The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents three different virtual space vector based strategies to keep the neutral point potential fluctuation (NPPF) low in the field weakening region for an interior permanent magnet synchronous machine (IPMSM) drive. Out of three strategies, one even completely eliminates the NPPF. A detailed analytical study to demonstrate the root cause behind the high NPP fluctuation in the field...
The aim of this paper is to compare performances of brushless DC (BLDC) motor on two different inverter control strategies. Sinusoidal and square wave are individually applied to the motor and characteristics are studied. A prototype inverter fed BLDC motor drive is designed and developed. DSP dsPIC30F3011 along with MPLAB IDE software is used for generation of firing pulses for each type of inverter...
Wide torque-speed range and high reliability are the primary need of the traction motor in electric vehicles. Switched Reluctance machine (SRM) offers numerous advantages such as simple and robust construction, high speed and high durability, low cost, and fault tolerance control capabilities, high reliability as each phase works independently. In view of this, the paper describes the design methodology...
This paper presents a novel topology of dual rotor radial flux-BLDC motor with Halbach array magnets as an efficient solution for drives. Energy efficient motors are the need of day for electric vehicles, industrial and consumer products. Especially this concept is arrived to cater for the requirements of electrical vehicle. Due to advent of high permeability, high saturation magnetic materials, high...
Microstepping drive for stepper motor is a well-known technique to improve stepper motor performance. Normally microstepping is carried at fixed pulse width planned. But this method is suitable only when motors are driven at fixed pre-defined speeds for non-real time applications. The problem discussed in this paper considers an application where motors need to track a given reference position profile...
Fault diagnostic index is a quantity which is sensed or calculated in order to diagnose and quantify the extent of fault. With increasing use of closed loop drives in industrial applications, online fault diagnosis has become a critical requirement. This paper focusses on exploring the average error in torque as a fault diagnostic index in field-oriented-controlled induction motor drives with stator...
This paper examines the behavioral comparison of the electric drives with permanent magnet machines adopted for vertical transportation considering the experiment with actual structure under variable speed drives. Most commonly adopted traction drives in the current inclination of elevator industry is permanent magnet synchronous machine with adjustable frequency drive laterally having direct current...
A low cost position sensorless brushless DC motor drive is presented in this paper. The motor starts with simple align and go methodology, to a speed where a traditional sensorless algorithm based on winding back EMF, detects accurate commutation instants and then filtered line to line back EMF crossings are utilized to find the rotor position. The speed and current are controlled with variable structure...
This paper presents design and modelling of single stage standalone PV based PMSM (Permanent Magnet Synchronous Motor) drive. Standalone power supply system is more feasible and convenient option for water pumping applications in irrigation. Three phase DTC (Direct Torque Control) VSI (Voltage Source Inverter) is presented for supplying the PMSM for variation in solar irradiation to control the flow...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.