请问高压直流电压AKST7MC起动器套件有什么变化？

你好，
 
在使用Motor和AKST7MC套件进行首次测试后，我真的很满意它的工作原理。但电机是为大约400 Vdc的DC BUS电压而制造的，整流器和微控制器将在大约330 Vdc电压总线的240 Vac输入电压附近停用。任何人都可以帮助我，我必须决定是否更容易改进入门套件或更好地使用
不同的整流器，但哪一个？！这并不容易。
我试图改变直流链路上的电容器，但没有关于仅最大类型的信息。直流电压在某些情况下是电容。
谢谢你的回复 - 我希望如此
鸭舌



以下为原文




Hello,

after the first tests with the Motor and AKST7MC kit iwas really satisfied how well it works. But the motor is made for DC BUS Voltage around 400 Vdc and the rectifier and the microcontroller will be deactivated around 240 Vac input voltage that is around 330 Vdc Voltage Bus. Can anybody help me i have to decide is it better to improve the starter kit easily or better to use a  
different rectifier but which one?! It is not that easy.  
I tried to change the capacitors on the dc link, but there is no information about type only max. DC Voltage an in some case the capacitance.  
thank you for reply - i hope so  
Benn

谢谢Tanio的回复，
 
但现在我更喜欢使用其他功率级，而不是起动器套件的IGBT。并且会有下一个问题。我的新电源开关所需的PWM信号反转为入门套件的信号。我不知道这些端口的特殊功能寄存器需要哪些更改。我发现我必须改变MPOL寄存器的设置，但我不确定。它们指的是MPHST寄存器和OP [5：0]位，所以我有点不确定。
简单的方法是使用单独的逆变器电路，但我的电路板上没有空间。
我也不知道如何更改这些寄存器。复位MPOL寄存器值为0011 1111，但当我尝试从复位MCU读取它们时，值为1111 1111。
是否真的需要逐位设置值。我对港口选择了解不多。
当他们谈论使用Mosfet而不是IGBT使用的DTE位时，st7用户手册中的补充pwm是什么意思。
我知道这是一个巨大的文字，但我希望任何人都可以帮助我。
最好的祝福。
你真诚的贝恩



以下为原文




Thank you Tanio for your reply,

but now i prefer to use an other power stage, instead of the IGBT's of the starter Kit. And there will be the next problem. The PWM signals i need for my new Power switches are inverted to the signals from the starter kit. And i don't know which changes are necessary for the special function register for these ports. I found that i have to change the settings of the MPOL register but i'm not sure. they refer to MPHST register and to the OP[5:0] bits, so i'm a bit unsure.  
The simple way is to use seperate inverter circuits, but there is no space on my board.  
I also don't knew how to change these register. The reset MPOL register value is 0011 1111 but when i tried to read them from the reseted MCU the value is 1111 1111.  
Is it realy necessary to set the value bit by bit. I don't know much about port option.  
And what does the complementary pwm mean in the st7 user's manual when they talk about the DTE bit whith Mosfet instead of IGBT's used.  
I know it is a huge text but i hope anybody could help me.  
Best regards.  
yours sincerely Benn

你好Benn，
 
 
为了您的理解，让我解释一下您所指的两个寄存器的含义：
- MPHST是确定哪些MTC输出通道当前有效的寄存器;
- MPOL寄存器estbilishes，它是活动通道的极性。
有关更多详细信息，请参见第217页的表76。
在下一版本的控制面板（GUI 2.0）中，还可以管理外部电源板，同时注意极性方面。
 
关于第二个问题，如ST7用户手册中所述，此处的目的是通过MOSFET再循环电流而不是内部二极管。要做到这一点，必须将MOS（将在反向模式下工作）接通，而同一支路的另一个MOS有效（PWM生成）。为了避免交叉传导，必须通过验证DTE位来插入一些死区时间。这就是所谓的“同步整流”。
 
最好的祝福，
Tanio



以下为原文




Hello Benn,


just for your understanding, let me explain the meaning of the two registers you are referring to:  
- MPHST is the register that establishes which MTC output channels are currently active;  
- MPOL register estbilishes which is the polarity of the active channel.  
Please, refer to Table 76 on page 217 for more details.  
In the next version of Control Panel (the GUI 2.0) it will be possible to manage also an external power board, taking care also of the polarity aspects.  

Regarding your second question, as explained in the ST7 user's manual, here the purpose is to recirculate the current throught the MOSFET rather than its internal diode. To do that, it is necessary turn ON the MOS (that will work in reverse mode) while the other MOS of the same leg is active (PWM generating). To avoid cross conduction some dead-time has to be inserted by validating the DTE bit. That's called ''Synchronous rectification''.  

Best regards,  
Tanio