International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 04 | Apr 2024
p-ISSN: 2395-0072
www.irjet.net
Speed Control of BLDC Motor using PID Controller in Matlab CH.B. Srikanth M.tech (Phd),Y. Jagadeesh, B.Balaji Arun, P.Vijay, M. Jyoshna CH.B.Srikanth M.tech (Phd), professor, Dept. of EEE, Visakha institute of engineering and technology, India. Y. Jagadeesh, student, Dept. of EEE, Visakha institute of engineering and technology, India B. Balaji Arun, student, Dept. of EEE, Visakha institute of engineering and technology, India P. Vijay, student, Dept. of EEE, Visakha institute of engineering and technology, India. M. Jyoshna, student, Dept. of EEE, Visakha institute of engineering and technology, India. ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - This project presents the design and
their high efficiency, reliability, and controllability. Unlike traditional brushed motors, BLDC motors rely on electronic commutation, making them suitable for applications requiring precise speed control. Among the various methods employed for regulating BLDC motor speed, A BLDC motor is a special type of DC motor that does not apply a brush for transport, instead an electronic process system is used for this purpose. The BLDC motor is usually a synchronous motor composed of a trapezoidal back EMF waveform and a permanent magnet. The current trend shows that high-performance BLDC motor technologies are widely used for global industrial applications and variable speed drives in electric vehicles. In fact, these types of motors depend on its control circuit. These types of motors rely on its control circuit and still developing a high performance circuit is a challenging task for researchers. The structure of the BLDC motor tuning control project selection, modelling simulation and so on. The design structure of a BLDC motor is a complex task and depends on many issues such as project selection, modeling, simulation, etc. In terms of the rapidity framework of the BLDC motor, a host of modern control solutions have been proposed.
implementation of a speed control system for a Brushless DC Motor (BLDC) using PID Controller . The objective is to regulate the speed of the BLDC Motor efficiently and accurately, whereas the PID serves as the executing unit, In which the VSC converter employed to provide the appropriate voltage input to the BLDC Motor. For the steady state behavior of the motor we use PID Controller, which in general is tuned to achieve desired speed responses. The total integration of all these components results to achieve the precise speed control for the BLDC Motor. The experimental results validate the proposed approaches performance and it is potential for various industrial and automation applications. The suitability of proposed system at practical operating conditions is demonstrated through simulation results using MATLAB/ Simulink followed by an experimental validation. Key Words: Burshless DC motor (BLDC), PID Controller, VSC , Modelling
1.INTRODUCTION
1.2 Proposed controller
In this modern Industrial era the electrical motors plays a major key role in industrial development, As we know that motors are classified according power fed to them as Ac motors, Dc motors. One of the most important motors in commercial segment is BLDC motor which is usually known as electronically commutated motor ,The BLDC motors works on both low voltage DC, high voltage AC. BLDC motors are increasing its popularity in automotive sector for light load vehicles like two wheeler, cars which are most efficient and reliable as there is no mechanical commutator.
The methods used for the speed control of the BLDC Motor use the dual closed loop speed control in which the one loop is used to limit the current or govern the current control or for the control of the gate pulses. The other loop is for speed control which is used to get the desired speed as per the requirement. The required speed can be either set as an integer value or can be given as step input. The reference speed is given as a constant value which can be changed based on the requirement and accordingly the desired speed can be obtained. The methods used in this paper are namely speed control using PID controller, using CurrentController and a closed loop speed control. These methods are compared based on the values of current total harmonic distortion (THD), output current (RMS value) and on the values of rise time and settling time of the speed response of various methods.
The speed control of a BLDC motor in commercial segment is a important task there are many methods are usually used for speed controlling of BLDC motor like PI controller. But the experiment gives best results with PID controller using voltage source converter.
1.1 BLDC Motor Brushless DC motors have gained widespread acceptance in various industrial and consumer applications due to
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