High-Voltage Laboratories
Test laboratories for future drive electronics and charging technology
High-Voltage Laboratories
Test laboratories for future drive electronics and charging technology
Technical Specifications of the high-voltage laboratories
Technical Specifications of the high-voltage laboratories
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In the VISPIRON SYSTEMS high-voltage laboratory, we carry out comprehensive tests on inverters and charging components.
Test services in the high-voltage laboratory
With a focus on customised testing of power electronics. Examples of test fields: HV-type testing, environmental and durability qualification, EMC testing, LV124 fuse protection.
- Deployment of voltages in the entire low-voltage range for the simulation of different voltage levels.
- Couplable multiphase three-phase systems.
- Active load in the form of emulator inverters for phase currents up to 650A.
- Supply of media temperature control for effective heat dissipation.
Test services in the high-voltage laboratory
With a focus on customised testing of power electronics. Examples of test fields: HV-type testing, environmental and durability qualification, EMC testing, LV124 fuse protection.
- Deployment of voltages in the entire low-voltage range for the simulation of different voltage levels.
- Couplable multiphase three-phase systems.
- Active load in the form of emulator inverters for phase currents up to 650A.
- Supply of media temperature control for effective heat dissipation.
Rely on a partner with multiple years of experience.
Have your components put to the ultimate tests and make your decisions on the foundation of valid test reports and analyses.
Quality and maturity
Determine the quality and maturity of your components reliably and validly.
Speed
Achieve clearance faster through reliable test results.
Efficiancy
Bundle in-house resources through access to external test infrastructure.
Partnership
Realising individual requirements thanks to a flexible partnership.
Build on additional test capacities for the growing electromobility market.
What does the setup of the VISPIRON SYSTEMS HV-lab look like?
Under the following link, you can see a schematical representation of the structure of the VISPIRON SYSTEMS high-voltage laboratory.
Why is an e-machine emulator used?
A widely used method to validate the function of an inverter for traction engines is to use a Hardware-in-the-Loop (HiL) test rig. The HiL-test rig recreates the properties of the electrical machine and the vehicle by emulating the sensor signals and bus communication accordingly. With this type of fusing, however, only the electronic control system and its software are tested. Influences caused by power electronics and their aging cannot be validated with this.
An electrical machine emulator is in itself an extension of the HiL. The emulator recreates the electrical and mechanical behaviour of an e-machine with the assistance of a filter network and an emulation inverter. In addition to the control electronics and software, the power unit of the inverter can also be actively loaded. Additionally to the HiL, this enables the entire hardware of the inverter to be validated.
Why have been 2 couplable 3-phase e-machine emulations been used?
The 3-phase three-phase system is the standard power system for the high-voltage supply of the electric motor in the automotive sector. To increase system efficiency, in addition to increasing phase currents on the 3-phase system, a 6-phase system with constant phase currents can also be used. With these 6-phase three-phase current systems, an improvement in costs, space, weight, EMC and acoustics can be achieved in addition to the increase in performance.
VISPIRON SYSTEMS offers a solution for both systems with the HV lab. Therefore, up to two 3-phase DUTs or one 6-phase DUT can be tested parallel at the HV-lab.
In which temperature range do HV tests take place?
The high-voltage lab of VISPIRON SYSTEMS is easily adaptable. It is possible to carry out tests in the range from -70°C up to +180°C ambient temperature, as well as from -50°C up to +220°C coolant temperature. However, these limits are not regularly maxed out.
In the automotive sector, HV control units are often designed for installation room temperatures in the range of -40°C to +120°C. Usually, the active operation towards these limits, among other things for reasons of durability, are severely restricted (derating). Since most electrical tests are to be carried out with a fully operational system, the temperature range of -25 °C to +80°C is rarely exited.
Why should the development phase be validated?
The aim of fusing is to validate the product maturity and to uncover any existing errors.
Since new errors can arise during the entire development process, it is useful to detect and correct the errors of the respective development phase directly. Generally, the cost of fixing an error increases as the development phase progresses (“Rule of Ten”).
For example, errors discovered in the concept phase can be corrected much more cost-effectively than shortly before the launch on the market.
How is safety handled in the high-voltage lab?
Read all about safety measures and sources of danger in the high-voltage lab in our interview with our responsible electrician.
Do you have any further questions?
We are happy to advise you and coordinate the test set-up for your component with you.
Benefit from more performance, improved quality as well as a longer service life for your components.
Read more about our exciting customer projects in our success stories.
Temperature Change Testing for Electronic Components
Testing of Power Electronics in the High-Voltage Laboratory
I'm looking forward to get in touch with you.
Manuel Kroh
Senior Business Development Manager
Call right away
Telefon: +49 176 15297008