Analyses Offered
- Adapted to both Synchronous Motor and Generator: The structures of the salient-pole synchronous motor and the generator are basically the same, but their phasor relationships and the computation methods are slightly different, their output characteristics data are also different. Therefore, RMxprt divides the synchronous machine into two design modules: Synchronous Motor and Synchronous Generator.
- Auto Arrangement of Three-phase Windings: Almost all commonly used three-phase single- and double-layer, half- and whole-type ac windings (including fractional-pitch windings) can be automatically arranged. Users do not need to define coils one by one. RMxprt also supports a double-layer winding with half-turn coils, which are auto-arranged in the order of even, odd, even, odd, …, and even, odd, as long as it is physically possible.
- Winding Editor Supporting Any Single- and Double-Layer Windings: Besides taking advantage of the winding auto-arrangement function in RMxprt, users can also specify any special winding by using of the Winding Editor function.
- Analyze Air-Gap Magnetic Field Distribution: For both uniform and non-uniform air gaps, Schwarz-Christopher Transformation is adopted to solve for the air-gap magnetic field distribution.
- Analyze EMF Waveform and Total Harmonic Distortion (THD): Based on the analysis of the air-gap magnetic field waveform, taking into account coil short pitch, winding distribution, skew slot, winding connection, load effects and other factors, the emf waveforms in the coils and the windings are analyzed to solve for the emf distortion factors.
- Analyze Dynamic Parameters of Damping Winding: Different from the squirrel-cage winding of the induction machine, the damping winding of the salient-pole synchronous machine is located in the surface of magnetic field poles, which deviates greatly along the d- and the q-axes. Furthermore, the connection of damping bars has several forms. The bars under each pole could be connected, but not connected with those under other poles. All the bars could be connected together. The bars could be connected through end-plate. RMxprt can deal with all those complicated situations and give the dynamic parameters for the damping winding.
When a designer adopts single-layer whole-coiled windings, RMxprt will perform winding arrangement optimization to minimize the average coil pitch. When asymmetric three-phase windings are used, winding arrangement is optimized in such a way that minimum negative-sequence and zero-sequence components are achieved.
In the Winding Editor, through modification of phase belonging, number of turns, in-slot and out-slot number of each coil, it is possible to design single- and double-layer winding arrangements for any purposes.