System and method for controlling multi-zone vapor compression systems
First Claim
1. A multi-zone vapor compression system (MZ-VCS), comprising:
- a compressor connected to a set of heat exchangers controlling the environments in a set of zones, wherein there is at least one heat exchanger for each zone;
a supervisory controller including a processor determining a set of control inputs for controlling a vapor compression cycle of the MZ-VCS, wherein the supervisory controller is a model predictive controller determining the set of control inputs using a model of the MZ-VCS including a linear relationship between the thermal capacity of each heat exchanger and the temperature in a corresponding zone controlled by the heat exchanger; and
a set of capacity controllers, wherein there is one capacity controller for each heat exchanger, each capacity controller enforces the linear relationship between the thermal capacity and the temperature in the corresponding zone.
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Abstract
A multi-zone vapor compression system (MZ-VCS) includes a compressor connected to a set of heat exchangers controlling environments in a set of zones. A supervisory controller includes a processor configured for optimizing a cost function subject to constraints on an operation of the MZ-VCS to produce a set of values of the thermal capacity requested for the set of heat exchangers to achieve setpoint temperatures in the corresponding zones. The supervisory controller is a model predictive controller for determining the set of control inputs using a model of the MZ-VCS including a linear relationship between the thermal capacity of each heat exchanger and the temperature in a corresponding zone controlled by the heat exchanger. A set of capacity controllers, wherein there is one capacity controller for each heat exchanger, such that each capacity controller is configured for controlling the corresponding heat exchanger to achieve the requested thermal capacity.
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Citations
18 Claims
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1. A multi-zone vapor compression system (MZ-VCS), comprising:
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a compressor connected to a set of heat exchangers controlling the environments in a set of zones, wherein there is at least one heat exchanger for each zone; a supervisory controller including a processor determining a set of control inputs for controlling a vapor compression cycle of the MZ-VCS, wherein the supervisory controller is a model predictive controller determining the set of control inputs using a model of the MZ-VCS including a linear relationship between the thermal capacity of each heat exchanger and the temperature in a corresponding zone controlled by the heat exchanger; and a set of capacity controllers, wherein there is one capacity controller for each heat exchanger, each capacity controller enforces the linear relationship between the thermal capacity and the temperature in the corresponding zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A multi-zone vapor compression system (MZ-VCS), comprising:
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a set of heat exchangers configured for controlling environments in a set of zones, wherein there is at least one heat exchanger for each zone, wherein the heat exchanger includes an inlet header pipe connected to a set of paths for passing the refrigerant, and wherein the inlet header pipe splits the refrigerant into the set of paths; a supervisory controller including a processor configured for optimizing a cost function subject to constraints on an operation of the MZ-VCS to produce a set of values of the thermal capacity requested for the set of heat exchangers to achieve setpoint temperatures in the corresponding zones, wherein the supervisory controller is a model predictive controller for determining the set of control inputs using a model of the MZ-VSC including a linear relationship between the thermal capacity of each heat exchanger and the temperature in a corresponding zone controlled by the heat exchanger; and a set of capacity controllers, there is one capacity controller for each heat exchanger, wherein each capacity controller is configured for controlling the corresponding heat exchanger to achieve the requested thermal capacity. - View Dependent Claims (15, 16, 17, 18)
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Specification