and the improvement became obvious as the output power was decreased.

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