TMS320F2800137: 1200hz 失步,

Part Number: TMS320F2800137

Hello, I'm using the original program at C:UsersTI_FUZAIuniversal_motorcontrol_lab_f280013x, and I found that when loaded up to around 1200Hz, the phase current suddenly increases. I checked the driver and found no abnormalities, so I feel there might be a software issue. I’ve tried changing the PI and bandwidth, but it didn’t make much difference. I’m using a single fast observer. Any suggestions? The motor has 20 pole pairs, and the phase voltage cutoff frequency is 388Hz.

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