cascade control การใช้

He has devised local methods for cascade control in distributed systems.
Hertz, Barwich, and Yuri A . Krutkov worked on uranium diffusion cascade control theory.
In cascade control, one control loop applies control algorithms to a measured variable against a setpoint, but then provides a varying setpoint to another control loop rather than affecting process variables directly.
Initially three locomotives were coupled together and hauled trains at a constant speed of, but when larger trains required four locomotives the motors were concatenated ( cascade control ), so that the speed was halved to to avoid overloading the power supply.