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Predictor-based optimal control of supply temperature in district heating systems

Conference:

Abstract

A modified version of the linear quadratic Gaussian controller is presented, which is built upon the prediction form of the model. This implies that the controller is more capable of handling non-stationarities, like time-varying model parameters, than the classical type of linear quadratic Gaussian controller, which usually is based on the solution of the Diophantine or the Riccati Equation (in the state-space case). The linear quadratic Gaussian controller is used in a simulation study together with a transfer function model, with time-varying parameters, that describes the relations between supply temperature of the water from a district heating plant and the supply temperature at specific locations in the distribution network. The simulation results show that the variance of the differenced control signal can be reduced drastically without affecting the performance of the controller significantly. (au) (11 refs.).
Publication Date:
Dec 01, 1991
Product Type:
Conference
Report Number:
DTH-IMSOR-RR-1991-21; CONF-920312-1
Reference Number:
SCA: 320603; PA: DK-92:001878; SN: 93000918280
Resource Relation:
Conference: International IFAC symposium on control of power plants and power systems,Munich (Germany),9-11 Mar 1992; Other Information: DN: EFP-89; PBD: Dec 1991
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; DISTRICT HEATING; TEMPERATURE CONTROL; PREDICTION EQUATIONS; GAUSSIAN PROCESSES; MATHEMATICAL MODELS; TIME-SERIES ANALYSIS; COMPUTERIZED CONTROL SYSTEMS; SIMULATION; 320603; PUBLIC UTILITIES
OSTI ID:
10113605
Research Organizations:
Technical Univ. of Denmark, Lyngby (Denmark). Inst. of Mathematical and Operations Research
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: ON: DE93752969; CNN: Contract ENS-1323/89-14; TRN: DK9201878
Availability:
OSTI; NTIS
Submitting Site:
DK
Size:
18 p.
Announcement Date:
Jun 30, 2005

Conference:

Citation Formats

Palsson, O P, Madsen, H, and Soegaard, H T. Predictor-based optimal control of supply temperature in district heating systems. Denmark: N. p., 1991. Web.
Palsson, O P, Madsen, H, & Soegaard, H T. Predictor-based optimal control of supply temperature in district heating systems. Denmark.
Palsson, O P, Madsen, H, and Soegaard, H T. 1991. "Predictor-based optimal control of supply temperature in district heating systems." Denmark.
@misc{etde_10113605,
title = {Predictor-based optimal control of supply temperature in district heating systems}
author = {Palsson, O P, Madsen, H, and Soegaard, H T}
abstractNote = {A modified version of the linear quadratic Gaussian controller is presented, which is built upon the prediction form of the model. This implies that the controller is more capable of handling non-stationarities, like time-varying model parameters, than the classical type of linear quadratic Gaussian controller, which usually is based on the solution of the Diophantine or the Riccati Equation (in the state-space case). The linear quadratic Gaussian controller is used in a simulation study together with a transfer function model, with time-varying parameters, that describes the relations between supply temperature of the water from a district heating plant and the supply temperature at specific locations in the distribution network. The simulation results show that the variance of the differenced control signal can be reduced drastically without affecting the performance of the controller significantly. (au) (11 refs.).}
place = {Denmark}
year = {1991}
month = {Dec}
}