| Abstract |
Converters for industrial variable-speed drives are usually equipped with type-specific control schemes. The control schemes of four different converter systems are analyzed in their basic design. Monitoring and operator control are not considered. It is found that these schemes consist of both common usable basic control elements and type-specific basic control elements. For demonstration, a hypothetic common control scheme for the four drive systems analyzed is set up, comprising these basic control elements. It can be seen that, when applying the common usable basic control elements, a simplified overall design and realization of the control equipment for the four converter systems under consideration is possible. For that purpose, the common basic control elements have to be realized in the same hardware and with the same software. Differences between the systems, i.e. the system specific control elements, should only be made where it is necessary. |
