Grid Simulators

General Overview

The public grid maintains not permanently the rated nominal values in terms of voltage, frequency or harmonic content. Therefore each electric/electronic equipment to be connected to the grid must be able to withstand certain deviations from the nominal values without damage or unexpected malfunction. Of course, these situations need to be tested according to a number of national and international test conventions and regulations.

Grid Simulation is the method of generating a 1- or even 3-phase artificial grid by electronic means in order to have a strong influence on the shapes of voltage, frequency, harmonic content and phase relationship. While up to now power amplifier techniques were used for Grid Simulation, today’s technology uses fast switching topologies instead of the very lossy amplifiers. As a further highlight, an upper class grid simulator is able to manage both energy flow directions: Energy flow from the Simulator towards the load and vice versa.

REGATRON TC.ACS Grid Simulators Series TC.ACS use the newest multi-level inverter technology for high-resolution voltage/current patterns. By this, the Simulator is able to cover the entire fundamental frequency range from DC up to 1000 Hz and up to 5000 Hz modulation bandwidth. A specialised multi-processor core prepares all relevant voltage/current shapes in a real-time mode in order to ensure very stable phase relationship and event timing throughout the structure.

The excellent TC.ACS hardware is supported at one hand by the basic Application software ACSControl (scope of delivery), at the other hand by the optional GRIDSim software, which covers all imaginable application needs of the ambitious engineer. Even automated test runs or predefined grid patterns are within a few clicks of your fingers.

REGATRON TC.ACS Grid Simulators at a glance:

  • Setting of operational parameters for each output phase: (frequency, phase, voltage, basic waveform)
  • Defining functional blocks enabling a wide variety of modulation capabilities
  • Defining, editing and storing of even complex and long test sequences
  • Preview window for output voltage waveforms
  • New RLC load mode, definition of complex equivalent circuits in TC.ACS load mode
  • Hand drawing curve tool and FOURIER tool (harmonics synthesis)
  • Coming soon: Grid impedance mode

REGATRON TC.ACS in the fields of R+D and High Level Education

R+D Engineering as also Educational Applications call for some particular properties of the related equipment. One of the most important demands is a maximum flexibility of both the programming as also the simulator’s output structure. TC.ACS offers maximum flexibility by a really unique block programming mode taking into account even the smallest output parameter; on the other side the output structure is made up by a total of four (!) fully controlled output rails. By this, not only all well-known 1- to 3-phase structures may be simulated. As an additional hint the 4th rail can be defined as fully controlled Neutral N with defined reference in voltage and phase angle against the other three phases. Moreover, the four rails may also be used to create a 2-phase 4-lead system with freely programmable phase/voltage relationship.

TC.ACS disposes of an extensive safety concept in order to detect unwanted or off-limit conditions very quickly and to initiate controlled limiting or even a shutdown.

REGATRON TC.ACS High Power Systems

By highly specialised synchronising techniques, TC.ACS base units may be parallelized easily to a maximum system power of 1 MVA. Therefore, a TC.ACS test and Development system may grow according to your needs or may be split up into several smaller systems at any time. Note that each TC.ACS unit is fully independent and contains all necessary firmware to act as single unit or as Master or Slave unit in a multi-unit system.

TC.ACS Grid Simulator → more

GridSim Application Software → more