Classification Of Permanent Magnet Synchronous Motors Essay

TM4, the industrial partner, is a leading manufacturer and supplier of traction motors and drives for electric vehicle industry in Canada. As a drive manufacturer, they always aim to provide solution which is energy efficient with small footprint. In order to achieve this, they always look for alternative software and hardware solutions. Software modifications, which may improve the system performance in comparison to their existing drive control strategy without increasing the size of the system, are always sought after for continuous improvement of their system. In this regards, the internship is relevant to them for exploring alternative control strategies.

This book, written by Michael H. Westbrook in 2001, offers a thorough depiction of the current status, history, and the future advancement of electric cars. The Electric and Hybrid Electric Car book analyzes slants in electric auto improvement from a global viewpoint, with numerous illustrations drawing from the creator's own encounters in American and European car commercial ventures. Starting with the experimental revelations that made electric vehicle innovation conceivable at the beginning of the 20th century, author Michael H. Westbrook

Due to the physical constraints of having to fit a motor inside the frame of a size 18”-24” wheel, Protean Electric effectively turned their in-wheel motor system inside-out. Traditionally, the design of the motor involved placing the rotor and magnets inside of the stator. However, instead of fitting the rotor inside the stator for the in-wheel motor, they have actually moved the rotor to be on the outside so that it encases the stator. The increased size and surface area of the rotor creates far more torque which allows the Protean DriveTM to boast one of the largest torque densities for any electric vehicle motor. This change also generates more available space which allows power electronics and

In a normal motor set-up, there are different mechanical and electronic components, for example, the admission complex, flash attachments, Mass wind stream/Volume wind stream, and so forth. Present day motors utilize the utilization of an ECM to give the best harmony in the middle of execution and emanations. Through the OBD correspondences convention, the electronically controlled parts of the motor can be altered in the process known as 'mapping'. Changing so as to map can either be performed the product inside of the ECU (chip tuning by means of firmware adjustment), or by giving false information through module equipment (piggybacking). Mechanical segments can likewise be supplanted, for example, turbochargers or

Brushless permanent magnet DC motors are being manufactured and used increasingly in everything from home appliances to automobiles due to their inherent advantages. The merits of these motors could be enhanced further according to another design approach method which alters the typically used winding parts for low to medium power range motors. This paper deals with the high power brushless DC motor used for traction in a 48 V golf cart system.

The essential parts of a diesel-electric train are diesel motor (prime mover), the fundamental generator/alternator rectifier, footing engines, and a control framework embodying the motor

In today’s motorized life , It’s difficult to live without motor (Engines) and the main source of it’s input power is fossil fuels & partly electric power. In future these fuels or electricity may not be available widely as they are non renewable energies. So, it may be difficult to use engine with the fuels.

In this work we look at the past of the motor vehicle. We recognize Henry Ford and his creation of the first mainstream car. We praise his pricing strategy used to make this car a household product. We dig to find out which manufacturer brought us the conventional car control layout. Then we jump ahead to our modern age of cars and look at the ways engineers are finding ways to replace mechanical systems with electric ones. We then delve into the world of alternative power methods, primarily the hybrid, hydrogen, and electric options. Lastly we touch base on the enthusiasts concern that the car scene is dying.

Tesla Motor is a well-known automobile company in North America, Europe, Australia, Asia and China. It has been the dream car for several environmentalist for a couple of years now. Tesla Motors was first founded in 2003 by engineers in Silicon Valley. These engineers insisted that electric cars could be the future and more effective than gasoline-powered cars. A car that is able to have instant torque, great power and zero emissions and still be environmentally friendly. In the process of creating each new generation Tesla promises it will become increasingly affordable, this would assist Tesla Motors reach its mission: “to accelerate the world’s transition to sustainable transport” (Tesla). Tesla without a doubt has become the supercar of this era. It has not reached its mission completely, however is has surpassed cars and now created a battery that has 2 kw (kilowatts) that is barely enough for car on the other hand there is another that is 7 Kw which is able to power a whole house they are both 4,000 dollars.

The purpose for this research paper is to introduce and familiarize students with the basic concepts and components of electric vehicles. In doing so, we will be able to give a better and more detailed explanation of the luxurious Tesla Model S electric vehicle’s components such as the battery, its methods of charging and the types of motors that are implemented in the Model S, and how the Model S sets itself apart from the rest of the competition, whether it be electric vehicles, hybrid electric vehicles, or vehicles that implement an internal combustion engine or even the most fastest of racecars ever made such as the Mclaren F1.

Previously reported three-level DPWM schemes concluded that at a lower power factor, the three-level DPWM schemes cannot perfectly align the 60° no-switching durations [4, 17] with phase-current peaks, incurring switching instances around current maxima. Thus, their impact on the switching loss reduction is limited during low power factor operation. - Unequal current stress distribution: With conventional three-level modulation strategies, the inner and outer devices are not utilized in a uniform manner [3, 14]. At lower modulation indices, the inner devices carry a substantially higher amount of current compared to the outer devices. This effectively limits the output current capability of the drive when needed most, typically during starting from standstill and during acceleration/deceleration [21].

The direction of both the magnetic field and the current are pointed by the first and second fingers respectively. The thumb indicates the direction in which the conductor is pushed by effects of the magnetic field (Rizzoni, 2004).

BRIEF DESCRIPTION OF MOTORS AND DRIVES: In this segment, I will briefly review the diverse types of variable-speed drives used in the industry. For the most part, electronic AC and DC drives find their domination in manufacturing and commercial HVAC uses of today. This brief look at drive machineries will assist you, should you encounter any of these types in the future. In addition, I will also review the benefits and limits of each type.

This paper compares the characteristics and performance of IM, SRM and interior permanent magnet drive motor (IPM). HEVs were not widely available until the launch of Toyota Prius in 1997 in Japan, which was followed by Honda Insight in the year 1999. The data related to design for IPM is taken from the report on Toyota Prius HEV 2004 [1] and the comparison done with IM uses same design of the stator. Mostly it is said that PM motor are the best match for the HEVs in terms of performance and efficiency. This is despite that induction motors and SRM have been used in cars like Tesla and General Motors. Also the SRM and IM have an advantage over PM motor in terms of manufacturing cost and durability. SRM is the perfect magnet free alternative as suggested in [2] and offers zero field coasting and controllable flux. Hence, the IM and SRM offer more flexibility of controlling flux.¬¬

NOMENCLATURE d-q stator voltages of induction generator d-q stator currents of induction generator d-q rotor currents of induction generator , stator and rotor resistances per phase of induction generator stator, rotor and magnetizing inductances of induction generator self excitation capacitance per phase of induction generator Angular stator frequency of the induction generator Angular rotor speed (electrical rads/s) of the induction generator moment of inertia friction coefficient, differential operator d/dt DC-link inductance DC-link resistance firing angles of the converter and inverter d-q input voltage of the converter d-q input current of the converter DC-link current inverter output voltage d-q stator voltages of synchronous generator d-q damper winding voltages of synchronous generator field winding voltage of synchronous generator d-q stator currents of synchronous generator d-q damper winding currents of synchronous generator field winding current of synchronous generator stator resistance of synchronous generator d and q damper winding resistances d and q mutual inductances d and q self inductances rotor speed (electrical rads/s) of the synchronous generator torque input from diesel engine applied and actual fuel flow rate of diesel engine combustion delay time constant time constant and gain of fuel rack position actuator prediction horizon.