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research-article

A Passivity based Power Shaping Control of Building HVAC Systems

[+] Author and Article Information
Venkatesh Chinde

Mechanical Engineering Iowa State University 2025 Black Engineering Ames, USA
vchinde@iastate.edu

Krishna Chaitanya

Electrical Engineering IIT Madras, Chennai, India
kkrishnachaitanya89@gmail.com

Atul Kelkar

Mechanical Engineering Iowa State University 2025 Black Engineering Ames, USA
akelkar@iastate.edu

Ramakrishna Pasumarthy

Electrical Engineering IIT Madras, Chennai, India
ramkrishna@ee.iitm.ac.in

Soumik Sarkar

Mechanical Engineering Iowa State University 2025 Black Engineering Ames, USA
soumiks@iastate.edu

Navdeep Singh

Electrical Engineering VJTI, Mumbai, India
nmsingh59@gmail.com

1Corresponding author.

ASME doi:10.1115/1.4036885 History: Received August 12, 2016; Revised May 16, 2017

Abstract

Regulating indoor air environment is one of the core functions of building energy management system. Heating, Ventilating and Air-conditioning (HVAC) control systems play an important role in adjusting the room temperature to provide occupants a desired level of comfort. Occupant comfort has a direct effect on the energy consumption and providing an optimal balance between comfort and energy consumption is a challenging problem. This paper presents a framework for control of building HVAC systems using a methodology based on power shaping paradigm that exploits the passivity property of a system. The system dynamics are expressed in the Brayton-Moser (BM) form which exhibits a gradient structure with the mixed-potential function, which has the units of power. The power shaping technique is used to synthesize the controller by assigning a desired power function to the closed loop dynamics so as to make the equilibrium point asymptotically stable. The proposed methodology is demonstrated on HVAC subsystems: RC network building zone model and a heat exchanger system.

Copyright (c) 2017 by ASME
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