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AN EFFICIENT BRAKING ALGORITHM FOR INTERIOR
... to add switching and passive element (braking transistor and resistor) in parallel with DC link capacitor, though creating a braking chopper. Chopper maintains voltage on a DC link capacitor and dissipates regenerated braking energy. However, this device also increases drive complexity and price and ...
... to add switching and passive element (braking transistor and resistor) in parallel with DC link capacitor, though creating a braking chopper. Chopper maintains voltage on a DC link capacitor and dissipates regenerated braking energy. However, this device also increases drive complexity and price and ...
DC Motors and Generators Unit 2
... In the first part of the exercise, you will set up the equipment in the Workstation, connect the equipment as shown in Figure 2-14, and make the appropriate settings on the equipment. In the second part of the exercise, you will measure the armature resistance ܴ of the DC Motor/Generator. It is not ...
... In the first part of the exercise, you will set up the equipment in the Workstation, connect the equipment as shown in Figure 2-14, and make the appropriate settings on the equipment. In the second part of the exercise, you will measure the armature resistance ܴ of the DC Motor/Generator. It is not ...
AN3234: Washing Machine Three-Phase AC Induction Motor Drive
... The three-phase AC induction washing machine drive responds to the new market demands for higher performing appliances. The aim is to provide maximum drive performance at a competitive price, served particularly well by Freescale Semiconductor's recently introduced 56F801x family of hybrid digital s ...
... The three-phase AC induction washing machine drive responds to the new market demands for higher performing appliances. The aim is to provide maximum drive performance at a competitive price, served particularly well by Freescale Semiconductor's recently introduced 56F801x family of hybrid digital s ...
Choosing the Right Stator Bar for Your Next Rewind
... Some owners are choosing this option more frequently, since the turn insulation can be a weaker area in the coil design and winding failures are often due to a surge and failure of the turn insulation. The choice of a multiturn coil or single turn bar is often dictated by the owner, perhaps based on ...
... Some owners are choosing this option more frequently, since the turn insulation can be a weaker area in the coil design and winding failures are often due to a surge and failure of the turn insulation. The choice of a multiturn coil or single turn bar is often dictated by the owner, perhaps based on ...
electrical drive
... In this system, ac voltages from 11 to 15 KV at 16 2/3 or 25 Hz are used. If supply is from a generating station exclusively meant for the traction system, there is no difficulty in getting the electric supply of 16 2/3 or 25 Hz. If electric supply is taken from the high voltage transmission lines a ...
... In this system, ac voltages from 11 to 15 KV at 16 2/3 or 25 Hz are used. If supply is from a generating station exclusively meant for the traction system, there is no difficulty in getting the electric supply of 16 2/3 or 25 Hz. If electric supply is taken from the high voltage transmission lines a ...
Understanding Motor Driver Current Ratings
... Figure 2 shows an oscilloscope capture of a short circuit event using a TI DRV8813 motor driver. In this case, the output was enabled with a direct short across the outputs. The yellow trace is the input signal, the blue trace is the fault-output signal, and the pink trace is the current through the ...
... Figure 2 shows an oscilloscope capture of a short circuit event using a TI DRV8813 motor driver. In this case, the output was enabled with a direct short across the outputs. The yellow trace is the input signal, the blue trace is the fault-output signal, and the pink trace is the current through the ...
Motor control - Anglia Components
... Depending on the application, either analog controllers or microcontrollers can be used. Analog controllers are more compact and basic, whereas microcontrollers are more flexible and allow complex control algorithms to be implemented. ...
... Depending on the application, either analog controllers or microcontrollers can be used. Analog controllers are more compact and basic, whereas microcontrollers are more flexible and allow complex control algorithms to be implemented. ...
Discrete-time AC motor control apparatus
... rent motor, an angle of a rotor of the motor is required to be sensed for a feedback of information of the rotor ...
... rent motor, an angle of a rotor of the motor is required to be sensed for a feedback of information of the rotor ...
lecture1424353251
... 1.1 Fundamental Principles of A.C. Machines: AC rotating machines can be classified mainly in two categories Synchronous Machines and Asynchronous Machines. They are defined as•Synchronous Machines: •Synchronous Generators: A primary source of electrical energy. •Synchronous Motors: Used as motors a ...
... 1.1 Fundamental Principles of A.C. Machines: AC rotating machines can be classified mainly in two categories Synchronous Machines and Asynchronous Machines. They are defined as•Synchronous Machines: •Synchronous Generators: A primary source of electrical energy. •Synchronous Motors: Used as motors a ...
lesson topic 8.1 synchros and control
... one direction during onehalf cycle (view A) and in the other direction during the next half cycle (view B). Because of its inertia, the bar magnet cannot turn rapidly enough to follow the changing magnetic field and may line up with either end toward the coil (view C). ...
... one direction during onehalf cycle (view A) and in the other direction during the next half cycle (view B). Because of its inertia, the bar magnet cannot turn rapidly enough to follow the changing magnetic field and may line up with either end toward the coil (view C). ...
Solid State Drives 7th Semester
... Furthermore, induction and synchronous motors operate at a low power factor when operating below the rated power. During operation of the machine, heat is produced due to losses and temperature rises. An amount of developed heat is dissipated into the atmosphere. When the dissipation of heat is equa ...
... Furthermore, induction and synchronous motors operate at a low power factor when operating below the rated power. During operation of the machine, heat is produced due to losses and temperature rises. An amount of developed heat is dissipated into the atmosphere. When the dissipation of heat is equa ...
Commutator (electric)
![](https://commons.wikimedia.org/wiki/Special:FilePath/Universal_motor_commutator.jpg?width=300)
A commutator is the moving part of a rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction between the rotor and the external circuit. It consists of a cylinder composed of multiple metal contact segments on the rotating armature of the machine. The commutator is one component of a motor; there are also two or more stationary electrical contacts called ""brushes"" made of a soft conductor like carbon press against the commutator, making sliding contact with successive segments of the commutator as it rotates. The windings (coils of wire) on the armature are connected to the commutator segments. Commutators are used in direct current (DC) machines: dynamos (DC generators) and many DC motors as well as universal motors. In a motor the commutator applies electric current to the windings. By reversing the current direction in the rotating windings each half turn, a steady rotating force (torque) is produced. In a generator the commutator picks off the current generated in the windings, reversing the direction of the current with each half turn, serving as a mechanical rectifier to convert the alternating current from the windings to unidirectional direct current in the external load circuit. The first direct current commutator-type machine, the dynamo, was built by Hippolyte Pixii in 1832, based on a suggestion by André-Marie Ampère. Commutators are relatively inefficient, and also require periodic maintenance such as brush replacement. Therefore, commutated machines are declining in use, being replaced by alternating current (AC) machines, and in recent years by brushless DC motors which use semiconductor switches.