Automatic Control (AC) at ECE

Stan ŻakECE 200

March 12, 2015

What is Control?• Use of algorithms and feedback to affect the operation of physical

objects/processes of interest to achieve some desired performance

Physical Objects:Plant, Process, System

UserInput

output Controller

Environmental Perturbations

Sensor

ActuatorInput

Example: Cruise Control

Controlled object (car)

(speed y)

Sensor(speedometer)

Display

Actuator (throttle)

Input

(throttle angle u)

Output

Environmental disturbances(road condition, wind, etc.)

ControllerDesired speed

Control Problem: to maintain car speed at the desired level

Measured speed

Examples of Control SystemsRobotics

(Air) Traffic Control

Process Control

Building Control

Vehicle Control

Network Control

Control is Everywhere

• Electrical, mechanical, electromechanical sys.• Aeronautical and astronautical systems• Ecological, Biological systems• Financial systems• …

What is Studied in ControlControl Theory

• Intelligent control• Stochastic control• Sliding mode control• Networked control

• Linear, nonlinear control • Robust control• Adaptive control• Optimal control• Hybrid systems

Control Applications• Building control• Smart grids• VLSI design optimization• Biological systems• And more…

• Power/energy system control• Hybrid electrical vehicles• Intelligent transportation sys.• Control of communication and

network systems

Robotics• Healthcare robots• Learning algorithms• Image processing• Cognitive robots

• Humanoid robots• Mobile robot sensor network• Multi-robot interaction• Human-robot interaction• Fault tolerant robotics

Undergraduate Control Courses

• ECE 382---Feedback System Analysis and Design

• ECE 308---Systems Simulation and Control Laboratory

• ECE 483---Digital Control Systems Analysis and Design

• ECE 569---Introduction to Robotic Systems

AC Faculty in ECEPrimary AC Members:

Other AC Members:

Balakrishnan, Ragu DeCarlo, Ray A. Hu, Jianghai Lee, C. S. George Żak, Stanislaw H.

Sudhoff, Scott D. Pekarek, Steve

Aliprantis, Dionysios

Sundaram, Shreyas

Current AC Research• Control theory

– Adaptive/Robust Control (Prof. Żak, Balakrishnan)– Optimal control and optimization (Prof. Balakrishnan, Żak, Decarlo, Hu)– Intelligent Control (Prof. Lee, Balakrishnan, Żak)– Hybrid Control (Prof. Decarlo, Hu)– Networked control system (Prof. Hu, Sundaram)– Fault-tolerant and secure control (Prof. Sundaram)

Current AC Research• Control Application

– Hybrid electrical vehicle (Prof. Decarlo, Pekarek, Aliprantis)– Power and energy conversion systems (Prof. Pekarek, Sudhoff, Żak)– Control in Communication Networks (Prof. DeCarlo)– Numerical optimization (Prof. Balakrishnan, Żak)– Energy efficient building control (Prof. Hu)– Cyber-Physical Systems (Prof. Sundaram)

Current AC Research

• Robotics (Prof. Lee)– Humanoid robotics– Human-robot interaction– Mobile robotic sensor networks– Healthcare robots