System and method for model-based control of a building fluid distribution system
View Patent ↗A system and method generates test vectors and a corresponding test program to manipulate terminal units in a building system so pressure and flow measurements correspond to independent modeling equations. The pressure and flow responses of the building system to the test program manipulation may be used to compute loss coefficients for the modeling equations. The modeling equations may then be updated with the computed loss coefficients so a building simulation may be performed. The simulated static pressure response of the modeling equations may be compared to measured static pressures to evaluate the sufficiency of the modeling equations.
1. A system for generating a building system test program comprising:
a test vector generator for generating test vectors corresponding to building system test conditions, the generated test vectors identifying flow rates for at least some terminal units in the building system and the identified flow rates being generated from random numbers mapped to a flow rate within a dynamic range of flow rates for a terminal unit; and
a building system controller instruction generator for converting the generated test vectors into instructions for operating at least one controller in a building system.
2. The system of claim 1 wherein the random numbers are evaluated for modification before being used to identify a flow rate.
3. A system for generating a building system test program comprising:
a test vector generator for generating test vectors corresponding to building system test conditions;
a building system controller instruction generator for converting the generated test vectors into instructions for operating at least one controller in a building system; and
a loss coefficient generator for generating loss coefficients for modeling equations used to describe the building system.
4. The system of claim 3 wherein the loss coefficient generator generates a duct layout for the building system.
5. The system of claim 3 wherein the loss coefficient generator generates a constraint matrix and a pressure vector for computing loss coefficients.
6. The system of claim 5 wherein regression analysis of the constraint matrix and pressure vector is used to compute the loss coefficients.
7. The system of claim 3 further comprising:
a building system simulator for simulating building system responses from modeling equations having loss coefficients generated by the loss coefficient generator.
8. A method for generating a building system test program comprising:
generating test vectors corresponding to building system test conditions, the test vectors identifying flow rates for at least some terminal units in the building system with generated random numbers that are mapped to a flow rate within a dynamic range of flow rates for a terminal unit; and
converting the generated test vectors into instructions for operating at least one controller in a building system.
9. The method of claim 8 further comprising:
evaluating the random numbers for modification before being used to identify a flow rate.
10. A method for generating a building system test program comprising:
generating test vectors corresponding to building system test conditions;
converting the generated test vectors into instructions for operating at least one controller in a building system; and
generating loss coefficients for modeling equations used to describe the building system.
11. The method of claim 10 wherein the loss coefficient generation includes generating a duct layout for the building system.
12. The method of claim 10 wherein the loss coefficient generation includes generating a constraint matrix and a pressure vector for computing loss coefficients.
13. The method of claim 12 wherein the loss coefficient generation includes computing the loss coefficients from a regression analysis of the constraint matrix and pressure vector.
14. The method of claim 13 further comprising:
simulating building system responses from modeling equations having
loss coefficients generated by the regression analysis of the constraint
matrix and pressure vector.
15. The method of claim 14 wherein the building system responses simulation is performed with a first group of off-the-shelf programs.
16. The method of claim 15 wherein the loss coefficient generation is performed with a second group of off-the-shelf programs.
17. The method of claim 16 wherein the test vector generation and test vector conversion is performed with a third group of off-the-shelf programs.
18. The method of claim 17 further comprising:
executing the off-the-shelf programs of the first, second, and third groups
at a remotely located central platform.
19. The method of claim 18 wherein the off-the-shelf program execution is automatically executed.