MODULAR INVERTER DRIVE

摘要

A modular inverter drive is described having a control interface card for driving a plurality of inverters. The control interface card provides an interface between a control card and each of a plurality of inverters. A dedicated digital connection (e.g. using an optical fibre) is provided between the interface card and each inverter. Digital data sent between the interface card and the inverters may be encoded to enable error detection and/or correction. Inverter data (such as current data) may be summed at the control interface card before being sent to the control card.