Geothermal power offers a stable, continuous source of renewable energy that could help power millions of homes while reducing dependence on fossil fuels. As governments worldwide pursue ...

Alternating-current (ac) generators are commonly referred to as synchronous generators or alternators. A synchronous machine, whether it is a generator or a motor, operates at synchronous speed, that ...

As more wind and solar generation is added to the power grid and large coal and nuclear plants are retired, a reduction in reactive power is becoming a concern. Underutilized gas and steam turbines ...

A group of researchers in Australia has outlined a new methodology to determine the minimum power rating of energy storage systems (ESSs) used for emergency under-frequency response. The ESS size must ...

Engineering efforts to simulate radial-flux machines concentrate on inherently 2D problems. Most of the 2D FEA software is good for "quick-and-easy" solutions demanded by shorter design schedules.

A synchronous and synchronous motors are the two main categories of ac motors. The induction motor is a common form of asynchronous motor and is basically an ac transformer with a rotating secondary.

Stepper motors are synchronous motors that step at the pulse rate of the driving signal. For the motor to move quickly, the stepping rate must be fast. However, because of motor and load inertia, the ...

ABB large motors factory in Sweden explained how it is trying to reduce waste by improving motor efficiency. Even though the gains are very small, from 98.64% to 99.13%, this small increment can lead ...

Feb 1, 2008 12:00 PM, By Larry A. Bey, Cummins Onan Corp. You've lost normal power. Your engine-generator set (gen-set) starts up and reaches speed. Now, you want to start some large motors key to ...