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Adaptive Disturbance Observers for Building Thermal Model

  • Mallikarjun Soudari
  • Seshadhri Srinivasan
  • B. Subathra
Conference paper
  • 36 Downloads

Abstract

Space cooling in buildings is influenced by thermal dynamics, which in turn is affected by ambient conditions, solar radiation, occupancy, stray heating and various other disturbances that are time-varying and nonlinear. This investigation presents an adaptive disturbance observer for estimating the thermal states of the building depending on the disturbance influences. In our approach, the building is modelled as an electrical equivalent circuit and the disturbance influences are modelled as exogenous inputs. Then an adaptive observer is designed for estimating the disturbances and providing accurate state estimates. Further, we also provide the conditions in which the adaptive observer provides an estimate of the disturbance. The proposed approach is illustrated on a test building with an air conditioner controlled using a thermostat. Our studies showed that the proposed observer provided accurate estimation of temperature depending on the disturbances.

Keywords

Adaptive disturbance estimator Thermal model Disturbance observer 

Abbreviations

ADE

adaptive disturbance estimator

BCTVB

building controls virtual test bed

BDA

building design advisor

EKF

extended Kalman filter

IDA

indoor climate and energy

MPC

model predictive control

SVR

support vector machines

TRNSYS

transient system simulation tool

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Mallikarjun Soudari
    • 1
  • Seshadhri Srinivasan
    • 2
  • B. Subathra
    • 1
  1. 1.Department of Instrumentation and Control EngineeringKalasalingam Academy of Research and EducationKrishnan KoilIndia
  2. 2.Berkeley Education Alliance for Research in SingaporeSingaporeSingapore

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