Electrical Machines and Control Project

The equivalent electrical circuit of a dc motor is shown in figure 5.2. It can be represented by a voltage source (Va) across the coil of the armature. The electrical equivalent of the armature coil can be described by an inductance (La) in series with a resistance (Ra) in series with an induced voltage (Vc) which

The control voltage is 1V with no load connected to the generator. 4. Mode 1: the motor will accelerate from low speed mode to high speed model within 0.5 seconds. 5. Mode 2: the motor is able to accelerate with a zero steady state error with minimum achievable rise time.

Motors and generators are used frequently in engineering applications. In fact, you will use them in your final project. Gears (or pulleys) are usually used to transmit the power from the motor (input) to the output. A pair of gears forms a simple gear train. As engineers, you will need to understand how motors and generators work in order to pick appropriate ones to use in different applications or to know how your design will behave when hooked up to a particular motor/generator. In your final project for this course, you will use a generator (i.e. for wind power generation) and

this world. Trains that take people to work, assembly lines that pump out food, toys and an assortment

It is thе main connеction bеtwееn thе motor and battеry pack, it is pluggеd into thе rеcеivеr’s throttlе channеl to powеr it. Thе ‘Battеry Еliminator Circuit’ (BЕC) is a built-in option that allows thе ЕSC to powеr both thе motor and thе radio Rеcеivеr with thе samе battеry pack. Voltagе suppliеd to thе motor is much grеatеr than thе voltagе suppliеd to thе rеcеivеr.

The motor allow to the board to run smoothly on fields with the help of

A dc Brushless Motor uses a permanent magnet external rotor, three phases of driving coils, one or more Hall Effect devices to sense the position of the rotor, and the associated drive electronics. The coils are activated, one phase after the other, by the drive electronics as cued by the signals from the Hall effect sensors, they act as three phase synchronous motors containing their own variable frequency drive electronics. A simplified current controlled modulation technique for BLDC motors is presented.

D.C Motor is used for variable speed operation because in dc motor torque and flux that can be control independently and that is achieved by armature and field current control respectively. D.C motor has many advantages delivering high starting torque, ease of control and non linear performance. But due to certain disadvantage of dc machine such as mechanical commutator and brush holder required time to time maintenance [1] .So cost of the drive system is increases. But now D.C Motor is less used in industrial applications. Because of low cost, better performance and the requirement of maintenance is less as compared to D.C Motor it make the asynchronous motor advantageous in many industrial applications. SCIM are most widely used than all the rest of the electric motor as they have all the advantages of A.C Motors and are cheaper in cost as compared to slip ring induction motor. Because of absence of slip rings, brush maintenance duration and cost associated with the wear and tear of brush are minimized. Because of these advantages, the induction motor is used in element of most of the electrical drive system for all the conditions like starting, braking, change in speed and speed reversal. To achieve the maximum efficiency of the induction motor drive, so many techniques are developed in the last few years. Now a day’s high switching frequency converters are used for changing the frequency, phase and amplitude of the input to an A.C. Motor can be changed, hence the speed and motor torque can be controlled. With the help of power electronic it is possible to

For a given induction motor, the flux linkage can be controlled using the stator current which indirectly control the electromagnetic torque. Also for a steady state, this rate of change of magnetic energy is zero. However, it has a finite magnitude value during the transient state.

A notable application of Nikola Tesla’s Alternating Current induction motor is the Electric Vehicle (EV). EVs are powered by an electric motor rather than a conventional gasoline engine. It is important to make the distinction between an EV and a hybrid, plug-in hybrid, or hydrogen fuel cell car. For our analysis, an EV is a vehicle that is completely driven by an electric motor, which is powered by a large battery, such as the BMW i3 and the Tesla Model S.

Automation is a controlled operation that functions automatically through the use of an apparatus, process, system or by mechanical or electronic devices that replaces the need for human labor. “Automation evolved from three interrelated trends in technology: the development of powered machinery for production operations, the introduction of powered equipment to move materials and workpieces during the manufacturing process, and the perfecting of control systems to regulate production, handling, and distribution.” Automation is an integral tool used in business to help with sustainability.

This paper proposes an algebraic and a graphical method for finding all the performance extreme values of a three-phase induction machine when it operates as a motor or a generator. The performance extreme include maximum efficiency, maximum power factor, maximum electric power, maximum torque and maximum mechanical power in both motoring and generating modes. In addition to the algebraic method, this paper shows how an old graphical method can be used to accurately find the performance extreme values

PID controllers, also known as a proportional integral device controller, are one of the most commonly used controllers in industry. A PID algorithm is derived from three coefficients. These tuning parameters are the proportional, integral and derivative coefficients, which are adjusted per device to obtain an optimal response.

This report contains details from three lab experiments performed using a synchronous machine for both a motor and a generator. The fundamental principle of a synchronous machine is that the electrical frequency is related to the mechanical frequency. The first lab performed consisted of doing two different tests, the open-circuit and short-circuit tests, respectively. By performing these two basic tests, it can be determined the armature voltage and current changes drastically with each test. The second lab performed required to use the synchronous machine as a generator. When acting like a generator, it becomes necessary to

Economically petroleum fuel prices have escalated in the past hence use of the electrical controlled vehicle is a great alternative to manage the cost issues. Therefore, the research proposal focuses on Electrical Vehicle technology.