Development of a PLC modem for data transmission over a PWM power supply

作者：Batard Christophe^*; Ginot Nicolas; Mannah Marc Anthony; Millet Christophe; Poitiers Frederic

来源：International Journal of Electronics, 2014, 101(4): 516-530.

DOI：10.1080/00207217.2013.792121

• power converter
• Butterworth filter
• PWM motor drive
• power line communication (PLC)
• reflexion coefficient
• QPSK modulation

In variable-speed electrical drive and online conditioning monitoring, a feedback loop is required in order to transmit the sensor information from the motor to the controller close to the inverter. Additional cabling is used for signalling. This extra cabling has a significant cost and data transmission may not be reliable. Thus, the use of power line communication (PLC) technology to transmit data in motor drive application is quite interesting. The use of a PLC modem dedicated to the home network in a three-phase inverter-fed motor power cable does not work. Therefore, specific coupling interfaces are developed to transmit data through a pulse-width modulated power supply. Laboratory tests have shown that the couplers are operating properly. They ensure reliable data transmission in a motor drive application.

• 出版日期2014-4-3