Extremum seeking control with stochastic gradient estimation

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United States of America Patent

PATENT NO 11467544
APP PUB NO 20220308529A1
SERIAL NO

17214812

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Abstract

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A control system for controlling a set of actuators of a system. The control system comprising a switcher configured to select a subset of setpoints from a set of setpoints that control the corresponding set of actuators. An extremum-seeking controller (ESC) configured to perturb a subset of setpoints at each iteration based on a probabilistic distribution of partial gradients of a cost function relating values of the subset of setpoints to a cost of operation of the system. A stochastic gradient estimator is configured to estimate a full gradient of the cost function and update the estimation of the full gradient based on the probabilistic distribution of the partial gradients generated at each ESC iteration. A feedback controller is configured to drive a state of the subset of actuators of the system towards the corresponding perturbed subset of setpoints.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI ELECTRIC RESEARCH LABORATORIES INCCAMBRIDGE MA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bortoff, Scott Brookline, US 10 32
Chakrabarty, Ankush Bedford, US 30 22
Danielson, Claus Somerville, US 16 189
Laughman, Christopher Waltham, US 23 153

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