Building HVAC system with modular cascaded model

US11480360B2 · kind B2 · utility

Assignee

• Johnson Controls Tyco IP Holdings LLP · US

Inventors

• Michael J. Risbeck · Madison, US
• Michael J. Wenzel · Grafton, US
• Mohammad N. Elbsat · Milwaukee, US

Key dates

• Filing date: Jun 19, 2020
• Grant date: Oct 25, 2022
• Expiry date: Jun 19, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/2614
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A controller for HVAC equipment stores a cascaded model that includes a disturbance model configured to predict a heat disturbance affecting the building zone as a function of one or more exogenous parameters and a physics model configured to predict a temperature of the building zone as a function of the heat disturbance and an amount of heating or cooling provided to the building zone by HVAC equipment. The processing circuit is configured to execute a combined training procedure to determine parameters of the disturbance model and parameters of the physics model, generate control signals for the HVAC equipment using the disturbance model to predict the heat disturbance and applying the heat disturbance as an input to the physics model, and operate the HVAC equipment to provide the heating or cooling to the building zone in accordance with the control signals.