유닛형 공기조화기 센서의 가상보정 방법 및 적용 특성 분석
Virtual In-situ Sensor Calibration and the Application in Unitary Air Conditioners
1
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Since data-driven building technologies have been widely applied to building energy systems, the accuracy of building sensors has more impacts on the building performance and system performance analysis. Various building sensors, however, can have typical errors including a random error (noise) and a systematic error (bias). The systematic error is indicated by the difference between the mean of measurements and their true value. It may occur due to the sensor's physical condition, measured phenomena, working environments inside the systems. Unfortunately, a conventional calibration method has limitations in calibrating the systematic errors because of the difference between working environments and calibration conditions. In such situations, a novel sensor calibration method is needed to handle various sensor errors, especially for systematic errors, in building energy systems having various thermodynamic environments. This study proposes a building sensor calibration method named Virtual In-situ Calibration (VIC) and shows how it is applied into a real building system and how it solves the sensor errors.
Abstract
Since data-driven building technologies have been widely applied to building energy systems, the accuracy of building sensors has more impacts on the building performance and system performance analysis. Various building sensors, however, can have typical errors including a random error (noise) and a systematic error (bias). The systematic error is indicated by the difference between the mean of measurements and their true value. It may occur due to the sensor's physical condition, measured phenomena, working environments inside the systems. Unfortunately, a conventional calibration method has limitations in calibrating the systematic errors because of the difference between working environments and calibration conditions. In such situations, a novel sensor calibration method is needed to handle various sensor errors, especially for systematic errors, in building energy systems having various thermodynamic environments. This study proposes a building sensor calibration method named Virtual In-situ Calibration (VIC) and shows how it is applied into a real building system and how it solves the sensor errors.
참고문헌 (8)
- Yu, D., "Virtual calibration of a supply air temperature sensor in rooftop air conditioning units", HVAC&R Research, 17(1), pp.31~50 (2011)
- Yoon, S, "Impacts of HVACR temperature sensor offsets on building energy performance and occupant thermal comfort", Building Simulation (2018)[DOI]
- Yoon, S, "Extended virtual in-situ calibration method in building systems using Bayesian inference", Automation in Construction, 73, pp.20~30 (2017)
- Yoon, S., "A quantitative comparison of statistical and deterministic methods on virtual in-situ calibration in building systems", Building and Environment, 115, pp.54~66 (2017)
- Yoon, S, "Hidden factors and handling strategies on virtual in-situ sensor calibration in building energy systems: Prior information and cancellation effect", Applied Energy, 212, pp.1069~1082 (2018)
- Yoon, S, "Hidden factors and handling strategy for accuracy of virtual in-situ sensor calibration in building energy systems: Sensitivity effect and reviving calibration", Energy and Buildings, 170, pp.217~228 (2018)
- Yoon, S, "Strategies for virtual in-situ sensor calibration in building energy systems", Energy and Buildings, 172, pp.22~34 (2018)
- Dudley R.M, "Uniform Central Limit Theorems" (1999), Cambridge University Press