Questions tagged [synchronous-motor]
The synchronous-motor tag has no usage guidance.
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Why does inverter malfunctions when PCB is placed near metal enclosure?
I have designed a three phase inverter to drive a Synchronous motor. The motor operates fine when I place the PCB outside of the Aluminum enclosure of the motor. The voltage and frequency increases ...
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What's the difference between a direct drive/torque motor and a stepper?
A torque motor is 'either a rolled-up linear motor or a classic servo drive with a large number of poles'. As I understand it they are ironless 3 phase supply motors, though perhaps neither of these ...
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Ratio of electrical input to mechanical input in a synchronous generator
In a synchronous generator we want to convert mechanical to electrical power but the thing that confuses me is that we also use electrical input as dc current which goes through rotor windings to
make ...
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Is the per-unit internal voltage equal to the ratio of field current to no-load field current?
An example problem provides the following information to solve for the field current.
The problem is below.
A large 60 Hz synchronous generator can be considered to be round rotor, that is, xd = xq = ...
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How to measure the frequency of a low frequency signal?
I am looking to measure the rpm of a wind turbine,
the wind turbine is 3-phase synchronous generator,
the frequency range I am looking to detect is between 1Hz to 60Hz,
I tried to use a frequency ...
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3 phase synchronous machine with salient rotor inductances and resistances measurement
I am trying to find if the following method to determine experimentally 'natural' inductances and resistances (not synchronous, transient, subtransient etc..) of a synchronous generator is valid ...
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Simple transient simulation model for synchronous generators
I am writing a simple transient circuit simulator as a personal hobby/experiment. My ultimate goal is to develop a simple 2D game for teaching/learning concepts of power systems in an intuitive way. I ...
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How to obtain the excitation voltage of a synchronous motor rated in horse power?
The synchronous motor rated at 120 hp, 460 V and 0.78 p.f-leading. The synchronous reactance is 2.51 Ω and armature resistance is 0.023 Ω. Since no frequency given in the question, how do we obtain ...
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Unexplained current perturbation with 3 PWM PMSM control
I encountered some problem of current measurement using the DRV8323RH to drive a PMSM motor in 3xPWM mode.
I am running a test under the following conditions:
1 DRV8323RH gate driver configured in 3 ...
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Synchronous motor: intuitive explanation of f = 120/PN
In synchronous motors, let f be the frequence, P the number of poles and N the number of tours per second:
$$f = \frac{120}{PN}$$
I don't understand this relation at all. In my opinion, the more ...
user328798
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Why am I getting Torque although stator and rotor fields are aligned?
I am working on a synchronous machine simulation project using FEMM. I am trying to find the rotor position that produces 0 torque. According to my understanding, this happens when both the rotor and ...
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Effect of phase current on magnetic flux density in synchronous machines
I am working on a project on synchronous machines and I am testing different phase current values and observing the magnetic flux density in different parts of the machine, such as teeth, stator yoke, ...
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Does Back EMF change according to stator current in SM?
The concept of Back EMF always confuses me in Synchronous Machines. If I have a synchronous machine and I manually rotate at "x" rpm, do I get the same back EMF as when I excite the stator ...
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modelling and simulation of a motor generator set for the replacement of diesel engines
Can a motor-generator set with specifications and outputs as shown in the picture below be used to power a 16 kW, 220V house?
user313612
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How are AC voltage regulation and overexcitation both accomplished in an AC synchronous motor?
Help me see what I'm misunderstanding here. I see a contradiction between the following two principles:
An AC voltage regulator attached to an AC synchronous motor will regulate terminal voltage. If ...
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