Implementation of Solar Powered BLDC Motor Drive

2020

This paper deals with the utilization of solar PV array to drive the Brushless DC motor for tiller machine application. Solar PV array maximum power extracted using DC-DC converter and maximum power point tracking algorithm. Simple perturb and observe method is employed to achieve the maximum efficiency of the solar PV array. The reason that Brushless dc motor has been chosen for the project is that these motors are cheaper and more robust than the more conventional DC motor. The tiller machine used for small land cultivation and compared to diesel tiller machine or tractor which are low maintenance, long life and more efficient. The renewable energy such that the solar power used to drive the BLDC motor. The simulation and hardware of solar fed BLDC motor has been carried out.

international journal for research in applied science and engineering technology ijraset, 2020

Brushless DC (BLDC) motors are widely used for many industrial applications because of their high efficiency, high torque and low volume. In this project we will implement a controller to control speed of Brushless DC motor Using PWM technique, the average value of the voltage that is applied to the DC Motor is controlled by turning the power on and off at a very high rate. The frequency of this switching will be in the order of few tens of kilo Hertz. Now, the average voltage applied to the DC Motor will depend on what is called as the Duty Cycle of the PWM Signal. Duty Cycle of a PWM Signal is nothing but the ratio of the time for which the signal is ON or HIGH to the total time period of the signal i.e. sum of ON time and OFF time. Duty Cycle is usually expressed in percent and the following figure represents different PWM Signals of a 12V supply with different duty cycles of 0%, 25%, 50%, 75% and 100% respectively

International Journal of Power Electronics and Drive System(IJPEDS), 2017

Stand-alone applications of Photovoltaic (PV) can be found in water pumping systems for rural area. The proper electric motor must be chosen for optimal considerations. One of the modern electric motor called brushless motor (BLDC) can be an alternative for this application although it has complexity in control. Powering such a motor by using electric energy generating by PV modules will be an interesting problem. In this paper, a PV powered BLDC motor system is proposed. The PV modules must produce maximum power at any instant time and then this power must be able to rotate the motor. By combining sequential stator energizing due to a rotor detection and a PWM concept, the speed of BLDC can be controlled. Meanwhile, to get maximum power of PV modules, detection of voltage and current of the modules are required to be calculated. Digital Signal Control (DSC) is implemented to handle this control strategy and locks the width of the PWM signal to maintain the PV modules under maximum power operation. The effectiveness of the proposed system has been verified by simulation works. Finally the experimental works were done to validate

TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES, 2016

This paper focus on a novel operation of a brushless dc (BLDC) motor fed by a proportional integral (PI) controlled buck-boost converter supplemented with a battery to provide the required power to drive the BLDC motor. The operational characteristics of the proposed BLDC motor drive system for constant as well as step changes in dc link voltage of a front end converter controlled by a Xilinx System Generator (XSG) based PI controller for two quadrant operations are derived. Thus a field programmable gate array (FPGA) based PI controller manages the energy flow through the battery and the front end converter. Moreover, speed to voltage conversion logic, made to control the BLDC motor through the PI controller, improves the performance and gives optimum control under the unstable driving situation or varying load condition when the complete system becomes a subject of application to electric vehicles (EVs) and hybrid electric vehicles (HEVs). The dual closed loop control implemented for end to end speed control of the proposed drive system facilitates the system with high accuracy integrated with excellent dynamic and steady state performance. In this paper, the proposed controller was designed for a 5 kW/480 V BLDC motor drive system. The feasibility of the proposed dual loop control topology for the BLDC motor drive system is validated and verified with extensive dynamic simulation in MATLAB/SIMULINK and XSG environment.

The BLDC motor is an electronically commutated dc motor becoming very popular in many applications. There are various speed control methods used for BLDC motor. The performance of BLDC motor drives can be improved using sensored control techniques over sensorless technology. This paper presents Brushless Direct Current motor drive system and its sensored speed control technique with PWM. Advantages and limitations of sensorless techniques are reviewed and then, sensored speed control technique is introduced with their advantages, performance analysis, practical implementation and applications. Torque and speed behavior during clockwise and anticlockwise motion, use of hall sensors to detect rotor position, speed control technique using PWM method are discussed in detail. Detailed hardware design its implementation and experimental results covered. This paper also covers performance analysis of BLDC motor using experimental results.

IRJET, 2022

This paper deals with the development of a solar photovoltaic (PV) based reliable water pumping system. An uninterrupted and full volume of water delivery and hence the reliability is ensured by providing a continuous power grid support to the PV generation unit which is installed for the water pumping. The water pump is powered by a brushless DC (BLDC) motor drive with high efficiency and reduced sensor based. The power transfer from the utility grid to the common DC bus is enabled through controlling a power factor corrected (PFC) buck-boost converter. In order to make the control of the converter simple and cost-effective, it is operated in discontinuous conduction mode (DCM) which requires a single voltage sensing, and also offers an inherent power quality improvement in terms of total harmonic distortion (THD) and unity power factor (UPF). The applicability and reliability of the proposed scheme are demonstrated by the various simulated results using MATLAB/Simulink platform.

2014

Brush Less Direct Current (BLDC) motors are attaining higher priority in industrial automation, computers, aerospace, military, household appliance and traction applications because of its high efficiency, high power density and low maintenance cost. This makes the control of BLDC motor in all the four quadrants very vital. To control a BLDC machine, it is generally required to measure the speed and position of rotor by using the sensor. Using the measured value of rotor position, each inverter phase acting at precise time will be commutated. This paper deals with the digital control of three phase BLDC motor in all four quadrant operation. The motor is controlled in all the four quadrants without any loss of power; in fact energy is conserved during the regenerative period. This energy is stored in a battery storage system during regenerative period and can be fed back to the inverter mains during shortage of supply from the source. The FPGA controller is implemented which is more ...

International Journal of Engineering Sciences & Research Technology, 2014

This Paper deals with analysis of efficient BLDC motor drive with various converter systems. Performance of the drive system is compared based on THD and PF at the AC mains with the following converter topology: Conventional DC-DC converter, SEPIC and CSC converter. The complete drive system is designed and modeled in MATLAB/Simulink environment for speed control over a wide range.

International Journal of Electrical and Computer Engineering (IJECE), 2018

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. 1. INTRODUCTION Development in power electronic section of electrical engineering has led to developments in special machines and one such kind is brushless DC (BLDC) motor. The construction of brushless DC motor is quiet similar to that of conventional DC motor but the absence of brush-commutator assembly makes BLDC motor more efficient in operation. The BLDC motor is electrically commutated by power switches instead of brushes. Compared with a brushed DC motor or an induction motor, the BLDC motor has many advantages: Higher efficiency and reliability, Lower acoustic noise, Smaller and lighter construction, Greater dynamic response, Better speed versus torque characteristics, higher speed range, longer life. A rotor consists of a shaft and a hub with permanent magnets arranged to form between two to eight pole pairs that alternate between north and south poles [1], [2]. There are multiple magnet materials, such as ferrous mixtures and rare-earth alloys. Ferrite magnets are traditional and relatively inexpensive, though rare-earth alloy magnets are becoming increasingly popular because of their high magnetic density. The higher density helps to shrink rotors while maintaining high relative torque when compared to similar ferrite magnets. BLDC motor consists of an internal shaft position sensor which initiates the control of phase excitation and time of energization. Conventional DC motor employs mechanical commutator but BLDC motor instead uses electronic commutator for its commutation making BLDC a maintenance-free motor. The two types of BLDC motor are classified based on their shape of back-EMF viz., trapezoidal and sinusoidal motors [3], [4]. The back EMF of trapezoidal BLDC motor is trapezoidal in shape and to obtain trapezoidal