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189 results about "Weather parameter" patented technology

Weather is made up of multiple parameters, including air temperature, atmospheric (barometric) pressure, humidity, precipitation, solar radiation and wind. Each of these factors can be measured to define typical weather patterns and to determine the quality of local atmospheric conditions.

Photovoltaic power generation system power predicting method of elman-based neural network

The invention discloses a photovoltaic power generation system power predicting method of an elman-based neural network. The method comprises the steps of obtaining generated power historical data and corresponding historical weather parameter information of photovoltaic power generation equipment at the related area, determining input data and output data of the neural network, determining the optimal number of hidden layer neurons, building the elman-based neural network accordingly, carrying out normalization processing on the generated power historical data and the historical weather parameter information, training the built neural network according to the data obtained after normalization processing is carried out, controlling prediction errors of the elman-based neural network to be within the preset range accordingly, regarding generated power historical data of one week before the prediction day and weather parameter data of the prediction day as input, and predicting the generated power of the prediction day through the trained neural network. The method has the advantages of being stable and high in time-varying adaptability and prediction precision, and can be widely applied to the field of photovoltaic power generation.
Owner:GUANGZHOU HKUST FOK YING TUNG RES INST

Method and device for testing air-conditioning filter screen cleanliness, electronic equipment and storage medium

The invention provides a method and device for testing air-conditioning filter screen cleanliness, electronic equipment and a storage medium. The method comprises the following steps of obtaining operation parameters of the current cycle of air-conditioning equipment and local weather parameters; obtaining the filter screen usage information of the current cycle of the air-conditioning equipment according to the operating parameters of the current cycle of the air-conditioning equipment and the local weather parameters; generating the filter screen cleaning prompt information of the current cycle of the air-conditioning equipment according to the filter screen usage information of the current cycle of the air-conditioning equipment and the filter screen usage information of each historicalcycle in the cumulative period when a filter screen is not cleaned; and sending the filter screen cleaning prompt information to preset target equipment. The technical problem that an air-conditioning filter screen cleanliness in the prior art has high cost and low accuracy can be effectively solved, and the situation that the use condition of the air-conditioning filter screen is determined according to the actual use of the air-conditioning equipment and air condition is achieved, so that the accuracy of the air-conditioning filter screen cleanliness testing is improved while the cost is reduced.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

Central heating system on-demand precise regulation and control method based on models

The invention discloses a central heating system on-demand precise regulation and control method based on models. The method comprises the following steps that S1, a heating station load predicting model is built according to the historical operation data of a heating station and weather data; S2, the next-day short-term heat load of the heating station is predicted under the given weather condition; S3, needed secondary side heat supply and flow are determined according to the needed heat load; S4, a plate exchange model of a heating station heat exchanger is built; S5, the needed primary side valve opening degree is calculated through the plate exchange model according to the needed heat load and secondary side heat supply temperature, and related control operation is executed accordingly; S6, a data driving model of the relation among the room temperature, return water temperature and weather parameters of all buildings is built; and S7, the set value of the return water temperatureof all building openings is calculated according to the models, so that adjusting valves of the building openings track the value. According to the method, the situation of excessive supply of the heating station can be effectively avoided, heat energy loss can be reduced, and the utilization efficiency of the heating station on energy is improved.
Owner:ZHEJIANG UNIV

Air conditioner and adjusting method and device for air conditioner running strategy

The invention discloses an air conditioner and an adjusting method and device for an air conditioner running strategy. The method comprises the steps that historical running data and historical weather parameters of the air conditioner are acquired, wherein the historical running data correspond to a working strategy of the air conditioner; the working strategy of the air conditioner is adjusted to a target running strategy according to the historical running data; after current weather parameters are detected, weather difference values between the current weather parameters and the historicalweather parameters are determined; and if it is determined that the weather difference values between the current weather parameters and the historical weather parameters are within a preset weatherrange, the current working strategy of the air conditioner is adjusted to the target running strategy. According to the air conditioner and the adjusting method and device for the air conditioner running strategy, the technical problems that in the related technologies, the air conditioner using comfortableness is poor for a user and energy consumption is high due to the fact that a control strategy of the air conditioner can not be matched with the actual environment, and output abnormity and frequent starting and stopping are prone to occurring are solved.
Owner:GREE ELECTRIC APPLIANCES INC

Poisson distribution-based power transmission line tripping risk assessment method

The invention belongs to the power transmission line risk early warning assessment technical field and relates to a Poisson distribution-based power transmission line tripping risk assessment method. According to the method, a regional power grid is divided into a plurality of meteorological regions according to historical meteorological data; ledger information, meteorological information, tripping information and the like of a power transmission line are organized according to the regions; a power transmission line fault rate distribution formula is established based on a Poisson distribution equation; meteorological parameters in the meteorological regions are segmented; distribution parameters and meteorological data of meteorological blocks are put into statistics; and a regression analysis method is adopted to establish a power transmission line tripping probability distribution model of wind and rain weather parameters, wherein the power transmission line tripping probability distribution model is used for assessing tripping risks under heavy rain and strong wind environments. According to the Poisson distribution-based power transmission line tripping risk assessment method of the invention, the tripping rate of the power transmission line is analyzed, and with the increase of statistical data, the accuracy of the method is continuously increased; and Poisson distribution is adopted to perform risk prediction, and therefore, the method is more suitable for random event prediction of an approaching time period.
Owner:ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD

Building electrical load comprehensive prediction method and system based on LSTM neural network

The invention discloses a building electrical load comprehensive prediction method and system based on an LSTM neural network. The method comprises the steps of obtaining load data, weather parametersand building data of a typical building and performing normalization processing; establishing an electrical load prediction model of the LSTM neural network, selecting data of similar typical days astraining samples, wherein the training data comprises weather factors of the training days, building type data and load data, and training is carried out with the minimum electrical load error as thetarget in the training process to obtain LSTM neural network model parameters; and inputting building data of a to-be-tested building to the trained electrical load prediction model of the LSTM neural network, and then obtaining a typical daily load curve, a monthly load curve and an annual load curve corresponding to the building. According to the building load prediction method based on the LSTM neural network, different characteristics and load fluctuation change conditions of a building are comprehensively considered to realize high-precision load prediction of the building, and the method has the functions of high precision and easy realization.
Owner:SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP

Air conditioner heating control method, controller, and air conditioner

The application relates to an air conditioner heating control method, a controller and an air conditioner, and belongs to the air conditioner heating technology field. The air conditioner heating control method includes: acquiring weather parameters, wherein the weather parameters comprise temperature and humidity; confirming if normal heating running is needed or defrosting heating running is needed according to the weather parameters; and performing heating running control according to a confirmed result, wherein under the normal heating running, all coolant output by a compressor flows towards an indoor heat exchanger, and under the defrosting heating running, a part of the coolant flows into the indoor heat exchanger, the other part of the coolant flows towards a part, confirmed to perform defrosting, of heat exchange units in an outdoor heat exchanger, and the other heat exchange units in the outdoor heat exchanger are in a normal work state. The air conditioner heating control method can achieve adaptive continuous heating control by using the weather parameters, facilitates grasp of switching time of the normal heating running and the defrosting heating running well, and then facilitates improvement of heating effect and improvement of comfort experience of users.
Owner:GREE ELECTRIC APPLIANCES INC

k-VNN- and LS-SVM-based modelling method for icing of electric transmission line

The invention discloses a k-VNN- and LS-SVM-based modelling method for the icing of an electric transmission line. The k-VNN- and LS-SVM-based modelling method comprises the following steps of: taking the historical data provided by the micro-weather station of an overhead line structure as basis, reading in micro-weather parameter values and converting the micro-weather parameter values to a vector form; introducing a k-VNN algorithm so as to select proper samples from a line icing sample database, and calculating the Euclidean distances and included angle information of information vectors; selectively deleting and reserving the similar areas, that is, adjacent points, of the information vectors to form a training sample; optimizing the quantity of the samples selected by the k-VNN adjacent algorithm, by a cross-validation method, so as to acquire proper parameters such as the width delta of a kernel function K(xi, xj) and an error penalty factor gamma in an LS-SVM model, and finding the optimal one; after the parameters are set, training related data by a least squares support vector machine (LS-SVM), and finally acquiring an icing thickness. The algorithm disclosed by the invention is high in prediction accuracy, extremely fast in speed, and suitable for short-term icing prediction for the icing of the electric transmission line.
Owner:NANJING INST OF TECH

Simulation test method and device, computer equipment and storage medium

The invention relates to a simulation test method and device, computer equipment and a storage medium. The method can be applied to a simulation test of an artificial intelligence algorithm, and further comprises the following steps: creating a simulation radar in a simulation environment, and setting a virtual target in the simulation environment; obtaining weather parameters corresponding to thesimulation weather state generated in the simulation environment; controlling the simulation radar to emit a radar signal at a set emission energy value in a simulation environment; after the radar signal detects the virtual target, obtaining an echo energy value corresponding to the radar signal in a simulated weather state based on the emission energy value and the weather parameter; and performing a simulation test according to the echo energy value. According to the technical scheme provided by the invention, the attenuation of the radar signal in the corresponding real weather state canbe effectively reflected, that is, the echo energy value is more suitable for the actual situation, the effectiveness of radar system simulation is improved, and the subsequent simulation test carriedout according to the echo energy value is more reliable.
Owner:TENCENT TECH (SHENZHEN) CO LTD
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