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The project objective was the development and subsequent production of a highly efficient, speed and torque stable (vector control), fanless double frequency OEM inverter with 1 kW continuous power and 50% overload capacity per motor.
Also noteworthy is the rough application area (including dirt, conductive dust) as well as the additionally integrated periphery (sensors, actuators, stepper motor, bus connection).
The inverter can be operated on 230 V AC mains and can be optionally equipped with a PFC (Power Factor Correction). This allows for lower mains feedback and also the wide voltage range (90 V-264 V).
The project objective was the development of a waterproof double frequency inverter for the most adverse conditions, for controlling an axle damping test bench in car repair shops.
Due to the use under particularly harsh environmental conditions – rainwater, oil or other liquid losses – the housing had to meet IP67.This meant that the cooling system had to be implemented without fans or ventilation slots. Further requirements were a fast and physical check of the axle damping, an automatic test bench start after loading of the test plates, a fully automatic test sequence, as well as the possibility of frequency-controlled noise search.
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