Axially laminated anisotropic (ALA) rotor reluctance synchronous motor (RSM): comprehensive experiments characterization

All electric machines used in variable speed drives require a comprehensive testing sequence routine. ALA-rotor RSM (Reluctance Synchronous Machines) - for their high and robust magnetic saliency, and consequently higher torque density, better power factor, lower KVA rating of the PWM converter and large CPSR (constant power speed range) imposes a set of tests at prototyping level which has a few distinct particularities. They may be divide in: a) standstill tests (dc current decay + ac test) for parameters measurements (in essence d, q flux current curves and q axis flux density harmonics rotor core small losses), b) running tests without inverter (capacitor excited generator, and motor on load at ac sinusoidal power source). The above-mentioned tests are described in detail and applied on an ALA-RSM 10kW prototype from 0 to 4.8 krpm. A comprehensive, step-by-step experimental procedure is given in detail with various hints for experiments, both for dc-decay and ac standstill tests.