![]() ![]() In order to determine the performance and characteristics of PMSMs, a loading facility is required for the load test. With the advantages of small size, high efficiency, and high reliability, permanent magnet synchronous motors (PMSMs), especially high-speed PMSMs, have been used extensively for distributed generation and industrial drives in recent years. In addition, with the proposed sensorless VC method, both the MUT and the LM can work at i d = 0 without a position sensor. During the test, the energy regenerated by the LM could be fed back to the MUT by the regenerating unit, and 81.31% electrical power was saved. ![]() As a result, the efficiency test system achieves the load test at the speed of 21000 r/min without any reduction equipment. Experiments were carried out on a prototype, with a digital controller based on the TMS320F28335, to verify the adequacy of the sensorless VC method. Also, a regenerating unit is used to implement energy circulation to save energy. A new sensorless vector control (VC) method based on a hypothetical reference frame is presented to control both the MUT and the LM. In the system, two identical high-speed PMSMs are used as the motor under test (MUT) and the load machine (LM), respectively. We present a sensorless efficiency test system with energy recovery for a high-speed permanent magnet synchronous motor (PMSM). ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |