The paper has analysed the structure principle of this kind of device, and analysed soft start, soft brake, variable speed regulation and multi-drive power balance.
Our design emphasizes on using parallel processing technology from multi-level to improve speed, including pipelining design, data-flow drive strategy and algorithmic parallelism design.
The article introduces the raising process, composition of raising machine and its the variable speed dive control system. Multi-motor drive of raising machine's feature is highlighted.