Test arrangement for testing a power electronics controller

A test arrangement for testing a power electronics controller, the controller comprising:

• supply connections for power supply and load connections for controlling an electrical load;
• and
• at least two power electronics modules that each have a supply connection for power supply, at least one load connection to provide at least one electrical connection size, and an interface to control the power electronics module,
• wherein, in an operational state of the test arrangement the supply connections of the controller are each connected to the load connection of a power electronics module on the supply side for the provision of an electrical connection size at the supply connections of the controller,
• wherein, in the operational state of the test arrangement, the load connections of the controller are each connected to the load connection of a load-side power electronics module for the provision of an electrical connection size at the load connections of the controller, the supply connections of the supply-side power electronics modules and the supply connections of the load-side power electronics modules being connected to each other via an intermediate electrical network, and the interfaces of the supply-side and the load-side power electronics modules being applied with control values by at least one controller for setting electrical connection sizes at the load connections of the power electronics modules,
• wherein an intermediate network current flowing in the intermediate network is determined by the controller, and
• wherein the controller changes at least one control value of at least one of the load-side power electronics modules such that when the interface of the load-side power electronics module is applied with the modified control value, the intermediate network current is reduced.