Power electronics in ship propulsion electronic motors
... as SCR - DC drive converter. In order to assure the appropriate induced voltage at the motor terminals, which is necessary to turn off the inverter thyristors, the synchronous motor must operate in the capacitive mode that is with leading power ...
... as SCR - DC drive converter. In order to assure the appropriate induced voltage at the motor terminals, which is necessary to turn off the inverter thyristors, the synchronous motor must operate in the capacitive mode that is with leading power ...
2011/12 - CSM2044 - Electrical Energy Conversion and Transport
... conductor, Lorentz force on a conductor, Direction of the force acting on a straight conductor, Residual flux density and coercive force, Hysteresis loop, Hysteresis loss, Hysteresis loss caused by rotation, Eddy currents, Eddy currents in a stationary iron core, eddy-current losses in a revolving c ...
... conductor, Lorentz force on a conductor, Direction of the force acting on a straight conductor, Residual flux density and coercive force, Hysteresis loop, Hysteresis loss, Hysteresis loss caused by rotation, Eddy currents, Eddy currents in a stationary iron core, eddy-current losses in a revolving c ...
AsynMotor
... Asynchronous motor design is performed by using analytical model and optimized with this model. Next step is to check the design by the means of FEM or BEM analysis. Auxilary and main winding amper-turn ...
... Asynchronous motor design is performed by using analytical model and optimized with this model. Next step is to check the design by the means of FEM or BEM analysis. Auxilary and main winding amper-turn ...
External Rotor Motors
... sized to suit the fan impeller at the maximum synchronous speed and do not have the reserve capacity to provide the extra power required for faster speeds. 2. All frequency Inverters must include “all pole effective sinusoidal filters” 3. DV/DT filters are not a suitable replacement for “all pole si ...
... sized to suit the fan impeller at the maximum synchronous speed and do not have the reserve capacity to provide the extra power required for faster speeds. 2. All frequency Inverters must include “all pole effective sinusoidal filters” 3. DV/DT filters are not a suitable replacement for “all pole si ...
Lab: Motors
... Electric motors are found in many things. The interaction of magnetic forces and electricity allows motors to work. Electric motors are used to power fans, electric cars, washing machines, dryers, and many other machines that move as a result of electricity. In this activity, you will make a motor i ...
... Electric motors are found in many things. The interaction of magnetic forces and electricity allows motors to work. Electric motors are used to power fans, electric cars, washing machines, dryers, and many other machines that move as a result of electricity. In this activity, you will make a motor i ...
ES205 Lab 4 - Modeling of a Motor-Generator Set - Rose
... The objective of this pre-lab exercise is to construct a Simulink model for a motor-generator set, where both machines are armature-controlled. Nominal system parameters are given . You will use this model for the lab. Introduction: Electric motors and generators are both machines which are used to ...
... The objective of this pre-lab exercise is to construct a Simulink model for a motor-generator set, where both machines are armature-controlled. Nominal system parameters are given . You will use this model for the lab. Introduction: Electric motors and generators are both machines which are used to ...
Stepper Motor Driver
... “store“ pin is high (at 5v). The store input is connected to data line 0 or 1 or 2 or 3 of the port so the computer can run one motor by putting bit 0 = 1(data line 0 at 5v), a second motor by putting bit 1 = 1 (data line 0 at 5v) etc. So this method could be used to control up to four motors. The b ...
... “store“ pin is high (at 5v). The store input is connected to data line 0 or 1 or 2 or 3 of the port so the computer can run one motor by putting bit 0 = 1(data line 0 at 5v), a second motor by putting bit 1 = 1 (data line 0 at 5v) etc. So this method could be used to control up to four motors. The b ...
Special-Purpose Motors
... • However, the operation differs mainly in the complicated control mechanism of the motor. • In order to develop torque in the motor, the rotor position should be determined by sensors so that the excitation timing of the phase windings is precise. • Although its construction is one of the simplest ...
... • However, the operation differs mainly in the complicated control mechanism of the motor. • In order to develop torque in the motor, the rotor position should be determined by sensors so that the excitation timing of the phase windings is precise. • Although its construction is one of the simplest ...
Document
... • Single-phase motors are used mostly to operate home appliances such as air conditioners, refrigerators, pumps, and fans. • They are designed to operate on 120 V or 240 V. • They range in capacity from fractional horsepower to several horsepower depending on the application. • Voltage is induced in ...
... • Single-phase motors are used mostly to operate home appliances such as air conditioners, refrigerators, pumps, and fans. • They are designed to operate on 120 V or 240 V. • They range in capacity from fractional horsepower to several horsepower depending on the application. • Voltage is induced in ...
Building an Electric Vehicle
... controlled. Unlike the Series motor who's armature and field windings are wired together in series, the SepEx motors field and armature windings are excited separately by special SepEx controllers that have wire leads to both the armature and the field. Separate control of the armature and field cre ...
... controlled. Unlike the Series motor who's armature and field windings are wired together in series, the SepEx motors field and armature windings are excited separately by special SepEx controllers that have wire leads to both the armature and the field. Separate control of the armature and field cre ...
power devices and systems - McMaster University > ECE
... Calculations in SI units, per unit and percent Three phase connections - three phase per unit calculations ...
... Calculations in SI units, per unit and percent Three phase connections - three phase per unit calculations ...
In a typical DC motor, there are permanent magnets on the outside
... The most common rotor is a squirrel-cage rotor . It is made up of bars of either solid copper (most common) or aluminum that span the length of the rotor, and are connected through a ring at each end. The rotor bars in squirrel-cage induction motors are not straight, but have some skew to reduce noi ...
... The most common rotor is a squirrel-cage rotor . It is made up of bars of either solid copper (most common) or aluminum that span the length of the rotor, and are connected through a ring at each end. The rotor bars in squirrel-cage induction motors are not straight, but have some skew to reduce noi ...
Electric motor
An electric motor is an electrical machine that converts electrical energy into mechanical energy. The reverse of this would be the conversion of mechanical energy into electrical energy and is done by an electric generator.In normal motoring mode, most electric motors operate through the interaction between an electric motor's magnetic field and winding currents to generate force within the motor. In certain applications, such as in the transportation industry with traction motors, electric motors can operate in both motoring and generating or braking modes to also produce electrical energy from mechanical energy.Found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, and disk drives, electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as from the power grid, inverters or generators. Small motors may be found in electric watches. General-purpose motors with highly standardized dimensions and characteristics provide convenient mechanical power for industrial use. The largest of electric motors are used for ship propulsion, pipeline compression and pumped-storage applications with ratings reaching 100 megawatts. Electric motors may be classified by electric power source type, internal construction, application, type of motion output, and so on.Electric motors are used to produce linear or rotary force (torque), and should be distinguished from devices such as magnetic solenoids and loudspeakers that convert electricity into motion but do not generate usable mechanical powers, which are respectively referred to as actuators and transducers.