One-Cycle-Controlled Bidirectional AC-to-DC Converter With Constant Power Factor

Ghodke, D. V.; Sreeraj, E.S.; Chatterjee, Kishore; Fernandes, B. G.

doi:10.1109/tie.2009.2012414

Cited by 58 publications

(41 citation statements)

References 18 publications

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“…In this approach, at first, the limit is set for maximum power ( P max ) transfer as Equation and the second limit is for the planned grid approach that the virtual capacitor must be positive as presented in Equation . To show better energy flow and improve the stability during any transient condition, the C v is tuned at unit power factor . Therefore, the reference virtual capacitor

C {}_{v}^{ref}

of the system is considered as a fixed value …”

Section: Control Approachmentioning

confidence: 99%

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A novel sensorless current shaping control approach for SVPWM inverter with voltage disturbance rejection in a dc grid–based wind power generation system

2020

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A novel sensorless current shaping (CS) control strategy is proposed to avail better power quality (PQ) of a dc grid–based wind power generation system (WPGS) used on a poultry farm by generating an appropriate reference current for space vector pulse width modulation (SVPWM) inverter. The proposed CS strategy also offers adequate control for parallel operation of multiple generators and inverter applications, without requiring voltage and frequency synchronization. Further, to control the poultry farm–based WPGS, a two‐stage control loop is implemented such as energy flow control loop (EFCL) and harmonic control loop (HCL). The first loop is used to regulate the power flow, and the second loop is used to compensate harmonics. A mathematical current decomposition technique is suggested for an appropriate resistance emulation to realize a better power flow, higher harmonic rejection, and better inverter operation. In this planned approach for attaining constant wind speed, an electric ventilation fan in the poultry farm is used. A combined hybrid dc and ac grid approaches are suggested for facilitating variable load integration in a poultry farm–based microgrid system. Moreover, for achieving better power management during the islanded mode of operation, the battery energy storage (BES) device is integrated with the dc grid through a bidirectional converter. The proposed WPGS design and control approach has been simulated through MATLAB/Simulink software under various test conditions, to demonstrate the operational capability, to achieve better PQ, and to increase the flexibility and reliability in the microgrid operation.

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C {}_{v}^{ref}

of the system is considered as a fixed value …”

Section: Control Approachmentioning

confidence: 99%

“…To show better energy flow and improve the stability during any transient condition, the C v is tuned at unit power factor . Therefore, the reference virtual capacitor

C {}_{v}^{ref}

of the system is considered as a fixed value

R_{v} \geq R_{sf}

C_{v} false〉 0

…”

Section: Control Approachmentioning

confidence: 99%

A novel sensorless current shaping control approach for SVPWM inverter with voltage disturbance rejection in a dc grid–based wind power generation system

2020

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“…Although the controller for the modified one-cyclecontrolled bidirectional three-phase ac -dc converter does not require service of a PLL for its operation, it needs to sense instantaneous phase voltages of the utility. As a result the modified OCC-based controller proposed in [28,29] is not a true voltage-sensorless scheme. In order to eliminate voltage sensors of the modified one-cycle-controlled bidirectional converter, the new voltage-sensorless one-cycle-controlled bidirectional ac-to-dc converter is proposed in this paper which is presented in the following sections.…”

Section: Basic and Modified One-cycle-controlled Ac -Dc Convertersmentioning

confidence: 99%

One-cycle-controlled bidirectional three-phase unity power factor ac–dc converter without having voltage sensors

Ghodke

Chatterjee

2012

IET Power Electron.

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One-cycle-controlled ac-to-dc converters exhibit instability in current control at light load conditions and while they try to operate in the inverting mode. A one-cycle control (OCC)-based scheme has been reported in the literature which overcomes the aforementioned limitation. However, the controller for the scheme presented in the literature needs to sense instantaneous phase voltages of the utility. In an effort to dispense with the voltage sensors of the OCC-based bidirectional converter, a voltage-sensorless one-cycle-controlled bidirectional ac-to-dc converter is proposed in this study wherein the information regarding the instantaneous utility voltages are synthesised within the controller and hence they are not required to be sensed. Instantaneous phase voltages of the utility are reconstructed by filtering pertinent switching sequences (gate pulses) of the converter through second-order band-pass filters. Rigorous analysis of the proposed scheme is carried out. Detailed simulation studies are carried out to demonstrate efficacy of the proposed scheme. In order to verify the viability of the scheme detailed experimental studies are carried out on a laboratory prototype developed for the purpose.

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“…This topology takes advantage of boost inductors to shape the input current, and boost the output voltage to values more than the input phase voltages. Numerous control schemes discussed in literature such as hysteresis current control (HCC) [35], sinusoidal pulse-widthmodulation (SPWM) [36], space vector modulation (SVM) [37], sliding mode control (SMC) [38], and one cycle control (OCC) [39], mostly favor minimizing the filter size, whereas some focus on reducing the stresses on circuit elements. Due to the nature of boost inductors, a high power factor is reported for all of these control schemes.…”

Section: A Ac-dc Power Convertersmentioning

confidence: 99%

Comprehensive analysis of high quality power converters for level 3 off-board chargers

Düşmez

Cook

Khaligh

2011

2011 IEEE Vehicle Power and Propulsion Conference

108

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Level 1 and level 2 EV/PHEV charging methods tend to require excess time to reach a full charge, preventing a seemless transition from conventional gasoline vehicles to battery-powered vehicles. The level 3 off-board charging infrastructure will alleviate the down-time required for vehicle charging, and provide an option for quick refueling. It is necessary to choose suitable power electronic interfaces for these chargers to prevent any potential damage to the grid, and optimize system efficiency. This paper introduces level 3 charging along with compatible battery chemistries, and analyzes some high power quality converters based on two different power conversion architectures. In particular, the paper focuses on several isolated and non-isolated DC-DC power converter topologies, and provides a detailed comparison in terms of component size and efficiency.Index Terms-charging infrastructure, DC-DC power converters, electric vehicle, fast charging, soft switching converters.I.

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One-Cycle-Controlled Bidirectional AC-to-DC Converter With Constant Power Factor

Cited by 58 publications

References 18 publications

A novel sensorless current shaping control approach for SVPWM inverter with voltage disturbance rejection in a dc grid–based wind power generation system

A novel sensorless current shaping control approach for SVPWM inverter with voltage disturbance rejection in a dc grid–based wind power generation system

One-cycle-controlled bidirectional three-phase unity power factor ac–dc converter without having voltage sensors

Comprehensive analysis of high quality power converters for level 3 off-board chargers

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