``The use of electric motors for the propulsion of seagoing vessels
... components as generators, link plate, VSD, motors and more automation. However, depending on the type of vessel, operational costs can be far lower. This is because of the fuel savings and because the fact the electrical motor needs less maintenance. But there will be needed more electrical power, w ...
... components as generators, link plate, VSD, motors and more automation. However, depending on the type of vessel, operational costs can be far lower. This is because of the fuel savings and because the fact the electrical motor needs less maintenance. But there will be needed more electrical power, w ...
FE Torque Analysis of a Shaded
... in a number of rotor positions spanned along a pole pitch at a range of current change. The computation of electromagnetic torque in the SPIM is performed by using different numerical methods, on the basis of the FEM results, obtained from series of computations. It is assumed that the magnetic fiel ...
... in a number of rotor positions spanned along a pole pitch at a range of current change. The computation of electromagnetic torque in the SPIM is performed by using different numerical methods, on the basis of the FEM results, obtained from series of computations. It is assumed that the magnetic fiel ...
Basics of AC Motors
... range of each other, their lines of flux push the magnets apart. In summary, unlike poles attract and like poles repel. The attracting and repelling action of the magnetic fields is essential to the operation of AC motors, but AC motors use ...
... range of each other, their lines of flux push the magnets apart. In summary, unlike poles attract and like poles repel. The attracting and repelling action of the magnetic fields is essential to the operation of AC motors, but AC motors use ...
Fläkt Woods three phase asyncronous motor Manufacturer: ABB
... conductors. The distance of the round conductors must be at least 150 mm from each other. This arrangement has no electrical safety function; the purpose is to equalise the potentials. When the motor and the gearbox are mounted on a common steel fundament, no potential equalisation is required. ...
... conductors. The distance of the round conductors must be at least 150 mm from each other. This arrangement has no electrical safety function; the purpose is to equalise the potentials. When the motor and the gearbox are mounted on a common steel fundament, no potential equalisation is required. ...
PDF
... Brushless DC Motors (BLDC) is also being used for domestic, commercial and agricultural applications. The methodology used in this paper is 1. Modeling of PV Panel [2-4]. 2. PV Panel connected to sensitive load with and ...
... Brushless DC Motors (BLDC) is also being used for domestic, commercial and agricultural applications. The methodology used in this paper is 1. Modeling of PV Panel [2-4]. 2. PV Panel connected to sensitive load with and ...
B.E 3/4 - II Semester
... relays, Protection of generator and transformer using percentage differential relays, Split phase, Inter turn protection, Overheating, Loss of excitation, Protection of generators, Protection of transformers against magnetizing inrush, Buchholz relay, Protection of earthing transformers, Generator t ...
... relays, Protection of generator and transformer using percentage differential relays, Split phase, Inter turn protection, Overheating, Loss of excitation, Protection of generators, Protection of transformers against magnetizing inrush, Buchholz relay, Protection of earthing transformers, Generator t ...
Welcome to this training module which looks at the hardware
... The inverter converts the DC voltage into AC voltage with variable frequency and amplitude. The inverter comprises six diodes and six IGBTs. The inverter is connected to the motor. Motor control program and control electronics control the switching of the IGBTs to form the required voltage waveform ...
... The inverter converts the DC voltage into AC voltage with variable frequency and amplitude. The inverter comprises six diodes and six IGBTs. The inverter is connected to the motor. Motor control program and control electronics control the switching of the IGBTs to form the required voltage waveform ...
Beakman`s Motor - Rensselaer Polytechnic Institute
... A key issue noticed by nearly all motor builders is balance. The better balanced the coil, the faster it turns. To achieve good balance, it has generally been found that a smaller coil will be more stable. This coil will also be able to work closer to the magnet where the magnetic field is larger. S ...
... A key issue noticed by nearly all motor builders is balance. The better balanced the coil, the faster it turns. To achieve good balance, it has generally been found that a smaller coil will be more stable. This coil will also be able to work closer to the magnet where the magnetic field is larger. S ...
Development of Microcontroller Based Speed Control Scheme of
... Analog to dgital converter (ADC): The microcontroller works with digital logic. So when tacho-generator is used as the speed feedback, the value should be processed digitally before feeding back to the microcontroller. This digital value of speed is then processed by the controller suitably. ADC ICs ...
... Analog to dgital converter (ADC): The microcontroller works with digital logic. So when tacho-generator is used as the speed feedback, the value should be processed digitally before feeding back to the microcontroller. This digital value of speed is then processed by the controller suitably. ADC ICs ...
Integrating EMI Filters and Appliance Motor Controls
... are switched in the 2KHz to 20KHz range, causing large, fast voltage transients into the motor windings8. The EMI is no longer focused down at low frequency conducted, but now extends into the radiated range. As seen before, tradeoffs need to be made between performance and EMI. For example, switchi ...
... are switched in the 2KHz to 20KHz range, causing large, fast voltage transients into the motor windings8. The EMI is no longer focused down at low frequency conducted, but now extends into the radiated range. As seen before, tradeoffs need to be made between performance and EMI. For example, switchi ...
Three phase Rotation Conventions
... neutral currents are zero for +,- sequ. (and usually that neutral voltages are zero). 3. For the 0 sequence (all in phase), any star networks with no neutral connection can be ignored altogether. 4. Unbalanced faults can be converted to balanced Symmetric component current sources. 5. Unbalanced sou ...
... neutral currents are zero for +,- sequ. (and usually that neutral voltages are zero). 3. For the 0 sequence (all in phase), any star networks with no neutral connection can be ignored altogether. 4. Unbalanced faults can be converted to balanced Symmetric component current sources. 5. Unbalanced sou ...
International Electrical Engineering Journal (IEEJ) Vol. 6 (2015) No.1, pp. 1716-1726
... It has been seen that many researchers proposed various IM models with different power electronics devices based inverters and control the speed of the IM. But harmonics always creates problems in the currents, voltage and developed electromagnetic torque. Therefore, the modeling of such motors is s ...
... It has been seen that many researchers proposed various IM models with different power electronics devices based inverters and control the speed of the IM. But harmonics always creates problems in the currents, voltage and developed electromagnetic torque. Therefore, the modeling of such motors is s ...
efficiency optimized control of high performance induction motor drive
... Undoubtedly, the induction motor is a widely used electrical motor and a great energy consumer. Three-phase induction motors consume more than 60% of industrial electricity and it takes a lot of effort to improve their efficiency [1]. The vast majority of induction motor drives are used for heating, ...
... Undoubtedly, the induction motor is a widely used electrical motor and a great energy consumer. Three-phase induction motors consume more than 60% of industrial electricity and it takes a lot of effort to improve their efficiency [1]. The vast majority of induction motor drives are used for heating, ...
Asynchronous performance analysis of a single
... single-phase version of the LSPM motor. This special electric motor is suited for application in home appliances, such as refrigerator compressors [1], [2]. The induced currents in the rotor bars during the asynchronous operation will interact with the stator fluxlinkages and a cage torque will be p ...
... single-phase version of the LSPM motor. This special electric motor is suited for application in home appliances, such as refrigerator compressors [1], [2]. The induced currents in the rotor bars during the asynchronous operation will interact with the stator fluxlinkages and a cage torque will be p ...
Sérgio CRUZ 1,2 , Flávio GASPAR 2
... operating point (load level). A iˆds , B iˆqs , , are values that depend on the motor parameters, fault extension (if a rotor fault is present), load inertia and motor operating point. The angles , contain vital information that can be used to distinguish the rotor fault from the time-v ...
... operating point (load level). A iˆds , B iˆqs , , are values that depend on the motor parameters, fault extension (if a rotor fault is present), load inertia and motor operating point. The angles , contain vital information that can be used to distinguish the rotor fault from the time-v ...
D N IAGNOSTIC
... becoming a more common cause of motor and generator failure. If one does regular inspections of the machine, such deterioration can be detected well before a stator winding fault by looking for signs of fretting dust, greasing and/or cracks in the varnish that often coats the endwindings. However, t ...
... becoming a more common cause of motor and generator failure. If one does regular inspections of the machine, such deterioration can be detected well before a stator winding fault by looking for signs of fretting dust, greasing and/or cracks in the varnish that often coats the endwindings. However, t ...
Role of stored energy on operation of squirrel cage induction motor
... Abstract: - Voltage sag being one of the biggest problems in power quality, a method for analysis of effects of voltage sag on performance characteristics of induction motor is proposed in this paper. Induction motor being most popular in industry, it is very important to carry out studies about the ...
... Abstract: - Voltage sag being one of the biggest problems in power quality, a method for analysis of effects of voltage sag on performance characteristics of induction motor is proposed in this paper. Induction motor being most popular in industry, it is very important to carry out studies about the ...
- Phi Education
... Lynx is a micro stepping stepper motor driver board powered by A3977. It has a built-in translator and is designed to operate bipolar stepper motor in full, half, quarter and one-eighth step-modes. Lynx has motor supply voltage of 8V to 35V and maximum current rating of ±2.5 A. The A3977 includes a ...
... Lynx is a micro stepping stepper motor driver board powered by A3977. It has a built-in translator and is designed to operate bipolar stepper motor in full, half, quarter and one-eighth step-modes. Lynx has motor supply voltage of 8V to 35V and maximum current rating of ±2.5 A. The A3977 includes a ...
Brushless DC electric motor
Brushless DC electric motor (BLDC motors, BL motors) also known as electronically commutated motors (ECMs, EC motors) are synchronous motors that are powered by a DC electric source via an integrated inverter/switching power supply, which produces an AC electric signal to drive the motor. In this context, AC, alternating current, does not imply a sinusoidal waveform, but rather a bi-directional current with no restriction on waveform. Additional sensors and electronics control the inverter output amplitude and waveform (and therefore percent of DC bus usage/efficiency) and frequency (i.e. rotor speed).The rotor part of a brushless motor is often a permanent magnet synchronous motor, but can also be a switched reluctance motor, or induction motor.Brushless motors may be described as stepper motors; however, the term stepper motor tends to be used for motors that are designed specifically to be operated in a mode where they are frequently stopped with the rotor in a defined angular position. This page describes more general brushless motor principles, though there is overlap.Two key performance parameters of brushless DC motors are the motor constants Kv and Km.