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Robust optimal control of power hardware in the loop systems
Power-Hardware-In-the-Loop is an advanced simulation infrastructure that allows connecting power producing devices to real-time grid simulators. The project aims at designing an interface which ensures robust stability and performance and testing it at the Hydro Quebec Research Institute.
Keywords: robust control, H-infinity, hardware in the loop, control theory, optimization, robust optimal control
Power-Hardware-In-the-Loop (PHIL) is an advanced simulation infrastructure that allows connecting power producing (consuming) devices to performant real-time grid simulators. Such an infrastructure is currently under development at IREQ (Hydro-Québec Research Institute).
PHIL requires a well-designed power amplifier and an associated interface. The latter is comprised of a set of measurements and signals exchanged between the two systems. It must ensure stable performance for a wide range of system parameters, while preserving the fidelity of the simulation results without introducing unexpected closed-loop dynamics. The challenging aspects of the interface design are the presence of delays, hardware limitations, multiple time steps and rate transitions, and varying operating conditions.
Robust optimal control has been previously investigated as a technique to design the PHIL interface. The advantages of this technique is that it is systematic and tractable, allows to shape the desired performance and provides quantifiable metrics of stability and performance. The aim of the current project will be to improve the performance for severe transient events, for which characterising the uncertainty set of the plant is difficult.
The work is expected to be geared towards a practical implementation at IREQ, and thus, the design must consider limitations of real-time systems.
The applicants are expected to have a strong background in control, and must have attended the course Control Systems 2. Experience with Matlab/Simulink is beneficial. Kindly attach your resume/CV and transcript of records with the application.
Power-Hardware-In-the-Loop (PHIL) is an advanced simulation infrastructure that allows connecting power producing (consuming) devices to performant real-time grid simulators. Such an infrastructure is currently under development at IREQ (Hydro-Québec Research Institute).
PHIL requires a well-designed power amplifier and an associated interface. The latter is comprised of a set of measurements and signals exchanged between the two systems. It must ensure stable performance for a wide range of system parameters, while preserving the fidelity of the simulation results without introducing unexpected closed-loop dynamics. The challenging aspects of the interface design are the presence of delays, hardware limitations, multiple time steps and rate transitions, and varying operating conditions.
Robust optimal control has been previously investigated as a technique to design the PHIL interface. The advantages of this technique is that it is systematic and tractable, allows to shape the desired performance and provides quantifiable metrics of stability and performance. The aim of the current project will be to improve the performance for severe transient events, for which characterising the uncertainty set of the plant is difficult.
The work is expected to be geared towards a practical implementation at IREQ, and thus, the design must consider limitations of real-time systems.
The applicants are expected to have a strong background in control, and must have attended the course Control Systems 2. Experience with Matlab/Simulink is beneficial. Kindly attach your resume/CV and transcript of records with the application.
The goals of the project are:
1. To formulate the robust optimal control problem which explicitly deals with the scenarios of severe transients.
2. To implement the proposed design using Matlab and deliver a low order real-time implementable cotroller.
3. To validate the controller under multiple scenarios using simulations, and (if possible) perform real time tests on a PHIL prototype at IREQ.
The goals of the project are:
1. To formulate the robust optimal control problem which explicitly deals with the scenarios of severe transients. 2. To implement the proposed design using Matlab and deliver a low order real-time implementable cotroller. 3. To validate the controller under multiple scenarios using simulations, and (if possible) perform real time tests on a PHIL prototype at IREQ.
Anil Parsi <aparsi@control.ee.ethz.ch>,
Prof. Roy S. Smith <rsmith@control.ee.ethz.ch>
Anil Parsi <aparsi@control.ee.ethz.ch>, Prof. Roy S. Smith <rsmith@control.ee.ethz.ch>