本发明涉及一种用于运行整流器(8)、尤其是电机(2)的整流器(8)的方法,其中对于所述整流器(8)的半导体开关(22)或每个半导体开关(22)来说,产生用于调整切断速度(Aneu)的控制信号(P’),其中检测中间电路(10)的中间电路电压(Udc)并且将其与电流阈值(Uthresh)进行比较;其中检测相应的半导体开关(22)的运行参数(TB)并且将其与温度阈值(Tthresh)进行比较;其中检测借助于相应的半导体开关(22)来切换的负载电流(Ic)并且将其与电流阈值(Ithresh)进行比较;而且其中根据所述比较来产生所述用于调整关断速度(Aneu)的控制信号(P’)。
The invention relates to a method for operating a current converter, in particular of an electric machine, in which, for the or for each semiconductor switch of the current converter, a control signal (P′) for setting a switch-off speed (Anew) is generated, wherein an electric intermediate circuit voltage (Udc) of an intermediate circuit is measured and compared to a voltage threshold value (Uthresh), wherein an operating temperature (TB) of the respective semiconductor switch is measured and compared to a temperature threshold value (Tthresh), wherein a load current (Ic) switched by means of the respective semiconductor switch is measured and compared to a current threshold value (Ithresh), and wherein the control signal (P′) for setting the switch-off speed (Anew) is generated on the basis of the comparisons.
用于运行整流器的方法以及根据该方法工作的整流器
2023-03-03
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H03K PULSE TECHNIQUE , Impulstechnik |