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The control objective of a water boosting system equipped with multiple variable-speed pumps in parallel is to minimize the pump system energy consumption by control the number of running pumps and their corresponding speeds in a real-time manner, subject to potential changes of (system head) set-points and operating conditions. After a number of static models for different pump combinations are derived,...
An optimal scheduling and control method for a multiple pump system is proposed from the energy efficient point of view. The model-based optimal problem is first formulated and then converted to be a mixed integer nonlinear programming problem. The proposed method provides an optimal solution regarding to how many and which available pumps should be put into operation when the (head) demand to the...
This paper discusses the development and control of an inverted pendulum system using the reaction wheel mechanism. A laboratory-sized system is developed and services as a physical platform for control test purpose. A hybrid switching controller is designed to swing-up and then stabilize the pendulum at its upright position. Based on the energy analysis, the swing-up controller is developed as a...
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