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MCF8316A: 固定转速转动电机

Part Number: MCF8316A

可以固定电机转速转动吗,目前我发现一旦加了负载之后速度就突然变大了(有的时候速度变大,电流也变高,还会报ABnormal BEMF错误),这是我的一份参数json,麻烦能提供点意见,非常感谢

{
  "signature": "oneui-register-data",
  "data": [
    [
      {
        "idx": 0,
        "id": "isd_config",
        "value": "0x40000000"
      },
      {
        "idx": 1,
        "id": "rev_drive_config",
        "value": "0x2835917F"
      },
      {
        "idx": 2,
        "id": "motor_startup1",
        "value": "0x0B6A07D0"
      },
      {
        "idx": 3,
        "id": "motor_startup2",
        "value": "0x2B066A90"
      },
      {
        "idx": 4,
        "id": "closed_loop1",
        "value": "0x0C318134"
      },
      {
        "idx": 5,
        "id": "closed_loop2",
        "value": "0x1AADA57D"
      },
      {
        "idx": 6,
        "id": "closed_loop3",
        "value": "0x1C800003"
      },
      {
        "idx": 7,
        "id": "closed_loop4",
        "value": "0x0EA3831E"
      },
      {
        "idx": 8,
        "id": "speed_profiles1",
        "value": "0x00000000"
      },
      {
        "idx": 9,
        "id": "speed_profiles2",
        "value": "0x00000000"
      },
      {
        "idx": 10,
        "id": "speed_profiles3",
        "value": "0x00000000"
      },
      {
        "idx": 11,
        "id": "speed_profiles4",
        "value": "0x00000000"
      },
      {
        "idx": 12,
        "id": "speed_profiles5",
        "value": "0x00000000"
      },
      {
        "idx": 13,
        "id": "speed_profiles6",
        "value": "0x00000000"
      }
    ],
    [
      {
        "idx": 0,
        "id": "fault_config1",
        "value": "0x5FE80204"
      },
      {
        "idx": 1,
        "id": "fault_config2",
        "value": "0x74000088"
      }
    ],
    [
      {
        "idx": 0,
        "id": "pin_config",
        "value": "0x00000002"
      },
      {
        "idx": 1,
        "id": "device_config1",
        "value": "0x00100000"
      },
      {
        "idx": 2,
        "id": "device_config2",
        "value": "0x0000B000"
      },
      {
        "idx": 3,
        "id": "peri_config1",
        "value": "0x40000000"
      },
      {
        "idx": 4,
        "id": "gd_config1",
        "value": "0x00000100"
      },
      {
        "idx": 5,
        "id": "gd_config2",
        "value": "0x00200000"
      }
    ],
    [
      {
        "idx": 0,
        "id": "ana_trim3",
        "value": "0x48004800"
      },
      {
        "idx": 1,
        "id": "ana_trim4",
        "value": "0x00000000"
      },
      {
        "idx": 2,
        "id": "ana_trim5",
        "value": "0x8000002A"
      },
      {
        "idx": 3,
        "id": "ana_trim6",
        "value": "0x00000000"
      },
      {
        "idx": 4,
        "id": "ana_trim7",
        "value": "0x00000000"
      },
      {
        "idx": 5,
        "id": "ana_trim8",
        "value": "0x00001433"
      },
      {
        "idx": 6,
        "id": "ana_trim9",
        "value": "0x0049F7E1"
      },
      {
        "idx": 7,
        "id": "ana_trim10",
        "value": "0x5374113C"
      }
    ],
    [
      {
        "idx": 0,
        "id": "int_algo_1",
        "value": "0x00B9407D"
      },
      {
        "idx": 1,
        "id": "int_algo_2",
        "value": "0x000001A7"
      }
    ],
    [
      {
        "idx": 0,
        "id": "gate_driver_fault_status",
        "value": "0x00000000"
      },
      {
        "idx": 1,
        "id": "controller_fault_status",
        "value": "0x00000000"
      }
    ],
    [
      {
        "idx": 0,
        "id": "algo_status",
        "value": "0x00000000"
      },
      {
        "idx": 1,
        "id": "mtr_params",
        "value": "0x00000000"
      },
      {
        "idx": 2,
        "id": "algo_status_mpet",
        "value": "0x06000000"
      }
    ],
    [
      {
        "idx": 0,
        "id": "dev_ctrl",
        "value": "0x20000000"
      }
    ],
    [
      {
        "idx": 0,
        "id": "algo_ctrl1",
        "value": "0x9E8D0000"
      },
      {
        "idx": 1,
        "id": "algo_ctrl2",
        "value": "0x00000000"
      },
      {
        "idx": 2,
        "id": "current_pi",
        "value": "0x00053522"
      },
      {
        "idx": 3,
        "id": "speed_pi",
        "value": "0x00000000"
      },
      {
        "idx": 4,
        "id": "dac_1",
        "value": "0x00000000"
      },
      {
        "idx": 5,
        "id": "dac_2",
        "value": "0x00000000"
      }
    ],
    [
      {
        "idx": 0,
        "id": "algorithm_state",
        "value": "0x00000000"
      },
      {
        "idx": 1,
        "id": "fg_speed_fdbk",
        "value": "0x7FFFFFFF"
      },
      {
        "idx": 2,
        "id": "bus_current",
        "value": "0x00000000"
      },
      {
        "idx": 3,
        "id": "phase_current_a",
        "value": "0x00000000"
      },
      {
        "idx": 4,
        "id": "phase_current_b",
        "value": "0x00000000"
      },
      {
        "idx": 5,
        "id": "phase_current_c",
        "value": "0x00000000"
      },
      {
        "idx": 6,
        "id": "csa_gain_feedback",
        "value": "0x00010003"
      },
      {
        "idx": 7,
        "id": "voltage_gain_feedback",
        "value": "0x00000002"
      },
      {
        "idx": 8,
        "id": "vm_voltage",
        "value": "0x01A14000"
      },
      {
        "idx": 9,
        "id": "phase_voltage_va",
        "value": "0x00000000"
      },
      {
        "idx": 10,
        "id": "phase_voltage_vb",
        "value": "0x00000000"
      },
      {
        "idx": 11,
        "id": "phase_voltage_vc",
        "value": "0x00000000"
      },
      {
        "idx": 12,
        "id": "sin_commutation_angle",
        "value": "0x00000000"
      },
      {
        "idx": 13,
        "id": "cos_commutation_angle",
        "value": "0x00000000"
      },
      {
        "idx": 14,
        "id": "ialpha",
        "value": "0x00000000"
      },
      {
        "idx": 15,
        "id": "ibeta",
        "value": "0x00000000"
      },
      {
        "idx": 16,
        "id": "valpha",
        "value": "0x00000000"
      },
      {
        "idx": 17,
        "id": "vbeta",
        "value": "0x00000000"
      },
      {
        "idx": 18,
        "id": "id",
        "value": "0x00000000"
      },
      {
        "idx": 19,
        "id": "iq",
        "value": "0x00000000"
      },
      {
        "idx": 20,
        "id": "vd",
        "value": "0x00000000"
      },
      {
        "idx": 21,
        "id": "vq",
        "value": "0x00000000"
      },
      {
        "idx": 22,
        "id": "iq_ref_rotor_align",
        "value": "0x00000000"
      },
      {
        "idx": 23,
        "id": "speed_ref_open_loop",
        "value": "0x00000000"
      },
      {
        "idx": 24,
        "id": "iq_ref_open_loop",
        "value": "0x00000000"
      },
      {
        "idx": 25,
        "id": "speed_ref_closed_loop",
        "value": "0x00000000"
      },
      {
        "idx": 26,
        "id": "id_ref_closed_loop",
        "value": "0x00000000"
      },
      {
        "idx": 27,
        "id": "iq_ref_closed_loop",
        "value": "0x00000000"
      },
      {
        "idx": 28,
        "id": "isd_state",
        "value": "0x00000000"
      },
      {
        "idx": 29,
        "id": "isd_speed",
        "value": "0x00000000"
      },
      {
        "idx": 30,
        "id": "ipd_state",
        "value": "0x00000000"
      },
      {
        "idx": 31,
        "id": "ipd_angle",
        "value": "0x00000000"
      },
      {
        "idx": 32,
        "id": "ed",
        "value": "0x00000000"
      },
      {
        "idx": 33,
        "id": "eq",
        "value": "0x00000000"
      },
      {
        "idx": 34,
        "id": "speed_fdbk",
        "value": "0x00000000"
      },
      {
        "idx": 35,
        "id": "theta_est",
        "value": "0x00000000"
      }
    ]
  ]
}

  • 通常,当我们向电机添加负载时,速度会暂时下降,如果启用了加速回路,则速度应恢复并稳定到命令速度。当电机上的负载增加时,经常会看到相电流增加,但是当负载增加时看到电机速度增加是相当奇怪的。我检查了寄存器设置,看到速度环路已启用,这很好。我看到压摆率(在驱动器配置 - 栅极驱动器设置中)设置为25 V/us。是否可以将其设置为 200 V/us。这可能无法解决您的问题,但最好将压摆率设置为200 V /us。如果您没有看到速度稳定为命令速度,是否可以尝试增加总线电压VM并查看是否有帮助?