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제안 방법
- When the proper motor drive is absent, however, these inductance test methods become unavailable. Considering the practical requirements, this paper proposes a simple method to measure the d- and qaxis inductance of IPMSM. It is processed in standstill condition so that the dynamometer is not necessary.
- In [1] a method called AC standstill is introduced. This method applies a single phase AC voltage source to one phase motor winding, and measures the currents and voltages of this phase and another phase in order to calculate the self- and mutual-inductances, and further calculate d- and q-axis inductances with them. It is called standstill because the rotor is locked at each test position.
- Two IPMSMs with concentrated winding and distributed winding are analyzed and tested in this paper to verify the applicability of the proposed method. The cross-sections of these two motors are shown in Figs.
대상 데이터
- 1(a). The total experiment devices include a 50-Hz 3- phase AC source, a 4-channel oscilloscope, a vice grid pliers, and a DC voltage generator.
이론/모형
- The inherent drawback and complicated system configuration make the existed IPMSM inductance test methods not always available. Based on these problems, this paper proposed a relatively simple experiment method to meas ure the d- and q-axis inductance of IPMSM. In the stationary frame of reference, the relationships between the d- and q-axis inductances, and the 3-phase voltages and currents are derived.
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