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 PW8001 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.

Instruments Used

POWER ANALYZER PW8001

POWER ANALYZERPW8001

・High Precision Power Analyzer for Motor and Inverter Efficiency Analysis

・Up to 8 power channels optimizing your measurement

・World-class measurement accuracy: Basic accuracy ±0.03%

・Simultaneous analysis of 4 motors (optional)

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AC/DC CURRENT SENSOR CT6875A, CT6876A

AC/DC CURRENT SENSORCT6875A, CT6876A

・500 A AC/DC, DC to 2 MHz (CT6875A)

・1000 A AC/DC, DC to 1.5 MHz (CT6876A)

Learn More about CT6875A Learn More about CT6876A Download Brochure

Technical Articles

Identification of PMSM Motor Parameters with a Power Analyzer

Method for Identifying PWSM Parameters Using the Power Analyzer PW8001

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