Identifying PMSM Motor Parameters

Identify more accurate motor control motor control by using motor parameters measured under actual operating conditions in upstream design processes.
PMSM:
Permanent magnet synchronous motors (PMSMs) have been attracting attention in recent years as a type of 3-phase AC motor that can deliver low energy loss and significantly reduced power consumption.

Measurement Example

* Please prepare the torque sensor and rotary encoder separately.

Identifying Advanced Motor Control

In order to identify advanced motor control, it is necessary to take into account the current dependence of the d-axis and q-axis inductance Ld and Lq, which in the past were treated as constants. The PW6001 can carry out d-axis and q-axis vector analysis of voltage and current during motor operation. Since that data can be used to calculate Ld and Lq in real time, it is possible to measure the current saturation characteristics of motor parameters.

Equipment Used

POWER ANALYZER PW6001

POWER ANALYZERPW6001

・Provides electrical angle measurement functionality that is needed to analyze vector control.

・Can display voltage and current vectors based on the d- and q-axes.

・Provides user-defined numerical calculation functionality that is useful when measuring motor parameters.

Products Page Brochure

AC/DC CURRENT SENSOR CT6875, CT6876

AC/DC CURRENT SENSORCT6875, CT6876

・500A AC/DC, DC to 2MHz(CT6875)

・1000A AC/DC, DC to 1.5MHz(CT6876)

・Basic accuracy (power) of ±0.048%

Products Page Brochure

Technical Article

dentification of PMSM Motor Parameters with a Power Analyzer

Identification of PMSM Parameters with the Power Analyzer PW6001

You can download a catalog that summarizes the applications introduced on the special site.

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