摘要
自动控制系统中，常见方案有简单、串级、均匀、比值、前馈—反馈、分程、选择和多冲量控制系统，且简单控制系统约占80％，这里介绍的控制系统方案，集中了多种复杂控制功能及联锁保护功能．
In automatic control system,there are many common control schemes about simple、con-tact、even、ratio、feedforward-feedback、didide and multi-variables control system. Amongthem 80% is the simple control system. The control system introduced has many comlexcontrol and interlockprotect functions.
