参数资料
| 型号： | ATAVRMC300 |
| 厂商： | Atmel |
| 文件页数： | 13/16页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL LV MOTOR CONTROL PWR |
| 产品培训模块： | MCU Product Line Introduction megaAVR Introduction |
| 标准包装： | 1 |
| 系列： | AVR® |
| 主要目的： | 电源管理，电机控制 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | ATmega32M1 |
| 主要属性： | 3 相 BLDC，带电刷 DC，步进电机驱动器板，40V，6A |
| 次要属性： | 需要 ATAVRMC301、ATAVRMC303 或 ATAVRMC310 |
| 已供物品： | 板，电机，软件 |
AVR194
Figure 11. Ki tuning example
250
200
150
100
Ki=1 ; Kp=1
Ki=2 ; Kp=1
Ki=0,5 ; Kp=1
Speed Speed
R eference Consign
50
0
Time (s)
In Figure 10 and Figure 11 , the right parameters are KP = 1, KI = 0.5 and KD = 0.
To adjust the KD parameter:
?
?
If the reponse is still slow, increase KD gain.
If the reponse is still unstable, decrease KD gain.
Another significant point is the sampling time. It has to be chosen according to the response time
of the system. The sampling time must be at least twice as small as the response time of the
system (according to the Shannon-Nyquist criteria).
Two functions are available for the sampling time configuration (explained previously). They
result in a global variable called g_tick which is set every 250us. With this variable it is possible
to configure the sampling time.
5.3
CPU & Memory Usage
All measurements have been realized with Fosc = 16MHz. They also depend on the motor type
(numbers of pair of poles). With a motor of 4 pairs of poles, hall sensor frequency is four times
faster than the motor rotation.
All results in Figure 5-1 are obtained with a three phases BLDC motor with four pairs of poles
and a maximum speed of 6900 rpm. (Motor provided with the ATAVRMC300 kit)
Table 5-1.
Microcontroller utilization rate
Function Param eters
m c_es tim ation_s peed() Speed = 6900 rpm
m c_s witch_com m utation() Speed = 6900 rpm
activation tim e
15 us
8 us
activation period
2 ms
300 us
Ratio uc %
0.75
2.7
m c_regulation_loop()
Open Loop
Clos e Loop
1.4 us
20 us
80 m s
80 m s
0.0175
0.025
In the worst case, the microcontroller utilization ratio is about 3.5% with a sampling time of 80ms
at 6900 rpm.
13
8138A–AVR–04/08
相关PDF资料 |
PDF描述 |
|---|---|
| ATAVRMC303 | BOARD EVAL MOTOR CTRL W/XMEGA |
| ATAVRMC320 | KIT EVAL MOTOR CTRL CAN/LIN |
| ATAVRSB100 | SMART BATTERY DEVELOPMENT KIT |
| ATAVRSB200 | KIT EVAL FOR AVR SMART BATTERY |
| ATAVRSB201 | KIT REF FOR AVR SMART BATTERY |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ATAVRMC301 | 功能描述:开发板和工具包 - AVR Processor Brd w/ TINYx61 RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V |
| ATAVRMC303 | 功能描述:BOARD EVAL MOTOR CTRL W/XMEGA RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:AVR® 标准包装:1 系列:- 主要目的:数字电位器 嵌入式:- 已用 IC / 零件:AD5258 主要属性:- 次要属性:- 已供物品:板 相关产品:AD5258BRMZ1-ND - IC POT DGTL I2C1K 64P 10MSOPAD5258BRMZ10-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ100-ND - IC POT DGTL I2C 100K 64P 10MSOPAD5258BRMZ50-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ1-R7-ND - IC POT DGTL I2C 1K 64P 10MSOPAD5258BRMZ10-R7-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ50-R7-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ100-R7-ND - IC POT DGTL I2C 100K 64P 10MSOP |
| ATAVRMC310 | 功能描述:开发板和工具包 - AVR Processor Brd w/ MEGA32M1 RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V |
| ATAVRMC320 | 功能描述:开发板和工具包 - AVR Motor Contrl. Kit for CAN and LIN app. RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V |
| ATAVRMC321 | 功能描述:开发板和工具包 - AVR Motor Contrl. Kit for low cost app. RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V |
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