The Story Of An Idea That Refuses To Die: From Jean‐Victor Poncelet to Active Disturbance Rejection Control

Presentation Summary:

Dr. Gao, the Director of the Center for Advanced Control Technologies at Cleveland State University, will present a short history of this new technology, i.e. Active Disturbance Rejection Control (ADRC). ADRC is more powerful than PID and easier to use. ADRC can be setup to address a wide range of applications, from temperature, flow and motion control, to human health monitoring and even stabilization of weapons platforms. Once setup, no tuning is needed for startup or changes in the process nor is ADRC dependent on a mathematical model of the plant or proces. Dr. Gao’s presentation will address the problems associated with conventional control, the structure of the active disturbance rejection controller and will compare the responses of ADRC and PID control. He will also address how at the CACT they have employed this technology with companies like Rockwell to solve various controlproblems.


Dr. Zhiqiang Gao, Associate Professor of Electrical and Computer Engineering and Director of Center for Advanced Control Technologies at Clevelad State University, received his Ph.D. in Electrical Engineering from the University of Notre Dame in 1990. Since then, he and his research group at CSU have collaborated extensively with industry and conducted multi‐million dollar research and development projects. Dr. Gao and this team of researchers actively explore effective control mechanisms in solving real world problems. This research philosophy has lead to the discovery of a new paradigm, active disturbance rejection control, and a set of innovative solutions, such as wavelet based multi‐resolution controller, nonlinear PID, fuzzy logic, self‐tuning, CAD software package, real time health monitoring and failure identification. Applications of these techniques are found in many industry applications in sectors such as automotive, paper and pulp, manufacturing, medical instrumentation, and space electronics.

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