Measurement Minute: Episode 9

Traditional power measurement can miss motor dynamics and hide issues in the performance. Learn how dynamic, half-cycle power analysis provides deeper insights to improve efficiency and accelerate product development.

Beyond the average: why your electric motor analysis is missing the full picture

When it comes to electric motor testing, are you seeing the complete story? For years, the standard approach has been to average power measurements over long periods. While simple, this method hides crucial details about what’s happening from one moment to the next. This lack of insight can conceal significant performance issues, slowing down troubleshooting and innovation.

If your analysis relies only on long-term averages, you are missing dynamic events that define a motor’s true performance. You can’t see if your controller is operating in a stable way or if you have small fluctuations in your operation. Most importantly, you lose the ability to understand how the motor behaves in real-world scenarios like vehicle drive cycles, aircraft flight cycles, or even startup sequences.

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A more dynamic approach to power measurement

To solve this problem, a more dynamic approach is needed for comprehensive electric motor testing. At HBK, we utilise a proprietary cycle detect algorithm that transforms motor analysis. Instead of blurring performance data over long intervals, this method calculates electric power, performs detailed harmonic analysis, and other critical metrics on a half-cycle basis.

This high-resolution view allows you to see exactly where the power in your motor is going as its torque and speed change in real time.

The benefits of seeing the whole picture

Adopting a dynamic power analysis workflow delivers tangible benefits for engineering and product development teams:

Accelerated troubleshooting: By correlating power fluctuations with specific torque and speed changes, you can instantly pinpoint the root cause of inefficiencies or failures
True efficiency insights: Understand your motor’s power consumption and efficiency under the variable loads it will face in its actual application, not just in a static test environment
Faster product optimisation: Armed with precise data, you can make smarter design decisions, validate improvements more effectively, and ultimately create a better, more reliable product in a shorter amount of time

In today’s competitive landscape, settling for an incomplete view of performance is no longer an option. By moving beyond averages and embracing dynamic, half-cycle analysis, you can unlock the true potential of your electric motors.

Ready to enhance your testing and analysis?

Discover how with HBK’s dynamic power measurement solutions.

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Measurement Minute: Episode 9

Beyond the average: why your electric motor analysis is missing the full picture

A more dynamic approach to power measurement

The benefits of seeing the whole picture

Ready to enhance your testing and analysis?

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Dynamic Power Measurement

Electric Powertrain Control and Calibration for Automotive Manufacturers and Tier 1 Suppliers

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