In the test of permanent magnet wind turbines, the frequency conversion test system must have the following characteristics:
1. Low-frequency fundamental wave test function in a wide frequency range.
Broadband means that it contains harmonics, and low frequency means that the fundamental frequency is very low, as low as 1Hz.
2. Wider current test range.
The no-load current of permanent magnet motors is very small. The no-load current of large-capacity units is only about 0.005~0.01 times the rated current. The overload current must also be tested. The maximum current is often 200~300 times the minimum current. Times
The AnyWay broadband power test system developed by Hunan Yinhe Electric Co., Ltd. can better meet the frequency conversion test needs of permanent magnet wind turbine test benches. Domestic large wind power companies such as Goldwind Technology, Dongfang Electric, Xiangtan Electric, and China South Locomotive & Rolling Stock Corporation all use this test system.