Regulating indoor air environment is one of the core functions of building energy management system. Heating, ventilation, 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.
A Passivity-Based Power-Shaping Control of Building HVAC Systems
Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received August 12, 2016; final manuscript received May 16, 2017; published online July 28, 2017. Assoc. Editor: Yang Shi.
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Chinde, V., Kosaraju, K. C., Kelkar, A., Pasumarthy, R., Sarkar, S., and Singh, N. M. (July 28, 2017). "A Passivity-Based Power-Shaping Control of Building HVAC Systems." ASME. J. Dyn. Sys., Meas., Control. November 2017; 139(11): 111007. https://doi.org/10.1115/1.4036885
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