Modeling and Control of the Precision for the Building Energy Consumption Monitoring System

Abstract:

Building energy conservation has become to be one of the major tasks of promoting energy conservation and raise the efficiency of energy consumption. Meters are the source of data, it is important to study data precision model based on the accuracy of the error analysis method. This paper firstly introduces error analysis, error distribution and error control theory, then take electric and heat meters for example to describe the error analysis and error distribute methods. The results show that when the precision level of voltage is 0.2, current is 0.2 and power factor is 0.5, the maximum relative error of electrical quantity can be controlled less than 1%, meet the requirement of measurement. The total relative error of heat meter is inverse proportion with temperature difference of sensor and water flow, and when the temperature difference remains unchanged, the error of heat meter trends to main steady if the instant flow of water more than half of the normal flow value.

• Periodical: Applied Mechanics and Materials (Volumes 193-194)
• Pages: 66-71
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.193-194.66
• Online since: August 2012
• Authors: Liang Zhao, Ji Li Zhang, Ruo Bing Liang, Yong Pan Chen
• Keywords: Energy Consumption Monitor, Error Analysis, Error Control, Error Distribution

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