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Systems and methods for controlling energy input into a building

A technology of energy and control signals, applied in general control systems, control/regulation systems, temperature control using electric methods, etc., can solve problems such as low efficiency and aggravation of energy use

Inactive Publication Date: 2016-03-09
SCHNEIDER ELECTRIC BUILDINGS LLC
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] While PID controllers are more common than general on / off controllers and they offer several advantages, such as simplicity in design and implementation, they can also be vastly inefficient in terms of energy usage
This disadvantage is exacerbated in data centers where heating and cooling are provided for worst case or peak load scenarios

Method used

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  • Systems and methods for controlling energy input into a building
  • Systems and methods for controlling energy input into a building
  • Systems and methods for controlling energy input into a building

Examples

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Embodiment Construction

[0069] The methods and systems described herein provide improved control strategies or systems for heating, ventilation, and air conditioning (HVAC) systems of buildings or other structures. A master control system is provided configured to receive feedback signals carrying information about physical properties of the air from a plurality of separate control volumes, each controlled by an auxiliary PID-type controller. The master controller performs a mathematical method to determine the target set point temperature for each control volume. The mathematical method performed by the primary controller takes into account the interdependence of the individual control volumes on each other, which allows the primary and secondary controllers to work together to achieve one or more states set by the user. These states are related to the desired temperature (or comfort level) of each control volume and the energy utilization rate (or energy cost) of each control volume. The control s...

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Abstract

The invention provides systems and method for controlling energy input into a building. According to one aspect, a system for controlling each control volume of a plurality of control volumes is provided. The system includes a plurality of sensors corresponding to the plurality of control volumes, and each sensor is configured to detect a temperature value of the control volume corresponding to the sensor, and generate a feedback signal for the control volume corresponding to the sensor based on the temperature value. The system further includes a primary controller configured to receive a set point temperature value for each control volume, receive the feedback signal for each control volume, execute a linear quadratic regulator (LQR) control that is configured to determine a target set point temperature value for each control volume based on the set point temperature value for the control volume and the feedback signal for the control volume, and transmit the target set point temperature value for each control volume.

Description

technical field [0001] The technical field relates generally to control systems, and more particularly to systems and methods for improving energy efficiency of multiple control volumes using hierarchical control networks. Background technique [0002] A conventional proportional-integral-derivative controller (PID controller) is a control loop feedback mechanism that controls a process by monitoring a calculated deviation representing the difference between a measured process variable and a desired set point. This type of controller attempts to minimize deviation by regulating process control inputs. [0003] While PID controllers are more common than general on / off controllers and they offer several advantages, such as simplicity in design and implementation, they can also be substantially inefficient in terms of energy usage. This disadvantage is exacerbated in data centers, where heating and cooling are provided for worst case or peak load scenarios. Contents of the i...

Claims

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Application Information

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IPC IPC(8): G05B13/04
CPCG05B15/02G05B11/42G05D23/30G06F17/16
Inventor 阿卜杜拉希姆·伯哈尔
Owner SCHNEIDER ELECTRIC BUILDINGS LLC
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