Power-Quality Improvement in PFC Bridgeless SEPIC-Fed BLDC Motor Drive

2013 ◽  
Vol 14 (3) ◽  
pp. 285-296 ◽  
Author(s):  
Bhim Singh ◽  
Vashist Bist
Keyword(s):  
Power Quality ◽  
Low Frequency ◽  
Speed Control ◽  
Current Mode ◽  
Voltage Source ◽  
Motor Drive ◽  
Bldc Motor ◽  
Switching Losses ◽  
Wide Range ◽  
International Power

Abstract This article presents a design of a power factor correction (PFC)-based brushless DC (BLDC) motor drive. The speed control of BLDC motor is achieved by controlling the DC link voltage of the voltage source inverter (VSI) feeding BLDC motor using a single voltage sensor. A front-end bridgeless single-ended primary inductance converter (SEPIC) is used for DC link voltage control and PFC operation. A bridgeless SEPIC is designed to operate in discontinuous inductor current mode (DICM) thus utilizing a simple control scheme of voltage follower. An electronic commutation of BLDC motor is used for VSI to operate in a low-frequency operation for reduced switching losses in the VSI. Moreover, a bridgeless topology offers less conduction losses due to absence of diode bridge rectifier for further increasing the efficiency. The proposed BLDC motor drive is designed to operate over a wide range of speed control with an improved power-quality at the AC mains under the recommended international power-quality standards such as IEC 61000–3-2.

An Improved Power Quality BIBRED Converter-Based VSI-Fed BLDC Motor Drive

2014 ◽  
Vol 15 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Bhim Singh ◽  
Vashist Bist
Keyword(s):  
Power Quality ◽  
Pulse Width Modulation ◽  
Supply Voltage ◽  
Speed Control ◽  
Voltage Source ◽  
Motor Drive ◽  
Bldc Motor ◽  
Brushless Dc ◽  
Switching Losses ◽  
Wide Range

Abstract This paper presents an IHQRR (integrated high-quality rectifier regulator) BIBRED (boost integrated buck rectifier energy storage DC-DC) converter-based VSI (voltage source inverter)-fed BLDC (brushless DC) motor drive. The speed control of BLDC motor is achieved by controlling the DC link voltage of the VSI using a single voltage sensor. This allows VSI to operate in fundamental frequency switching mode for electronic commutation of BLDC motor which reduces the switching losses due to high-frequency switching used in conventional approach of PWM (pulse width modulation)-based VSI-fed BLDC motor drive. A BIBRED converter is operated in a dual-DCM (discontinuous conduction mode) thus using a voltage follower approach for PFC (power factor correction) and DC link voltage control. The performance of the proposed drive is evaluated for improved power quality over a wide range of speed control and supply voltage variation for demonstrating the behavior of proposed drive. The power quality indices thus obtained are within the recommended limits by international PQ (power quality) standards such as IEC 61000-3-2.

scholarly journals A novel technique of dynamic speed control for buck boost converter fed BLDC motor drive

2018 ◽  
Vol 7 (2.21) ◽  
pp. 190
Author(s):  
K Sasikala ◽  
R Krishna Kumar
Keyword(s):  
Power Quality ◽  
Low Cost ◽  
Speed Control ◽  
Boost Converter ◽  
Voltage Source ◽  
Motor Drive ◽  
Prototype Model ◽  
Bldc Motor ◽  
Novel Technique ◽  
Switching Losses

This paper mainly impacts on a bridgeless buck boost converter fed Brush Less Direct Current (BLDC) motor drive with Power Factor Correction (PFC) which is low cost and well suitable for low power applications. The speed of the BLDC motor is controlled by adjusting the Voltage Source Inverter’s dc link voltage which is then employed along with a distinct voltage sensor. Thus the fundamental frequency switching of VSI operation becomes quite ease with BLDC motor’s electronic turn off which provides minimal switching losses. An acceptable performance is attained for speed control having power quality indicators within the allowable limits. To end with the suggested drive’s prototype model has been implemented to evaluate and confirm the suggested BLDC motor drive’s performance for various speed controls with enhanced AC main’s power quality. 

A Soft Switching Control Strategy Based on Interleaved Boost Converter for BLDC Motor Drive

2015 ◽  
Vol 6 (3) ◽  
pp. 516
Author(s):  
V. Ramesh ◽  
Y. Kusuma Latha
Keyword(s):  
Control Strategy ◽  
Torque Ripple ◽  
Boost Converter ◽  
Soft Switching ◽  
Motor Drive ◽  
Bldc Motor ◽  
Switching Losses ◽  
Wide Range ◽  
Interleaved Boost Converter ◽  
Auxiliary Circuit

In this paper, Zero-Voltage-Transition (ZVT) two-cell interleaved boost Power Factor Correction (PFC) converter for voltage source Inverter (VSI) fed permanent magnet brushless DC motor (PMBLDCM) drive has been proposed Scheme reduce the torque ripple of BLDC motor drive and also reduce the switching losses of VSI for Which an auxiliary circuit is designed and added to the interleaved boost converter.  For achieving soft switching, only one switch is used in auxiliary circuit which reduces the torque ripple and switching losses. In this proposed control strategy, the DC link voltage is controlled with interleaved boost converter which is proportional to the desired speed of the BLDC motor. In this paper, six switch and four switch VSI is also implemented with interleaved boost converter topology. A comparison is made between the six switch and Four Switch VSI fed PMBLDC Motor drive and Torque Analysis as been done. To validate the proposed work, results are presented. The results showed that proposed converter control strategy operating under soft switching mode improves the efficiency of the drive system with PFC feature in wide range of the speed control.

Comparative Analysis of Fixed Speed & Variable Speed Response of PFC Zeta Converter Fed PMSM Drive Using PI Controller

2014 ◽  
Vol 573 ◽  
pp. 7-12 ◽  
Author(s):  
R. Saravanan ◽  
N. Chandrasekaran
Keyword(s):  
High Efficiency ◽  
Speed Control ◽  
Current Mode ◽  
Voltage Source ◽  
Variable Speed ◽  
Sensing Element ◽  
Wide Range ◽  
Bridge Rectifier ◽  
Voltage Follower ◽  
Electro Magnetic

In several PWM DC-DC converter topologies, the controlling switches are operated in switch mode wherever they're needed to conduct the whole load current on and off throughout every switching cycle. Recently there is an enlarged interest within the use of resonant kind DC-DC converters due to the benefits of high efficiency, small size, lightweight, reduced Electro Magnetic Interference (EMI) and low component stresses. A novel PFC (Power factor Corrected) converter feeding a PMSM drive employing a single voltage sensing element is proposed for variable speed applications. It consists of single phase supply followed by uncontrolled bridge rectifier and a Zeta DC-DC converter is employed to regulate the voltage of a DC link capacitance that is lying between the Zeta converter and a VSI (Voltage source Inverter). The voltage of a dc-link capacitor of zeta converter is controlled to realize the speed control of PMSM Drive. The zeta converter is functioning as a front end device operating in DICM (Discontinuous inductor Current Mode) and therefore employing a voltage follower. Using MATLAB/ Simulink 7.13 environment the model can be simulated to achieve a wide range of speed control.

Z-SOURCE NEUTRAL POINT CLAMPED INVERTER FED MOTOR DRIVE

2015 ◽  
Vol 76 (12) ◽  
Author(s):  
B. Karunamoorthy ◽  
D. Somasundareswari
Keyword(s):  
Output Voltage ◽  
High Efficiency ◽  
Speed Control ◽  
Stage Structure ◽  
Neutral Point ◽  
Voltage Source ◽  
Bldc Motor ◽  
Wide Range ◽  
Boost Factor ◽  
Bus Voltage

Z-source inverter is a recently invented new power conversion concept mainly developed for fuel vehicular applications by advantageously utilizing the shoot through states to boost the DC-bus voltage. The impedance network contains two inductors and three diodes and is connected in between the DC source and inverter bridge. This shoot through state provides the unique buck-boost feature to the DC-link voltage and hence the AC output voltage of the inverter. By varying the boost factor and modulation index, the output AC voltage can be maintained at any value between zero and infinity regardless of DC voltage giving a wide range of voltage. Thus Z-source inverter overcomes the conceptual and theoretical barriers and limitations of the traditional inverters and provides high efficiency single stage structure for buck and boost operation. Previous publications have shown speed control of BLDC motor by controlling the DC link voltage of voltage source inverter using bridgeless buck boost converter. This paper presents the speed control of BLDC motor by controlling the shoot through states of Z-source neutral point clamped inverter using a space vector modulation technique which possess advantage of reduced harmonics with boosted output voltage. The proposed technique is demonstrated in simulation by using MATLAB software.

Power Quality Analysis of Vienna Rectifier for BLDC motor Drive Application

2016 ◽  
Vol 7 (1) ◽  
pp. 7 ◽  
Author(s):  
K. Srinivasan ◽  
S. Vijayan ◽  
S. Paramasivam ◽  
K. Sundaramoorthi
Keyword(s):  
Power Quality ◽  
Power Factor ◽  
Quality Analysis ◽  
Control Technique ◽  
Motor Drive ◽  
Switching Frequency ◽  
Bldc Motor ◽  
Front End ◽  
Vienna Rectifier ◽  
Wide Range

This paper presents the power quality improvements for a BLDC driver using Vienna rectifier as front end converter. The major drawbacks in the BLDC motor drive and non linear load applications are the line pollution and depreciation of the power factor. The conventional power factor correction method is not economical and efficient. It requires bulky components as load changes and produce high THD and less Power factor. The front end converter of BLDC bridge inverter drive is proposed by the Vienna rectifier, which can contribute more significantly in improving the power factor and reduce the line pollution. The Vienna rectifier topology is controlled by the constant switching frequency control technique for wide range of load variation and it reduces the THD, improve the power factor and provide a steady DC link voltage to the bridge inverter to drive the BLDC motor. The design calculation and performance characteristics of BLDC motor and Vienna rectifier are verified by using Matlab simulation.

scholarly journals An Internal Current Controlled BLDC Motor Drive Supplied with PV Fed High Voltage Gain DC-DC Converter

2018 ◽  
Vol 8 (2) ◽  
pp. 1262
Author(s):  
G. G. Raja Sekhar ◽  
Basavaraja Banakara
Keyword(s):  
Control Method ◽  
Speed Control ◽  
High Gain ◽  
Current Control ◽  
Operating Conditions ◽  
Motor Drive ◽  
Bldc Motor ◽  
Pv System ◽  
Switching Losses ◽  
Current Controller

The paper presents an efficient speed control of brushless DC (BLDC) motor drive for photo-voltaic (PV) system fed system. A high-gain DC-DC converter is employed in the system to boost the PV system low output voltage to a level required for the drive system. High-gain DC-DC converter is operated in closed-loop mode to attain accurate and steady output. The converter (VSI) for BLDC is switched at fundamental frequency and thus reducing high frequency switching losses. Internal current control method is developed and employed for the speed control of PV fed BLDC motor. The appropriateness of the internal current controller for the speed control of PV fed BLDC motor is verified for increamental speed with fixed torque and decreamental speed with fixed torque operating conditions. The system is developed and results are developed using MATLAB/SIMULINK software

scholarly journals Performance evaluation of multiple lift push-pull LUO converters for automotive applications

2018 ◽  
Vol 7 (2.20) ◽  
pp. 174
Author(s):  
S Srinivasan ◽  
Dr T. S. Sivakumaran
Keyword(s):  
High Power ◽  
Power Efficiency ◽  
Voltage Source ◽  
Motor Drive ◽  
Bldc Motor ◽  
Automotive Applications ◽  
Environment Friendly ◽  
Brushless Dc ◽  
Dc Motors ◽  
Wide Range

Solar energy power generation has several advantages such as low maintenance costs; environment friendly, no rotating parts in construc-tion gives no noise. In recent years, solar power is used to charge the batteries of electric vehicles and instead of internal combustion En-gines the Electric motors such as DC motors, Brushless DC (BLDC) motors are used for driving the vehicles. The Multiple Lift Push-Pull Luo (MLPPL) converter is a DC-DC converter, which combines both switched capacitor and voltage lift techniques. Further, the MLPPL converters can be used in high power density, high power efficiency and voltage transfer gain applications. In this work, a MLPPL convert-er integrated with voltage source inverter (VSI) loading BLDC motor drive for automotive applications have been proposed. Further, the simulation of the proposed design has been carried out using MATLAB/Simulink Software. The torque of the BLDC motor has been varied and the performance of the MLPPL converter has been analyzed. Results demonstrate that the proposed design is capable to operate over a wide range of torque, which fulfills the application of Electric Vehicle.  

Analysis of Variable Speed PFC Chopper Fed BLDC Motor Drive

2015 ◽  
Vol 5 (3) ◽  
pp. 326
Author(s):  
A Jeya Selvan Renius ◽  
K Vinoth Kumar
Keyword(s):  
Power Quality ◽  
Voltage Source ◽  
Brushless Dc Motor ◽  
Motor Drive ◽  
Variable Speed ◽  
Improved Method ◽  
Matlab Simulink ◽  
Brushless Dc ◽  
Switching Losses ◽  
Power Quality Improvement

<p>This paper provides the detailed analysis of the DC-DC chopper fed Brushless DC motor drive used for low-power applications. The various methods used to improve the power quality at the ac mains with lesser number of components are discussed. The most effective method of power quality improvement is also simulated using MATLAB Simulink. Improved method of speed control by controlling the dc link voltage of Voltage Source Inverter is also discussed with reduced switching losses. The continuous and discontinuous modes of operation of the converters are also discussed based on the improvement in power quality. The performance of the most effective solution is simulated in MATLAB Simulink environment and the obtained results are presented.</p>

Sign in / Sign up

Export Citation Format

Share Document