1.Warranty time: 1 year
2.Delivery time: 3-5 days
3.Product quality: new or discontinued second-hand
1. We are a global trading company, we have a large stock of spare parts, we also produce energy storage batteries
2. Our main sales products are industrial automation control equipment accessories, such as: controller board, processor module, communication module, input and output module, power module (various circuit boards and cards), touch screen, servo driver, servo motor, sensor, cable......
3. We can not only provide new products, but also supply cold and discontinued spare parts, all the discontinued parts will go through strict testing to ensure the reliability of product performance, so that customers can buy and use at ease
4. For more information, please contact us: Contact: Amy | Email: saul01@qq.com | Tel(WhatsApp/Wechat): +86-15359298283
ABB 57160001-ACX DSDP140B
The motor driven by the inverter should be prevented from entering the power generation state to give back energy to the inverter. When the inverter is running, the three-phase AC power supply is rectified through the rectifier diode bridge in the power unit, and the capacitor array filters the pulsating DC into a constant DC. The capacitor array also acts as an energy relay pool for PWM output, providing a stable voltage to the output loop. For the H-bridge inverter with 6 power units in each phase, its PWM output control signal is generated by comparing the common sine wave and 6 triangular carriers, which stagger each other according to 1/6 of their own period, so that the output voltage after the 6 units are superimposed in series with each other is 13 step waves, as shown in Figure 3. Where UA1... UA6 is the output voltage of the six power units in phase A respectively. After superimposed, UA0 is the output voltage of phase A of the inverter. FIG. 3 shows the A-phase reference voltage UAr used to generate PWM control signals, and it can be seen that UA0 approximates UAr well. UAF is the fundamental component of the A-phase output voltage. For 6kV frequency converter, the input voltage of the power unit is three-phase 600V. When the output frequency of the frequency converter is 50Hz, the output of the power unit is single-phase 577V. After the units are superimposed in series with each other, the output phase voltage can be 3464V
