TC.ACS is a series of full digital, full 4 quadrant 3-phase AC power sources with exceptional programming features. Each TC.ACS unit represents a three-in-one configuration:

• Versatile synthesized 3-phase grid simulator with 4 fully controlled active outputs. Operation mode setting per comprehensive software tools. Note the fully active N-connection available at the Simulator Port.
• Built-in full 4-Quadrant 1 to 3-phase power amplifier with outstanding qualities, 3 independent and galvanic isolated amplifier inputs, especially suited for high bandwidth HIL applications within the power laboratory, assisted by an external RT processor.
• Programmable RLC-load mode (electronic AC load with grid recuperation) to substitute real and bulky resistors, inductors and capacitors. Reactive power is recuperated into the 3-phase grid with maximum efficiency.

The multi-level inverter technology common with a remarkable high switching frequency opens up a wide base frequency range from DC up to 1000Hz and an exceptionally high modulation bandwidth of 5 kHz. Therefore, harmonic distortion up to the 100th harmonic @ 50 Hz or the 83th harmonic @ 60Hz can be exactly reproduced, assisted by a comfortable Fourier tool. Of course, the system can easily and comprehensively be adapted to the various tasks to be carried out within the fields of R+D, laboratory, end-of-line testing and education.

Applications

By means of the application software ACSControl and various software options, the user is enabled to program the following parameters:

• Variation of basic system voltages and frequency
• Settings of phase relationship
• Voltage drops in the whole network or individual drops per phase
• Micro ruptures and flickers
• Over- and under voltages
• Voltage asymmetries
• Superimposed harmonic and interharmonic voltage waveforms
• Variation of phase angles
• Special conditions for EMC testing
• Transition from feeding to recuperation operation and vice versa
• Analyses of energy flow