Interaction between motor and frequency inverter
In the seminar, you will learn how a drive consisting of an induction or synchronous motor and a frequency inverter can be optimally harmonised. Here are the contents:
- Basics of electrical machines (electric motors)
- Frequency converters (inverters) and systems for variable-speed operation (drive technology)
- System design for suitable inverter and motor selection
- Voltage adjustment and output variables of the frequency inverter
- Losses during grid feed-in and inverter feed-in (influencing factors and avoidance)
- Optimisation of efficiency characteristics
- Damage patterns and bearing tensions
- Causes and types of bearing currents
- Measurements and methods of prediction and remedial measures
- Grid perturbations
- Magnetic noises
- Methods of forecasting
- Permissible noise limits
- Noise analysis to avoid magnetic noise
On the topic
The use of frequency inverters to optimise motor operation (electric motor) is becoming increasingly important (electromobility, industrial drives). Modern frequency inverters can be used for almost all drive tasks that previously required regulated DC drives. The variable-speed operation of electric motors (drives) helps to increase energy efficiency. As production becomes increasingly automated, performance increases thanks to variable speed solutions that enable improved process control.
Objective
The seminar teaches participants how to harmonise a drive system (drive technology) consisting of an induction or synchronous motor drive and a frequency inverter. In this training course, they will learn what needs to be taken into particular consideration and which technically important interactions and interference effects can result from the interaction between the three-phase motor and the frequency inverter.
Participants
System managers, i.e. the users or OEMs who bring together purchased components such as motors and inverters, as well as engineers with experience in the field of e-machines or inverters who want to expand their knowledge of the possible interactions with the other system components. Expertise in electrical engineering is a prerequisite.
Speakers
Bernd Eilers
BLOCK Transformatoren-Elektronik GmbH
Institut für Antriebssysteme und Leistungselektronik, Leibniz Universität Hannover
Institut für Antriebssysteme und Leistungselektronik, Leibniz Universität Hannover