MotorControlFunction.c 17 KB

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  1. #include <MyProject.h>
  2. CurrentOffset xdata mcCurOffset; ///< 电流采样偏置电压采集缓存
  3. /**
  4. @brief 对FOC的相关寄存器进行配置,先清理寄存器,后配置,最后使能
  5. @exception 初始化FOC,需要先关闭DRVIVER,对FOC寄存器配置完成后,使能FOC再打开DRVIVER,否则可能导致第一拍电流采样错误
  6. @date 2022-07-14
  7. */
  8. void FOC_Init(void)
  9. {
  10. DRV_CMR = 0x0ABF; // UH/VH/WH UL/VL/WL 互补并使能
  11. /* 使能FOC */
  12. ClrBit(DRV_CR, DRVEN); // 关闭DRVIVER 计时器,防止第一拍采样出错
  13. ClrBit(DRV_CR, FOCEN);
  14. SetBit(DRV_CR, FOCEN);
  15. ClrBit(FOC_CR0, MERRS1);
  16. SetBit(FOC_CR0, MERRS0);
  17. FOC_EOMEKLPF = _Q8(1.0); // FOC内部 速度滤波系数
  18. /* 配置FOC寄存器 */
  19. FOC_CR1 = 0; // 清零 FOC_CR1
  20. FOC_CR2 = 0; // 清零 FOC_CR2
  21. FOC_IDREF = 0; // 清零 Id
  22. FOC_IQREF = 0; // 清零 Iq
  23. FOC__THETA = 0; // 清零 角度
  24. FOC_RTHEACC = 0; // 清零 爬坡函数的初始加速度
  25. FOC__RTHESTEP = 0; // 清零 爬坡速度
  26. FOC_RTHECNT = 0; // 清零 爬坡次数
  27. FOC_THECOMP = _Q15(0.0 / 180.0); // SMO 估算补偿角
  28. FOC_THECOR = 0x04; // 误差角度补偿
  29. /* 电流环参数配置 */
  30. FOC_DMAX = DOUTMAX;
  31. FOC_DMIN = DOUTMIN;
  32. FOC_QMAX = QOUTMAX;
  33. FOC_QMIN = QOUTMIN;
  34. /* 位置估算参数配置 */
  35. FOC_EK1 = OBS_K1T;
  36. FOC_EK2 = OBS_K2T;
  37. FOC_EK3 = OBS_K3T;
  38. FOC_EK4 = OBS_K4T;
  39. /* -----AO/PLL/SMO ----- */
  40. #if (EstimateAlgorithm == AO)
  41. {
  42. ClrBit(FOC_CR2, ESEL);
  43. FOC_KSLIDE = OBS_KSLIDE;
  44. FOC_EKLPFMIN = OBS_EA_KS;
  45. SetBit(FOC_CR0, ESCMS);
  46. SetBit(FOC_CR3, MFP_EN);
  47. }
  48. #elif (EstimateAlgorithm == SMO)
  49. {
  50. ClrBit(FOC_CR2, ESEL);
  51. FOC_KSLIDE = OBS_KSLIDE;
  52. FOC_EKLPFMIN = OBS_EA_KS;
  53. }
  54. #elif (EstimateAlgorithm == PLL)
  55. {
  56. SetBit(FOC_CR2, ESEL);
  57. FOC_KSLIDE = OBSE_PLLKP_GAIN;
  58. FOC_EKLPFMIN = OBSE_PLLKI_GAIN;
  59. }
  60. #endif
  61. FOC_FBASE = OBS_FBASE; // 由速度计算角度增量的系数
  62. FOC_OMEKLPF = SPEED_KLPF; // 估算器内速度低通滤波系数
  63. FOC_TGLI = PWM_TGLI_LOAD; // 死区配置
  64. SetBit(FOC_CR1, SVPWMEN); // SVPWM模式
  65. #if (IR_MODE == CCW)
  66. SetBit(DRV_CR, DDIR);
  67. #endif
  68. #if (OverModulation)
  69. SetBit(FOC_CR1, OVMDL);
  70. #endif
  71. /* 单电阻采样; 需要最小采样窗,FOC_TRGDLY为0,七段式SVPWM方式 */
  72. #if (Shunt_Resistor_Mode == Single_Resistor)
  73. {
  74. SetReg(FOC_CR1, CSM0 | CSM1, 0x00);
  75. FOC_TSMIN = PWM_TS_LOAD; // 最小采样窗口
  76. FOC_TRGDLY = 0x0c; // 采样时刻在中点,一般考虑开关噪声影响,会设置延迟;
  77. // 如:0x0c表示延迟12个clock,提前用反码形式,如0x84表示提前12个clock。
  78. ClrBit(FOC_CR2, F5SEG); // 7段式,单电阻仅支持7段式
  79. }
  80. /* 双电阻采样,可设置死区补偿值,在下降沿结束前开始采样Ia Ib */
  81. #elif (Shunt_Resistor_Mode == Double_Resistor) // double resistor sample
  82. {
  83. SetReg(FOC_CR1, CSM0 | CSM1, CSM0);
  84. FOC_TSMIN = PWM_DT_LOAD; // 死区补偿值
  85. FOC_TRGDLY = 0x07; // ADC采样的时刻,采样时刻在计数器零点附近与单电阻不同
  86. // 如:0x83为下降沿结束前3个clock采样Ia 0x01为上升沿开始后第一个clock开始采样。根据实际情况调整。
  87. FOC_TBLO = PWM_DLOWL_TIME; // 下桥臂最小脉冲,保证采样
  88. /*五段式或七段式选择*/
  89. #if (SVPMW_Mode == SVPWM_7_Segment)
  90. {
  91. ClrBit(FOC_CR2, F5SEG); // 7段式
  92. }
  93. #elif (SVPMW_Mode == SVPWM_5_Segment)
  94. {
  95. SetBit(FOC_CR2, F5SEG); // 5段式
  96. }
  97. #endif
  98. #if (DouRes_Sample_Mode == DouRes_1_Cycle)
  99. {
  100. ClrBit(FOC_CR2, DSS); // 7段式
  101. }
  102. #elif (DouRes_Sample_Mode == DouRes_2_Cycle)
  103. {
  104. SetBit(FOC_CR2, DSS); // 5段式
  105. }
  106. #endif //end DouRes_Sample_Mode
  107. }
  108. /*三电阻采样*/
  109. #elif (Shunt_Resistor_Mode == Three_Resistor) // signel resistor sample
  110. {
  111. SetReg(FOC_CR1, CSM0 | CSM1, CSM0 | CSM1); // 三电阻
  112. FOC_TSMIN = PWM_DT_LOAD; // 死区补偿值
  113. FOC_TRGDLY = 0x06; // ADC采样的时刻,采样时刻在计数器零点附近与单电阻不同。
  114. // 如:0x83为下降沿结束前3个clock采样Ia,0x01为上升沿开始后第一个clock开始采样。根据实际情况调整。
  115. FOC_TBLO = PWM_OVERMODULE_TIME; // 过调制电流采样处理的TB脉宽
  116. /* 五段式或七段式选择 */
  117. #if (SVPMW_Mode == SVPWM_7_Segment)
  118. {
  119. ClrBit(FOC_CR2, F5SEG); // 7段式
  120. }
  121. #elif (SVPMW_Mode == SVPWM_5_Segment)
  122. {
  123. SetBit(FOC_CR2, F5SEG); // 5段式
  124. }
  125. #endif // end SVPMW_Mode
  126. #if (DouRes_Sample_Mode == DouRes_1_Cycle)
  127. {
  128. ClrBit(FOC_CR2, DSS); // 7段式
  129. }
  130. #elif (DouRes_Sample_Mode == DouRes_2_Cycle)
  131. {
  132. SetBit(FOC_CR2, DSS); // 5段式
  133. }
  134. #endif // end DouRes_Sample_Mode
  135. }
  136. #endif
  137. #if (Shunt_Resistor_Mode == Single_Resistor) // 单电阻校正
  138. {
  139. /*set ibus current sample offset*/
  140. SetReg(FOC_CR2, CSOC0 | CSOC1, 0x00);
  141. FOC_CSO = mcCurOffset.Iw_busOffset; // 写入Ibus的偏置
  142. }
  143. #elif (Shunt_Resistor_Mode == Double_Resistor) // 双电阻校正
  144. {
  145. /*set ia, ib current sample offset*/
  146. SetReg(FOC_CR2, CSOC0 | CSOC1, CSOC0);
  147. FOC_CSO = mcCurOffset.IuOffset; // 写入IA的偏置
  148. SetReg(FOC_CR2, CSOC0 | CSOC1, CSOC1);
  149. FOC_CSO = mcCurOffset.IvOffset; // 写入IB的偏置
  150. }
  151. #elif (Shunt_Resistor_Mode == Three_Resistor) // 三电阻校正
  152. {
  153. /*set ibus current sample offset*/
  154. SetReg(FOC_CR2, CSOC0 | CSOC1, CSOC0);
  155. FOC_CSO = mcCurOffset.IuOffset; // 写入IA的偏置
  156. SetReg(FOC_CR2, CSOC0 | CSOC1, CSOC1);
  157. FOC_CSO = mcCurOffset.IvOffset; // 写入IB的偏置
  158. SetReg(FOC_CR2, CSOC0 | CSOC1, 0x00);
  159. FOC_CSO = mcCurOffset.Iw_busOffset; // 写入IC的偏置
  160. }
  161. #endif
  162. /* -------------------------------------------------------------------------------------------------
  163. DRV_CTL:PWM来源选择
  164. OCS = 0, DRV_COMR
  165. OCS = 1, FOC/SVPWM/SPWM
  166. -------------------------------------------------------------------------------------------------*/
  167. /*计数器比较值来源FOC*/
  168. SetBit(DRV_CR, DRVEN); // 计数器使能 0-->Disable 1-->Enable
  169. SetBit(DRV_CR, OCS);
  170. }
  171. /**
  172. @brief 预充电分三步,第一步是对U相进行预充电,第二步是对V两相进行预充电;第三步是对W三相进行预充电。
  173. @brief 低压应用一般不需要预充电,在customer.h禁止预充电功能寄即可
  174. @exception 在低功率高压应用中,过流值较小,充电电流过大可能导致触发硬件过流, 需要注意检查
  175. @date 2022-07-14
  176. */
  177. void Motor_Charge(void)
  178. {
  179. if (McStaSet.SetFlag.ChargeSetFlag == 0)
  180. {
  181. McStaSet.SetFlag.ChargeSetFlag = 1;
  182. SetBit(DRV_CR, DRVEN); // 计数器使能 0-->Disable 1-->Enable
  183. DRV_DR = CHARGE_DUTY * DRV_ARR; //下桥臂10% duty
  184. DRV_CMR &= 0xffc0;
  185. /* -------------------------------------------------------------------------------------------------
  186. DRV_CTL:PWM来源选择
  187. OCS = 0, DRV_COMR
  188. OCS = 1, FOC/SVPWM/SPWM
  189. -------------------------------------------------------------------------------------------------*/
  190. ClrBit(DRV_CR, OCS);
  191. mcFocCtrl.ChargeStep = 0;
  192. }
  193. if ((mcFocCtrl.State_Count < CHARGE_TIME) && (mcFocCtrl.ChargeStep == 0))
  194. {
  195. mcFocCtrl.ChargeStep = 1;
  196. DRV_CMR |= 0x01; // U相下桥臂通
  197. MOE = 1;
  198. }
  199. if (( mcFocCtrl.State_Count <= (CHARGE_TIME << 1) / 3) && (mcFocCtrl.ChargeStep == 1))
  200. {
  201. mcFocCtrl.ChargeStep = 2;
  202. DRV_CMR |= 0x04; // V相下桥臂通
  203. }
  204. if ((mcFocCtrl.State_Count <= CHARGE_TIME / 3) && (mcFocCtrl.ChargeStep == 2))
  205. {
  206. mcFocCtrl.ChargeStep = 3;
  207. DRV_CMR |= 0x10; // W相下桥臂通
  208. }
  209. }
  210. /**
  211. @brief 开启次功能启动时候会将电机强拉到 设定角度,之后再启动
  212. @date 2022-07-14
  213. */
  214. void Motor_Align(void)
  215. {
  216. if (McStaSet.SetFlag.AlignSetFlag == 0)
  217. {
  218. McStaSet.SetFlag.AlignSetFlag = 1;
  219. /* -----FOC初始化----- */
  220. FOC_Init();
  221. /* 配置预定位的电流、KP、KI */
  222. FOC_IDREF = ID_Align_CURRENT;
  223. FOC_IQREF = IQ_Align_CURRENT;
  224. FOC_DKP = DQKP_Alignment;
  225. FOC_DKI = DQKI_Alignment;
  226. FOC_QKP = DQKP_Alignment;
  227. FOC_QKI = DQKI_Alignment;
  228. FOC_EKP = OBSW_KP_GAIN_START;
  229. FOC_EKI = OBSW_KI_GAIN_START;
  230. SetBit(FOC_CR2, UDD);
  231. // 配置预定位角度
  232. FOC__THETA = Align_Angle1;
  233. #if (EstimateAlgorithm == SMO )
  234. FOC__ETHETA = FOC__THETA - 4096;
  235. #else
  236. FOC__ETHETA = FOC__THETA;
  237. #endif
  238. // DRV_CMR |= 0x3F; // U、V、W相输出
  239. MOE = 1;
  240. }
  241. }
  242. /**
  243. @brief 静止启动配置函数
  244. @date 2022-07-14
  245. */
  246. void Motor_Static_Open(void)
  247. {
  248. FOC_Init();
  249. MOE = 1;
  250. FOC__THETA = mcFocCtrl.AngleStart;
  251. FOC_IDREF = ID_Start_CURRENT; // D轴启动电流
  252. FOC_DKP = DKPStart;
  253. FOC_DKI = DKIStart;
  254. FOC_QKP = QKPStart;
  255. FOC_QKI = QKIStart;
  256. FOC_EKP = OBSW_KP_GAIN_START;
  257. FOC_EKI = OBSW_KI_GAIN_START;
  258. /*启动方式选择*/
  259. #if (Open_Start_Mode == Omega_Start) // Omega 启动
  260. {
  261. FOC_EFREQACC = MOTOR_OMEGA_RAMP_ACC;
  262. FOC_EFREQMIN = MOTOR_OMEGA_RAMP_MIN;
  263. FOC_EFREQHOLD = MOTOR_OMEGA_RAMP_END;
  264. SetReg(FOC_CR1, EFAE | RFAE | ANGM, EFAE | ANGM);
  265. }
  266. #elif (Open_Start_Mode == Open_Start)
  267. {
  268. FOC_RTHEACC = MOTOR_OPEN_RAMP_ACC; // 爬坡函数的初始加速度
  269. FOC__RTHESTEP = MOTOR_OPEN_RAMP_MIN; // 0.62 degree acce speed
  270. FOC_RTHECNT = MOTOR_OPEN_RAMP_CNT; // acce time
  271. SetReg(FOC_CR1, EFAE | RFAE | ANGM, RFAE);
  272. }
  273. #elif (Open_Start_Mode == Open_Omega_Start)
  274. {
  275. FOC_RTHEACC = MOTOR_OPEN_RAMP_ACC; // 爬坡函数的初始加速度
  276. FOC__RTHESTEP = MOTOR_OPEN_RAMP_MIN; // 0.62 degree acce speed
  277. FOC_RTHECNT = MOTOR_OPEN_RAMP_CNT; // acce time
  278. FOC_EFREQACC = Motor_OMEGA_RAMP_ACC;
  279. FOC_EFREQMIN = MOTOR_OMEGA_RAMP_MIN;
  280. FOC_EFREQHOLD = MOTOR_OMEGA_RAMP_END;
  281. SetReg(FOC_CR1, EFAE | RFAE | ANGM, EFAE | RFAE | ANGM);
  282. }
  283. #endif //end Open_Start_Mode
  284. /*不同启动方式下,切换到MCRUN状态*/
  285. #if (Open_Start_Mode == Open_Start) //OPEN状态启动时拖动多次
  286. {
  287. mcFocCtrl.State_Count = 0;
  288. FOC_EKP = OBSW_KP_GAIN_RUN4; // 估算器里的PI的KP
  289. FOC_EKI = OBSW_KI_GAIN_RUN4; // 估算器里的PI的KI
  290. }
  291. #elif (Open_Start_Mode == Omega_Start)
  292. {
  293. /*********PLL或SMO**********/
  294. #if (EstimateAlgorithm == SMO || EstimateAlgorithm == AO)
  295. {
  296. mcFocCtrl.State_Count = ATO_START_HOLDTIME + (ATO_RAMP_PERIOD << 2); //ATO 爬坡控制时间
  297. }
  298. #elif (EstimateAlgorithm == PLL)
  299. {
  300. mcFocCtrl.State_Count = 0;
  301. FOC_EKP = OBSW_KP_GAIN_RUN4; // 估算器里的PI的KP
  302. FOC_EKI = OBSW_KI_GAIN_RUN4; // 估算器里的PI的KI
  303. }
  304. #endif
  305. }
  306. #endif
  307. FOC_IQREF = IQ_Start_CURRENT; // Q轴启动电流
  308. }
  309. /**
  310. @brief 三下桥刹车
  311. @date 2022-07-14
  312. */
  313. void MC_Break(void)
  314. {
  315. MOE = 1;
  316. ClrBit(DRV_CR, FOCEN); // 关闭FOC
  317. /* 软件设置PWM占空比输出以上桥为参考,配置为互补输出时下桥反向 */
  318. ClrBit(DRV_CR, OCS); // OCS = 0, DRV_COMR; OCS = 1, FOC/SVPWM/SPWM
  319. SetBit(DRV_CR, DRVEN); // 计数器使能 0-->Disable 1-->Enable
  320. DRV_CMR = 0x0015; // 关闭上桥输出,开启下桥输出
  321. DRV_DR = (DRV_ARR) + 4 ; // ARR+4为全开
  322. }
  323. /**
  324. @brief 上电时,先对硬件电路的电流进行采集,写入对应的校准寄存器中。
  325. 调试时,需观察mcCurOffset结构体中对应变量是否在范围内。采集结束后,OffsetFlag置1。
  326. @exception 默认循环1000次等待偏置电压稳定,需要注意若需要每次电机启动前都对偏置电压进行采样校准,
  327. 那么需要保证偏置电压是稳定的,且采样计数变量已被清零(重新进行1000次循环),否则可能导致采样出错
  328. @date 2022-07-14
  329. */
  330. void GetCurrentOffset(void)
  331. {
  332. SetBit(ADC_CR, ADCBSY); // 使能ADC
  333. while (ReadBit(ADC_CR, ADCBSY));
  334. #if (Shunt_Resistor_Mode == Single_Resistor) //单电阻模式
  335. {
  336. mcCurOffset.Iw_busOffsetSum += ((ADC4_DR & 0x7ff8));
  337. mcCurOffset.Iw_busOffset = mcCurOffset.Iw_busOffsetSum >> 4;
  338. mcCurOffset.Iw_busOffsetSum -= mcCurOffset.Iw_busOffset;
  339. mcCurOffset.IbusOffsetSum += ((ADC7_DR & 0x7ff8));
  340. mcCurOffset.IbusOffset = mcCurOffset.IbusOffsetSum >> 4;
  341. mcCurOffset.IbusOffsetSum -= mcCurOffset.IbusOffset;
  342. }
  343. #elif (Shunt_Resistor_Mode == Double_Resistor) //双电阻模式
  344. {
  345. mcCurOffset.IuOffsetSum += ((ADC0_DR & 0x7ff8));
  346. mcCurOffset.IuOffset = mcCurOffset.IuOffsetSum >> 4;
  347. mcCurOffset.IuOffsetSum -= mcCurOffset.IuOffset;
  348. mcCurOffset.IvOffsetSum += ((ADC1_DR & 0x7ff8));
  349. mcCurOffset.IvOffset = mcCurOffset.IvOffsetSum >> 4;
  350. mcCurOffset.IvOffsetSum -= mcCurOffset.IvOffset;
  351. }
  352. #elif (Shunt_Resistor_Mode == Three_Resistor) //三电阻模式
  353. {
  354. mcCurOffset.IuOffsetSum += ((ADC0_DR & 0x7ff8));
  355. mcCurOffset.IuOffset = mcCurOffset.IuOffsetSum >> 4;
  356. mcCurOffset.IuOffsetSum -= mcCurOffset.IuOffset;
  357. mcCurOffset.IvOffsetSum += ((ADC1_DR & 0x7ff8));
  358. mcCurOffset.IvOffset = mcCurOffset.IvOffsetSum >> 4;
  359. mcCurOffset.IvOffsetSum -= mcCurOffset.IvOffset;
  360. mcCurOffset.Iw_busOffsetSum += ((ADC4_DR & 0x7ff8));
  361. mcCurOffset.Iw_busOffset = mcCurOffset.Iw_busOffsetSum >> 4;
  362. mcCurOffset.Iw_busOffsetSum -= mcCurOffset.Iw_busOffset;
  363. }
  364. #endif
  365. mcCurOffset.OffsetCount++;
  366. if (mcCurOffset.OffsetCount > 1000)
  367. {
  368. mcCurOffset.OffsetFlag = 1;
  369. }
  370. }
  371. /**
  372. @brief 关闭输出,关闭FOC,电机切换到mcReady状态被调用一次
  373. @date 2022-07-14
  374. */
  375. void Motor_Ready(void)
  376. {
  377. }