Name: Multilevel Highspeed Inverter MLI 110 1.1
Availability: InStock

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Multilevel Highspeed Inverter MLI 110 1.1 descriptions

Turbo speed and system costs under control. Our multi-level technology enables us to keep very high motor and generator speeds of up to 150,000 rpm safely under control.

The control technique and high PWM frequencies reached result in considerably lower rotor losses in the electrical machine, thus leading to a significant reduction in system costs.

Multilevel Highspeed Inverter family undergoes double inspection in the production.

Key features

Multilevel Highspeed Inverter MLI 110 1.1 has compact design

High power density

Liquid-cooled, inlet temperature < 60°C (under full load conditions)

Interface to higher-level control system (CAN open/J1939)

Field-proven sensorless speed and torque control

Temperature monitoring interface

Motor position interface

Digital Signal Processor with high control performance

Integrated EMI filter

DC voltage measurement and supervision

Three phase current measurements

Three phase voltage measurements

IP67 enclosure

MLI Technology

Drivetek has been applying multilevel technology to high-speed inverters (MLI) for e-motors spinning up to 180'000rpm since 2012. MLIs are used for air compressors, electric turbochargers and heat recovery applications

MLI technology provide cost advantage using standard IGBTs

Through the high PWM frequency and additional voltage level, lower pulsations of the magnetic field can be achieved, this leads to significantly lower rotor losses (eddy currents)

Due to the series connection of the switches, the voltage on each switch is only half of the DC Link voltage (e.g. 900V DC Link can be realized using a 600V class IGBT)

Multilevel technology allows significantly more complex control and error handling than 2-level architectures such: a) additional degrees of freedom, b) avoid 'dangerous' power-off states in case of errors and c) control of the 'N' point

To date, Drivetek has delivered several thousand units for a wide range of mobile fuel cell applications worldwide.

Drivetek has implemented all the tools to safely control multilevel inverters.

Drivetek's proprietary QUASAR SW platform and Q-Control SW allow more than 300 parameters to be managed freely.

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Type of input current	DC
Brand	BorgWarner
Type of Cooling	Liquid Cooled
Max Input Voltage (in V)	800
Min Input Voltage (in V)	200
Max Current (in A)	110
Electronic Control Interface	CAN, CAN J1939
Max Stator Frequency (in Hz)	2500
Max Switching Frequency (Hz)	35000
Ingress Protection Rating	IP67
Manufacturing Readiness (MRL)	0
Technology Readiness (TRL)	0
Max Ambient Temperature (in °C)	85
Min Ambient Temperature (in °C)	-30

Multilevel Highspeed Inverter MLI 110 1.1