Non-intrusive air-conditioning load identification method and system based on fusion of multi-time scale information
A multi-time-scale, air-conditioning load technology, applied in character and pattern recognition, instrumentation, computing, etc., can solve the problems of high algorithm complexity, poor pertinence, and large amount of calculation, avoiding large neural networks and deep learning. Network, solve the effect of inaccurate start-stop identification and simple logic structure
Active Publication Date: 2021-11-09
STATE GRID JIANGSU ELECTRIC POWER CO LTD MARKETING SERVICE CENT +2
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Problems solved by technology
In the existing non-intrusive load identification methods, on the one hand, the pertinence is not strong, and the ability and accuracy of air-conditioning load identification still need to be improved; Applicability of equipment needs to be enhanced
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Embodiment 1
[0153] In order to further illustrate the non-intrusive air-conditioning load identification algorithm fused with multi-time scale information of the present invention, and to analyze the accuracy of the algorithm in air-conditioning load identification, the preferred embodiment of the present invention selects a fixed-frequency air-conditioner as a typical representative of air-conditioning load. The proposed method identifies the air-conditioning load, and at the same time, the identification algorithm proposed by the present invention is compared with "a non-invasive load identification method for distinguishing between fixed-frequency air conditioners and impact drills". The load curve of an air conditioner under standard working conditions is as follows: figure 2 As shown, the second harmonic current curve of an air conditioner under standard working conditions is as follows image 3 shown.
[0154] Figure 4 It shows the comparison between the method proposed in the p...
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Non -invasive air conditioning load recognition methods and systems that integrate multi -time -scale information, and comprehensively judge the start -stop and operating status of the air conditioning load by intercepting the air conditioning load information on the frequency of the industrial frequency, seconds, and minutes of time.The air conditioning load in the state of multi -electrical appliances is accurate.Based on the high -frequency sampling data of the load, first adopt a sliding window for current impact detection and classification at the time scale of the industrial frequency period, and accurately detect the start time of the load of the air conditioner.Perform power level detection and power fluctuations separately, and position the actual power lifting and landing of the air conditioner load.Finally, the comprehensive three time -scale information is based on the discrimination and power decomposition of the air conditioning load at the start and stop of the air conditioner.The present invention solves the problem of low recognition accuracy caused by the slowdown of air -conditioning load power and high volatility in the existing non -invasive load recognition technology.
Description
technical field [0001] The present invention relates to the technical field of non-intrusive load identification, and more specifically, to a non-intrusive air-conditioning load identification method and system that integrates multi-time scale information. Background technique [0002] With the continuous improvement of the electrification and intelligence level of residential users in our country, smart electricity technologies such as household energy management and residential energy analysis are gradually being piloted and promoted. The intrusive load identification technology can effectively realize the high-precision monitoring of residents' load by adding measurement sensors into the household, but there are many factors that are not conducive to popularization and application, such as high hardware costs and difficulties in household renovation. Since the non-intrusive load identification technology was proposed in 1992, it has quickly attracted extensive attention f...
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IPC IPC(8): G06K9/00G06K9/62G01R31/00
CPCG01R31/00G06F2218/08G06F2218/12G06F18/23G06F18/24155
Inventor 黄奇峰方凯杰左强杨世海黄艺璇刘恬畅程含渺陈铭明李波陆婋泉曹晓冬
Owner STATE GRID JIANGSU ELECTRIC POWER CO LTD MARKETING SERVICE CENT