Maximize Power Conversion
Efficiency improvements in the development and compliance cycles mean a faster route to production and sales. Yokogawa Test&Measurement has the tools that enable test engineers to more effectively analyze electric charging systems, from board to system level. Whether you are benchmarking efficiency, troubleshooting power electronics, or ensuring compliance, explore our specialized suite of solutions for EV charging systems.
Charging systems require specialized instrumentation purpose-built to perform key measurements at a system’s input and outputs. Selecting the best instrument for each application depends on the level of accuracy required, the number of channels needed, and the type of signal being acquired.
Choosing the Right Instrument for Power Quality and Energy Efficiency - Power Compliance, Efficiency, and Harmonics Tests
Application Note
Three variables to consider are measurement type, measurement standard, and instrument type. This guide defines these variables and provides helps to select the best instrument for your application.
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Power Quality and Energy Efficiency for Power Measurements
White Paper
More than 40% of the total energy consumed in the United States is used to operate buildings. This white paper explains the relationship between power efficiency and power quality and identifies causes and types of power quality issues.
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eBook
Electricity Applied
A handbook of common applications and key measurement parameters.
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Case Study
Solar Team Twente
Accurate power analysis boosts solar race car's range and speed
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To best utilize SiC devices for improved energy efficiency in equipment, it is important to optimize the internal device peripheral circuits in the inverter according to the device characteristics.
Measurement guidance related to field-oriented control (FOC) of electric motors with example use cases that illustrates how this is accomplished using a power analyzer and/or a ScopeCorder. Specifically addressed are direct and quadrature currents of a surface-mounted permanent magnet motor (SMPM) with field weakening applied. The techniques illustrated can also be applied to other FOC variables, algorithms, and motor technologies.
With increased focus on reducing energy consumption and compliance with efficiency standards, this app note provides an overview on the types of measurements needed for efficiency and power quality, and the instruments that take them.
- Power consumption/quality measurements for product design and test
- Design, compliance, and customer information
- Best practices
- Instruments and components
Designing an instrumentation system for high current measurement requires careful consideration of the trade-offs associated with each type of sensing device. The purpose of this application note is to help engineers understand the sensing choices available and the corresponding trade-offs with each technology.
The objective of this paper is to show the close relationship between efficiency and power quality, and provide education on the causes of power quality, types of power quality issues, and provide guidance on measurement considerations.
How-tos
- Measuring Individual Phase Power on Three Phase Systems
- Standard Delta computation function
- Available on Yokogawa WT5000 Precision Power Analyzer
This video demonstrates how to measure transient phenomena on power signals using the Yokogawa Test&Measurement PX8000 Precision Power Scope.
In several applications, especially those testing AC power to a standard such as IEC61000-3-11, the voltage and current signals must be monitored to confirm there are no major dips and/or swells in the signal. This can be done with instruments capable of reporting rms values, including power analyzers, traditional oscilloscopes, and some data acquisition systems.
To test to a standard, however, the instrument must have an accuracy spec that is traceable back to a national standard of calibration such as ISO17025 or NIST.
Webinars
- How to avoid the “gotcha's” of inverter-based measurements
- Computations for field-oriented control
- The integration of CAN bus communications
- Correlations in the frequency domain
- Other advanced motor and drive topics
- A look at multi-phase measurements and measurement techniques
- A review of practical applications
- Real-world examples
- Multi-phase measurements
- Measurement techniques
- Measurement applications
- Real-world examples and more
You know the basics of electrical power measurements, have set up your dyno, and made key measurements – which is great. But as your motor and drive projects progress, the complexities of system drive requirements can change frequently. Control algorithms, networked communications, and mechanical systems form a complex web of interactions that need sorting. This 60-minute webinar explains how to get past ground-level measurements and delve into comprehensive solutions that leverage test and measurement instruments including power analyzers, high-speed data acquisition, and real-time software.
Topics include:
The technical presentation includes an audience Q&A.
Although DC power measurements can be fairly straightforward, complexities with AC power measurements arise when dealing with distorted waveforms, fluctuating power factors, and multiple phases, which introduce intricacies that complicate an otherwise simple measurement process.
This on-demand webinar provides an informative dive into the various fundamental aspects of power measurement and includes:
Why should you be concerned with your product’s power system voltage and current harmonics? From an engineering perspective, harmonics produce excessive heat in equipment that causes significant damage and results in inefficient operation. From a business perspective, compliance is an absolute requirement for entry into global markets. To minimize or eliminate these issues and establish acceptable levels of harmonics, numerous power quality standards with specifications and limits for harmonic distortion, such as IEEE 519-2014 and IEC61000-3-2, have been introduced. During this webinar, attendees will gain knowledge on the inner workings of harmonics, learn best practices for accurately measuring harmonics, learn to recognize and distinguish the critical difference between DFT and FFT, and discover important measurement tradeoffs across various test equipment.
While DC power measurements are relatively straight forward, AC power measurements that include distorted waveforms, varying power factors, and multiple phases can add complexity to an otherwise simple measurement. During this webinar, we cover multiple fundamentals of power measurement.
Key topics include: