摘要
介绍一种新型的高性能中压变频器,它能用于普通笼型电机的调速驱动。其输出电压的正弦波特性已经得到电机制造商的检验,与直接供电相比,没有附加的损耗。对于平方律负载如风机和水泵。
A medium voltage VSD is described, where existing standard motors can be connecled. The sinusoidal quality of its output voltage is proven by ae machine Manufacturer tests. No additional motor losses exist compared to operation direcl on line, for quadratic loads like pumps and fans, self-ventilated motors can be operated al variable speed without cooling problems.
出处
《电源技术应用》
2002年第11期49-52,共4页
Power Supply Technologles and Applications
关键词
高性能中压电机变频器
变速驱动
电压源变频器
中性点钳位
直接转矩控制
Variable speed dnve(VSD)
Voltage source inverter(VSI)
Neutral-point clamped(NPC)
Direct torgue control (DTC)
Direct on-line(DOL)
Total harmonic distorlion(THI))
Identification run(Ⅱ) - run)
Integrated gate commutated thyristor(IGCT)
Dr
