WindGuard Certification now offers a complete package of electrical characteristic measurements on power generating units, such as wind turbines, photovoltaic systems, energy storage facilities and internal combustion engines. For this purpose, the experts from Varel have just introduced a new mobile test unit for dynamic performance. WindGuard Certification offers manufacturers not only the certification of prototypes, but also all measurements necessary to obtain the required proofs according to VDE-AR-N 4105, VDE-AR-N 4110, VDE-AR-N 4120 and IEC 61400-21-1.
The new test unit allows fault-ride-through (FRT) test procedures to verify dynamic grid support according to applicable guidelines such as FGW TR3, IEC61400-21-1 and the latest revision of DIN VDE V 0124-100 published in June 2020. This test standard requires a proof of grid stabilizing abilities even on smaller power generating units intended to be connected to the low-voltage grid. “Thanks to the compact design of our new mobile test equipment, we can now conduct the required dynamic performance tests directly at the customer’s site or at the location of his prototype”, says Damian Slowinski, head of testing laboratory at WindGuard Certification. “Our FRT test system simulates fault conditions in the public grid. Using the recorded measurement data, we check whether the power generating unit reacts as required and if it returns to normal operation after fault clearance without disconnecting from the grid.” The unit allows the configuration of a wide range of fault conditions – for example, the undervoltage drop depth and the overvoltage excess are variably adjustable. Even two-phase faults are possible.
“Thanks to our mobile testing service, our customers gain notable time and cost advantages,” Damian Slowinski adds, “it is no longer necessary to transport the test object to a stationary test laboratory. In addition, during development of the new test unit, we paid particular attention to ensuring a quick configuration and execution of individual tests. Furthermore, the new
evaluation software developed by WindGuard Certification provides real-time feedback. Finally, the entire dynamic performance tests can be completed in just a few days.
The new mobile test unit allows verifying the dynamic performance ability of power generating units up to a nominal capacity of 1 MW in accordance with all current guidelines and standards.