Design and analysis of high-gain DC–DC chopper topologies for PV-fed BLDC motor drive system (original) (raw)
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S. Prakash, 2024
The rapid adoption of electric vehicle (EV) motors has recently raised numerous issues including high expensive, complex maintenance, and resonance problems. Some of the most effective and most thoroughly investigated EV motors are 3ф induction motors and DC motors. Brushless DC (BLDC) motors for EVs are a more advanced version of the solution used in developing nations. Rising time, steady state, transient, overshoot, settling time and other characteristics of the EV based BLDC motor are difficult to control. A loss of control leads to system instability and reduces the components' lifespan. Thereby, in this work, a grid incorporated PV fed EV based BLDC motor is proposed using DC-DC converter along with hybrid optimized PI controller. An innovative high gain Luo converter has been developed with the goal to deal with the fluctuating behavior of PV systems and it provides the impressive advantages of a high conversion range, reduced voltage stress and outstanding efficiency. To considerably improve the performance of the suggested converter, the reliable hybrid particle swarm-spotted hyena optimized (PS-SHO) proportional integral (PI) controller is invented for controlling the BLDC motor's speed. The grid supplies electricity to the BLDC motor when the PV-based power source isn't accessible. The simulation used to determine the efficacy of the proposed BLDC motor system in MATLAB has confirmed that the methodology provides increased efficacy with a highest efficiency of 97.3% and a lower total harmonic distortion (THD) of 2.02%.
Applied Sciences
Photovoltaic (PV) water pumping systems are becoming popular these days. In PV water pumping, the role of the converter is most important, especially in the renewable energy-based PV systems case. This study focuses on one such application. In this proposed work, direct current (DC) based intermediate DC-DC power converter, i.e., a modified LUO (M-LUO) converter is used to extricate the availability of power in the high range from the PV array. The M-LUO converter is controlled efficiently by utilizing the Grey Wolf Optimizer (GWO)-based maximum power point tracking algorithm, which aids the smooth starting of a brushless DC (BLDC) motor. The voltage source inverter’s (VSI) fundamental switching frequency is achieved in the BLDC motor by electronic commutation. Hence, the occurrence of VSI losses due to a high switching frequency is eliminated. The GWO optimized algorithm is compared with the perturb and observe (P&O) and fuzzy logic based maximum power point tracking (MPPT) algorit...
Analysis of Grid-Interactive PV-Fed BLDC Pump Using Optimized MPPT in DC–DC Converters
Sustainability
In solar photovoltaic (PV) system-based Brushless DC (BLDC) motors for water pumping application, the role of DC/DC converters is very important. In order to extract the maximum power from the PV array, an efficient DC/DC converter is essential at the intermediate stage. In this work, different DC/DC converter topologies suitable for BLDC motors are proposed. The converters are supported by an optimized maximum power point tracking system to provide a reliable operation. Recent optimization algorithms such as fuzzy logic, perturb and observe, grey wolf, and whale optimization are implemented with the PI controller in maximum power point tracking to maximize the conversion efficiency. The obtained results using SEPIC, LUO, and interleaved LUO converters provide a comparative study in the case of converter output, motor parameters, and grid output. The performance analysis on three different converters and multiple optimization methods are carried out. By analyzing the performance of ...
In this paper, the conventional DC-DC converter is replaced with a High Step-up Converter for the Maximum Power Point Tracking (MPPT) in solar power applications. The performance of converter-inverter technology to drive a brushless DC motor is analysed. The converter switching power losses is eliminated by zero-voltage method in this proposed converter. The fuzzy controlled high step-up converter increases the output voltage from the panel compared to the conventional type. The DC to DC converter is operated at an adjustable duty cycle by the fuzzy logic controller. The advantage of the proposed high step-up converter for the MPPT compared to the conventional type are, the output is efficiently increased and regulated by the boost operation. This avoids the parallel buck operation. The ZVS technique further reduces the power loss due to frequent switching. The proposed fuzzy controlled unidirectional operation of the high-step up MPPT converter is analysed. The experimental results are compared for different inputs and analysed.
COMPARATIVE ANALYSIS OF INTERLEAVED BOOST CONVERTER AND CUK CONVERTER FOR SOLAR POWERED BLDC MOTOR
The global electrical energy consumption is ascending rate, in order to meet the growing demand, there is a need to increase the power generation capacity. Nowadays, solar energy plays an important role due to limited availability of fossil fuels. The efficiency of PV is very low and power output mainly depends on solar insulation level. DC-DC converters play a vital role in many applications such as Solar Electric Vehicle, Solar Water Pumping, which mainly required boosting the lower input voltage. In order to boost the input voltage to BLDC motor and its efficient operation, various DC-DC converter topologies are used. This paper deals with two such topologies such as interleaved boost converters and CUK converter. The comparison has been made between these two topologies based on the performance of converters with resistive load, with BLDC motor and the effect of irradiance. The performance of the system has been validated using MATLAB/Simulink
Solar PV Array Employing Zeta Converter Based MPPT Controlled BLDC Motor
Drastic reduction in the cost of power electronic devices and annihilation of the fossil fuels in near future invite to use the solar photovoltaic (SPV) generated electrical energy. The ultimate aim of this paper is to drive a BLBC motor at a high speed with a reduced switching losses which is used fort various purposes including the irrigation pumping systems. To maximize the output power a technique called Maximum Power Point Tracking (MPPT) is utilized in photovoltaic systems regardless of the ceaselessly varying weather conditions electrical at tributes of the PV array output is specifically used to control the DC-DC converter, hence diminishing the intricacy of the system.
The Development of Brushless DC (BLDC) Motor as a Boost Converter on Solar Panel System
Proceedings of the 4th International Conference on Vocational Education and Technology, IConVET 2021, 27 November 2021, Singaraja, Bali, Indonesia, 2022
Electrical energy from solar panels can be used to supply electrical loads directly or stored in batteries. However, the produced electrical power is highly dependent on the absorption of solar energy. The sun's movement also causes variations in the absorption of solar energy by solar panels. This study was aimed to increase the output voltage of the solar panel by applying a Brushless Direct Current (BLDC) motor as a boost converter that could overcome the voltage drop due to variations in the absorption of sunlight intensity. The research method was carried out by developing a series of BLDC motors as an electrodynamic boost converter. Thus, the induced voltage generated by the stator coil when the rotor rotated could be used to increase the output voltage of the solar panel. The results showed that the BLDC motor was able to produce an induced voltage to increase the output voltage of the solar panel. That could continuously supply the electrical load and speed up storing electrical energy into the battery. This research can be used as an alternative source of electrical energy from the potential of solar energy as new renewable energy.
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
Solar Photovoltaic Array Powered BLDC Motor Drive Using LUO Converter with MPPT
Luo converters are a series of new DC-DC stepup converters which were developed using voltage lift technique. This paper deals with the solar-powered BLDC motor simulation with luo convertor as associate intermediate dc-dc boost convertor. Among dc-dc boost converters, luo converters are best matched for application in solar power as they provide higher power density, higher productivity and easy structure with low ripples. The BLDC motor is employed with Voltage Source Inverter (VSI) performing at first harmonic therefore avoiding the frequency shift losses. The progressive electrical phenomenon (Incremental Conductance) rule is employed for tracking the point of maximum power (MPPT). This whole system is displayed in MATLAB/Simulink and results are lodged.