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214 results about "Energy load" patented technology

Load is the amount of demand placed on an energy system. In the case of most electricity, load could be the set of equipment appliances that use the electrical power from the generating source, battery or module, and the amount of electricity (the load) that those appliances require.

Multi-domain collaborative flexible load schedulable potential evaluation and energy management method

The invention discloses a multi-domain collaborative flexible load schedulable potential evaluation and energy management method, and relates to the technical field of park energy management, and the method comprises the steps: obtaining space-time multi-source data of a smart park, constructing a graph neural network power consumer clustering model based on iterative self-organization analysis, and generating a power consumption behavior portrait of a power consumer; based on power utilization parameters of building air conditioners, electric vehicles, park ponds and energy storage batteries in the smart park, the schedulable potential of the multi-element flexible resources is evaluated; and based on the hybrid neural network and the Harris eagle optimization algorithm, constructing a load prediction model, and predicting various types of energy loads in a future time period. The invention aims to establish an accurate model and method, accurately evaluate the schedulable potential of different types of flexible loads in different scenes, realize efficient utilization, energy conservation and emission reduction and optimal configuration of park energy, and improve the overall energy management level and operation efficiency of the park.
Owner:BEIJING JIAOTONG UNIV

Energy optimization decision system based on cloud computing

The invention discloses an energy optimization decision-making system based on cloud computing, and belongs to the technical field of energy optimization, and the method specifically comprises the steps: collecting energy consumption data and environmental parameter data of energy consumption equipment, carrying out the preprocessing, extracting space-time joint feature vectors of the energy consumption data and the environmental parameter data of the energy consumption equipment, and carrying out the calculation of the space-time joint feature vectors; constructing a space-time collaborative prediction model of dynamic heterogeneous graph fusion, predicting energy load in a future preset time period, establishing a multi-target optimization model including economic cost, carbon emission and equipment loss, and solving the multi-target optimization model to generate an optimal scheduling instruction; according to the method, millisecond-level data analysis and scheduling optimization are realized through the dynamic heterogeneous graph fused space-time collaborative prediction model and cloud computing, and the method is suitable for large-scale complex scenes and cross-domain collaborative scheduling.
Owner:YANCHENG SHURONGZHISHENG TECH CO LTD

Method and system for multi-energy load forecasting in the absence of historical data for an integrated energy system

A multi-energy load forecasting method, a multi-energy load forecasting system, an electronic device, a program, and a storage medium are provided that realize accurate long-term forecasting of multi-energy loads in a target integrated energy system under conditions where no historical load data is available. [Solution] A multi-energy load forecasting method for an integrated energy system without historical data involves obtaining the meteorological characteristics of a target complex and the cooling, heating, electricity, and gas historical data of a source domain group complex, preprocessing the obtained data, performing cross-correlation and generalization ability analysis of the complex on the preprocessed cooling, heating, electricity, and gas historical data of the source domain group complex, determining appropriate source domain data, constructing a multi-energy load forecasting model, training the model based on the source domain data according to the Metas training policy, obtaining a trained forecasting model, and inputting the preprocessed meteorological characteristics of the target complex into the forecasting model to obtain a forecast result.
Owner:SHANDONG UNIV

Airport energy balance management method, system, equipment and medium

The invention discloses an airport energy balance management method, system and device and a medium, and relates to the field of energy management. The method comprises the following steps: constructing an energy topological graph according to multi-source data; predicting energy load demands of the airport in different time periods according to the energy topological graph, determining the supply amount of renewable energy in different time periods according to the predicted illumination intensity and wind power, and determining a time-sharing energy supply and demand balance probability according to the energy load demands and the supply amount; determining a preliminary energy management plan according to the cost parameter, the time-sharing energy supply and demand balance probability and the equipment operation constraint, wherein the preliminary energy management plan comprises an energy storage system charging and discharging time sequence, a standby generator starting and stopping plan and a power grid electricity purchasing proportion; and executing the preliminary energy management plan through the digital twin of the airport to obtain first energy execution data, and adjusting the preliminary energy management plan through the difference between the first energy execution data and the second energy execution data at the current moment. By implementing the technical scheme provided by the invention, the energy cost is reduced.
Owner:NANJING LUKOU INT AIRPORT AIRPORT TECH CO LTD

Energy terminal-oriented dynamic load prediction distribution optimization method and system

The invention relates to the technical field of energy load prediction distribution optimization, in particular to an energy terminal-oriented dynamic load prediction distribution optimization method and system. The method comprises the following steps: generating a load prediction value by using a long short-term memory network based on acquired terminal load data; constructing a load priority matrix and a load distribution conflict rule set, and constructing a multi-factor integration constraint model in combination with the optimization parameters of the load predicted value; dynamically correcting the model based on the load prediction value; an integer programming problem is solved, and a distribution instruction of each terminal is obtained; and performing execution control based on the distribution instruction. The distributed acquisition unit supports multiple communication modes, acquires and normalizes various types of terminal data, loads a virtual value compensation model for checking abnormal nodes, guarantees data integrity and reliability, improves the processing capability of the system for multi-source heterogeneous data, and enhances compatibility and robustness.
Owner:SHANDONG FUTURE NETWORK RES INST (PURPLE MOUNTAIN LAB IND INTERNET INNOVATION APPL BASE)

Comprehensive energy load prediction method and system based on modal decomposition and TCN-Transform fusion

The invention discloses an integrated energy load prediction method and system based on modal decomposition and TCN-Transform fusion, and aims to solve the key problems of low prediction precision, insufficient utilization of meteorological factor and load correlation, insufficient optimization of a model structure and the like in integrated energy system load prediction. The method comprises the following steps: comprehensively acquiring electric load, cold load, thermal load and various meteorological data, acquiring different types of data by adopting a special device, and then preprocessing the data; using a maximum information coefficient correlation analysis method to screen remarkably related meteorological features; determining an optimal decomposition parameter in combination with variational mode decomposition and a crown porcupine optimization algorithm; a prediction model fusing TCN and Transform advantages is constructed, and the structure is optimized according to load prediction characteristics; the precision and stability of load prediction of the integrated energy system are remarkably improved, the relation between the integrated energy load and external factors is reflected more comprehensively, and a reliable load prediction basis is provided for optimized operation and management of the integrated energy system.
Owner:CHINA THREE GORGES UNIV

Classification aggregation identification method based on adjustable load response performance

The invention discloses a classification aggregation identification method based on adjustable load response performance, and the method comprises the steps: constructing index order-based classification according to a integrating degree index and an access standard, and dividing adjustable load resources managed by a virtual power plant into a main energy load resource set, a frequency modulation load resource set, a standby load resource set and a comprehensive load resource set; and aggregating the classified resources by using a self-organizing mapping (SOM) clustering method based on feature vectors, and performing external characteristic identification analysis on an aggregate based on maximum flexibility. According to the method, the adaptation degree of the adjustable load resources and the power transaction products is fully considered, corresponding integrating degree indexes are set, classification is carried out in a bit order sorting mode, and the adjustable load resources in different categories are aggregated by adopting a self-organizing mapping neural network (SOM) clustering method based on feature vectors, so that the power transaction products are classified. And finally, evaluating the external characteristics of the polymer by adopting an external characteristic identification mode with maximized flexibility.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO +1

Comprehensive energy low-carbon optimization scheduling method and system based on master-slave game

The invention discloses a comprehensive energy low-carbon optimization scheduling method and system based on a master-slave game. The method comprises the following steps: constructing a hydrogen-containing comprehensive energy system model, and inputting data of an external energy supply side, energy conversion and energy storage equipment and a load side to obtain initialized system operation parameters; building a user side model based on the model, generating an initial electricity / heat load demand, calculating a user alternative energy consumption rate and dynamically adjusting an electricity / heat energy conversion ratio in combination with a price difference of real-time electricity and heat prices and user energy consumption behavior characteristics, and forming a new electricity / heat load distribution scheme; the integrated energy operator generates an electricity / heat price signal and formulates a dual excitation strategy, the user aggregator adjusts the user energy load and response strategy according to the signal and the strategy and feeds back the strategy to the integrated energy operator, and the user aggregator and the integrated energy operator adjust bidirectional feedback iteration to solve Stackelberg balance through the electricity / heat price signal and the load to obtain an optimal scheduling scheme. According to the invention, economic low-carbon operation and benefit win-win between subjects can be realized.
Owner:HOHAI UNIV

Wind power-containing electric power system source load cooperative scheduling method considering smelting type high-energy load participation

The invention discloses a wind power-containing electric power system source load collaborative scheduling method considering the participation of a smelting type high-energy load, and the method comprises the steps: analyzing the scheduling demands of a wind power-containing electric power system, and building a model considering the load of an electric arc furnace and the wind power output uncertainty based on the schedulable characteristics of the load of the electric arc furnace; a data driving method is adopted to generate a large-scale scene, the uncertainty superposition influence of the electric arc furnace load and the wind power output is analyzed, and the reserve capacity needed by the electric power system for coping with uncertainty fluctuation is determined; a smelting type high-energy load self-adaptive electricity price mechanism considering wind power output change and source load fluctuation is provided, and iron and steel enterprises are stimulated to participate in demand response; and establishing an optimal scheduling model giving consideration to interests of multiple parties, and solving an optimal scheduling scheme by adopting an artificial bee colony algorithm. According to the method, economic benefits and social responsibilities of smelting type high-energy load enterprises are considered, support is provided for the enterprises to participate in consumption of blocked wind power, and new energy consumption and economic and stable operation of a power system are facilitated.
Owner:JIAYUGUAN HONGSHENG ELECTRIC HEATING CO LTD

Carbon emission dynamic prediction method and system based on multi-energy load data

The invention discloses a carbon emission dynamic prediction method and system based on multi-energy load data. The method comprises the following steps: collecting and preprocessing carbon emission, energy consumption and multi-energy load consumption historical data of a park, calculating a joint correlation coefficient, and screening energy types; calculating an initial carbon emission-energy conversion matrix and an energy-multi-load conversion matrix; constructing a carbon emission coupling objective function, and solving and updating a corresponding conversion matrix by alternately fixing a carbon emission-energy and energy-multi-energy load conversion matrix; establishing a carbon emission coupling model, calculating a predicted carbon emission error, constructing a predicted error correction objective function, and correcting a conversion matrix; and S4, predicting the multi-energy load consumption in the (M + 1) th month and correcting errors, and predicting the carbon emission in the (M + 1) th month in combination with the conversion matrix corrected in the step S4. According to the method, the conversion relation between the carbon emission and the multi-energy load can be dynamically adjusted, and the accuracy of carbon emission prediction and the response capacity to actual working condition changes are remarkably improved.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO

Regional integrated energy system optimization method and system

The invention discloses a regional integrated energy system optimization method and system, and the method comprises the steps: S1, constructing a multi-energy demand response model, and carrying out the linkage scheduling among multi-energy loads based on the multi-energy demand response model; s2, designing and optimizing a stepped carbon transaction mechanism; and S3, performing multi-objective optimization and cooperative operation. According to the invention, through a three-layer optimization architecture of multi-energy demand response, stepped carbon transaction and multi-target cooperation, economic, low-carbon and efficient cooperation optimization of the regional integrated energy system is realized, and the blank of the traditional technology in the aspects of multi-energy flow linkage scheduling, dynamic carbon price excitation and new energy refined consumption is filled.
Owner:YICHANG ELECTRIC POWER SURVEY & DESIGN INST +3

Privacy protection multi-energy load day-ahead probability prediction method based on diffusion model

The invention provides a privacy protection multi-energy load day-ahead probability prediction method based on a diffusion model, and belongs to the field of multi-energy load prediction of an integrated energy system. Comprising the following steps: S1, acquiring respective energy consumption load data by a local main body, and preprocessing and normalizing the data; s2, dividing the energy consumption data into historical loads and labels, and respectively training two groups of self-encoders-self-decoders; s3, the local main body uploads the latent variables obtained after coding to the cloud; s4, grouping and integrating latent variables by the diffusion model of the cloud, and constructing a joint probability prediction model; and S5, during model reasoning, after a latent variable generated by the cloud is downloaded locally, a final predicted value is obtained through decoding by a self-decoder. According to the method, a prediction framework based on longitudinal federated learning is designed for a multi-energy load probability prediction scene related to a cross-energy form in an integrated energy system, and a diffusion model capable of predicting multi-energy load joint probability distribution is constructed by considering a coupling relationship among multi-energy loads.
Owner:JIANGSU QINGCARBON DIGITAL ENERGY TECHNOLOGY CO LTD

Multi-energy load prediction method based on feature screening and multi-model fusion

The invention discloses a multi-energy load prediction method based on feature screening and multi-model fusion, and belongs to the field of electric power and comprehensive energy load prediction. The invention provides a three-stage hybrid learning prediction framework. In the first stage, dynamic feature screening is achieved through a recursive feature elimination cross validation method based on expert knowledge constraints, key meteorological elements and multi-energy load time sequence features are reserved, and redundant feature interference is reduced. In the second stage, a multi-task long-short-term memory network is constructed, and coupling relation modeling and collaborative prediction of cold, heat and electricity multi-energy loads are achieved through sharing time sequence characteristic representation and a task exclusive output structure. And in the third stage, a random forest is adopted to carry out nonlinear correction on the residual error of the sub-model, so that the precision and robustness of prediction in sudden disturbance and local non-stationary scenes are improved, the prediction error is effectively reduced, and the stability of multi-energy load prediction is improved. And reliable support is provided for optimized operation, scheduling decision and renewable energy consumption of the park integrated energy system.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER

Load management operation method for comprehensive energy optimization configuration

The invention discloses a load management operation method for comprehensive energy optimal configuration, and relates to the technical field of energy management, and the method comprises the following specific steps: microclimate partition division: carrying out the comprehensive field exploration of a target region, collecting the landform, building layout and vegetation coverage data, analyzing the influence of each factor on the microclimate formation, and carrying out the calculation of the microclimate; according to the method, a partition division basis is determined according to the difference between airflow and heat caused by topographic relief, the influence of a building on sunlight and ventilation and local microclimate characteristics of vegetation construction, and a linkage model comprehensively considering the relationship among a microclimate partition state, a building adjustment behavior and an energy load is established; the complex relation among microclimate parameter changes, building adjustment action changes and energy load changes is accurately reflected, meanwhile, according to state changes after building adjustment, the energy management system can dynamically optimize an energy configuration scheme, unnecessary energy transmission and conversion links are reduced, and the energy utilization rate is improved. And deep optimization configuration of comprehensive energy of the whole area from generation, transportation to use is realized.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD SONGYANG COUNTY POWER SUPPLY CO +1

Multi-energy system carbon emission accounting method and system based on block chain

The invention discloses a multi-energy system carbon emission accounting method and system based on a block chain, and the method comprises the steps: obtaining multi-energy load data, and designing a multi-energy system frame according to the multi-energy load data; based on a multi-energy system framework, designing an emission model and a physical model of carbon emission of different energy sources on a user side, and obtaining carbon emission data of the different energy sources on the user side; a block chain technology is introduced to verify, consensus and store carbon emission data. According to the invention, the accuracy, real-time performance and transparency of carbon emission accounting are improved; and the credibility of the data is enhanced through the block chain technology. And important contributions are made for promoting global carbon emission reduction and sustainable development targets.
Owner:GUIZHOU POWER GRID CO LTD

Multi-energy-load scene generation method and device based on diffusion model

The invention relates to a multi-energy-load scene generation method and device based on a diffusion model. Multi-energy load data and condition information are input into a time-space and cross-dimension decomposition reconstruction network of a classifier-free condition diffusion architecture; projecting the multi-energy load data into time sequence embedding and cross-dimension feature embedding; coding the condition signal and the diffusion step number together to obtain a condition embedding vector; the reconstruction network comprises a time channel and a feature channel, a global context relationship is captured by an encoder, and condition information is fused based on a condition embedding vector through a decoder; wherein an STAR module is arranged behind the decoder of the feature channel; and integrating the output of the time channel and the output of the feature channel, and then carrying out layer-by-layer denoising to generate a multi-energy-load scene. Compared with the prior art, the method has the advantages that autocorrelation, cross correlation and dislocation correlation among cold, hot and electric loads of the building group and renewable energy output are considered, and high-fidelity scene generation under condition control is realized.
Owner:TONGJI UNIV

Park integrated energy system stochastic planning method and system based on multiple uncertainties

The invention belongs to the technical field of energy system planning, and particularly relates to a park integrated energy system stochastic planning method and system based on multiple uncertainties, and the planning method comprises the steps: building a probability model of a multi-energy load growth rate based on park industrial planning and historical data; utilizing Monte Carlo simulation and K-means clustering to generate a representative load scene tree; establishing an upper and lower boundary prediction model of the energy price and the equipment cost by adopting a quantile regression forest method; constructing a multi-stage collaborative optimization model taking the minimum comprehensive cost expectation as a target, and considering constraint conditions such as power flow, operation, time sequence and space; and carrying out reverse recursion solution by utilizing a dynamic programming algorithm, and outputting an optimal equipment configuration and construction scheme of each stage. According to the method, the problems of load increase unpredictability and energy market price fluctuation risk in different development stages of the park energy system are solved by combining scene analysis, data-driven modeling and a dynamic optimization mechanism.
Owner:NINGBO INST OF DALIAN UNIV OF TECH

Systems and methods for energy crowdsourcing and peer-to-peer energy trading

A crowdsourced energy system includes a plurality of distributed energy resources managed by crowdsourcees of the system, a power network to which the distributed energy resources are connected, and a system operator that manages energy trading transactions and energy delivery within the system, the system operator operating at least one computing device configured to: obtain day-ahead peer-to-peer energy trading transaction requests from crowdsourcees for energy to be delivered from the distributed energy resources, estimate day-ahead energy load and solar forecasts, determine optimal power flow for the delivery of energy, and schedule delivery of energy from the distributed energy resources across the power network based upon the energy trading transaction requests, the estimated forecasts, and the determined optimal power flow.
Owner:SOUTHERN METHODIST UNIVERSITY +1

Comprehensive energy system multi-element load prediction method based on double-layer decomposition and reconstruction and TECNFormer

The invention provides a comprehensive energy system multi-element load prediction method based on double-layer decomposition and reconstruction and TECNFormer, and the method comprises the steps: obtaining standardized input data, meteorological factors and time characteristics, which are obtained through the preprocessing of a historical multi-energy load sequence of a comprehensive energy system, wherein the historical multi-energy load sequence comprises an electric load sequence, a cold load sequence and a heat load sequence; performing double-layer modal decomposition on the standardized input data, and classifying the standardized input data into different types of dynamic components; respectively inputting the dynamic components into a time sequence enhanced convolution module, and extracting multi-scale local features by combining multiple heterogeneous differential convolution operators with causal convolution; taking a TECNFormer composed of a time sequence enhanced convolution module and an improved long sequence prediction network as a unified shared feature extraction layer, combining the improved long sequence prediction network with a bidirectional long-short-term memory network and a sparse attention mechanism to capture long-range dependence and local details, and obtaining joint modeling features; on the basis of a hard shared network architecture, a multi-task branch is arranged at an output end, and electric, cold and heat load prediction results are synchronously output.
Owner:FUZHOU UNIV

IES load-energy price coupling prediction method and system based on mixed attention

The invention relates to the field of integrated energy system management, and discloses an IES load-energy price coupling prediction method and system based on mixed attention, and the method comprises the steps: determining a multi-dimensional management feature through a multi-dimensional management feature extraction unit according to integrated energy management information; wherein the comprehensive energy management information comprises renewable energy output information, multi-energy load information and energy price information in a time sequence; according to the multi-dimensional management features, through a mixed attention unit, determining fusion management features of the multi-dimensional management features under the channel attention weight and the time attention weight; and according to the fusion management features, through a fusion output unit, determining a renewable energy output prediction value, a multi-energy load prediction value and an energy price prediction value. The multi-dimensional management feature extraction unit comprises a multi-column convolutional neural network unit and a long-short term memory network unit. According to the invention, the integrated energy system can be managed and dispatched to plan and operate under the optimal target.
Owner:国网电力科学研究院武汉能效测评有限公司 +1

Distributed energy management system and method for industrial automation

The invention provides a distributed energy management system and method for industrial automation, and relates to the technical field of energy management, and the method comprises the steps: collecting the operation state data of different types of energy in distributed energy from an industrial equipment terminal; local energy state analysis is carried out on the operation feedback instruction by using a parallel chain technology to obtain collaborative allocation boundaries of different energy types, and static scheduling constraints of the distributed energy under each operation condition are constructed; performing energy efficiency anomaly identification on an energy efficiency scheduling strategy during distributed energy scheduling to obtain an interconnection scheduling trend of the distributed energy under source network load storage dynamic coordination, and further determining a correction scheduling hierarchy during graded energy load change; and performing accurate load matching by using the intelligent transformer area fusion terminal to perform quantitative planning on distributed energy operation. According to the invention, dynamic cooperative scheduling can be carried out on the distributed energy system in an industrial automatic operation mode, so that the response speed of energy hierarchical management is improved.
Owner:龙南鼎泰电子科技有限公司

Energy distribution optimization method and device, electronic equipment and storage medium

The invention provides an energy distribution optimization method and device, electronic equipment and a storage medium, and can be applied to the technical field of artificial intelligence. The method comprises the following steps: acquiring energy purchase cost data and energy supply attribute data of an energy supplier in a target scheduling period and energy demand attribute data and energy constraint attribute data associated with each energy load area; the energy purchase cost data, the energy supply attribute data, the energy demand attribute data and the energy constraint attribute data are processed based on an energy distribution prediction model, energy distribution information is obtained, and the energy distribution prediction model comprises a first-stage distribution sub-model constructed based on a multi-objective optimization function and a constraint condition set; and determining a target energy distribution scheme corresponding to the energy load area according to the energy distribution information. Cooperative optimization of key targets of cost, reliability and timeliness is realized in a target scheduling period, and the overall robustness and feasibility of an energy distribution scheme in a complex and uncertain environment are remarkably improved.
Owner:DAWNING CLOUD COMPUTING TECH CO LTD

A method and device for optimizing energy storage configuration in an integrated energy system

The present invention provides a method for optimizing energy storage configuration of an integrated energy system, comprising obtaining and preprocessing multi-energy load data, energy storage device status data, and external environment data of the integrated energy system; using an improved variational mode decomposition method to decompose the preprocessed multi-energy load data to obtain the frequency components of the multi-energy load; constructing a configuration scheme for the energy storage device of the integrated energy system based on the obtained frequency components of the multi-energy load; determining constraints, constructing an energy storage optimization objective function, and combining the preprocessed energy storage device status data and external environment data, using an improved multi-objective particle swarm optimization algorithm to find the optimal solution for the energy storage optimization objective function, and further optimizing the configuration scheme of the energy storage device of the integrated energy system based on the found optimal solution. Implementation of the present invention can effectively cope with the complex coupled fluctuations of multi-energy loads in the integrated energy system, significantly improve the energy supply reliability of the system, and optimize the energy storage configuration effect.
Owner:WENZHOU UNIV

Comprehensive energy management and control method and system, storage medium and electronic equipment

The invention belongs to the technical field of comprehensive energy management, and provides a comprehensive energy management and control method and system, a storage medium and electronic equipment, and the method comprises the steps: generating a power generation prediction power sequence corresponding to a preset time length based on historical power generation data through employing a first prediction algorithm; based on the historical energy consumption data of the plurality of energy consumption devices, using a second prediction algorithm to generate a device prediction load sequence corresponding to a preset duration; constructing a load scheduling algorithm of the adjustable load equipment, and generating a load scheduling model according to the power generation prediction power sequence and the equipment prediction load sequence; constructing a scheduling optimization algorithm of energy supply and energy load, and generating a scheduling optimization model based on the power generation prediction power sequence, the equipment prediction load sequence and the load scheduling model; and based on the load scheduling model and the scheduling optimization model, managing and controlling the energy consumption condition of the energy consumption equipment in a future preset duration range. The flexibility and the accuracy of load scheduling are improved; the solving efficiency is improved, and the precision of an optimization result is ensured.
Owner:CHINA THREE GORGES CORPORATION

Comprehensive energy system reliability evaluation method considering pipeline leakage fault

The invention belongs to the technical field of integrated energy systems, and particularly relates to an integrated energy system reliability evaluation method considering a pipeline leakage fault, which comprises the following steps: S0, constructing an integrated energy system; constructing an optimal dynamic energy flow model of the integrated energy system considering the leakage fault; s1, initializing an integrated energy system; s2, adopting a state duration sampling algorithm to extract all element state time sequence sequences including natural gas network and heat supply network pipelines; combining the sequential sequences of all the elements to obtain a system state transition sequence; s3, for each divided system state transition sequence, determining an energy load reduction amount by adopting an optimal dynamic energy flow model of the integrated energy system considering a leakage fault; recording the load reduction amount and the duration of the load reduction state; s4, carrying out convergence judgment; and if the convergence condition is met, stopping iterative simulation. According to the method, the reliability evaluation precision of the integrated energy system can be improved on the basis of considering the pipeline leakage fault.
Owner:CHONGQING UNIV

Multi-energy load scene construction method for rural energy system

The invention discloses a rural energy system multi-energy load scene construction method, and relates to the field of comprehensive energy, and the method comprises the steps: obtaining a historical multi-energy load time sequence of a rural energy system; according to the historical multi-energy load time sequence, a scene generation model is adopted to generate a multi-energy load scene set in a future time period; the scene generation model is constructed based on a Transform model and a regularization relative loss generative adversarial network, and a cosine annealing algorithm and a hot restart mechanism are adopted to dynamically adjust the learning rate when the scene generation model is trained; and reducing scenes in the multi-energy load scene set by adopting a dynamic time warping distance method and a K-Medoids clustering method to obtain a typical multi-energy load representative scene set. According to the method, on the basis that the generated scene keeps a certain diversity, the historical data evolution law and the coupling characteristic between the source and the load are restored to the maximum extent, and extraction and reduction of the representative scene are achieved.
Owner:NORTH CHINA ELECTRIC POWER UNIV

Comprehensive energy load short-term prediction method, system, equipment and medium

The invention discloses a comprehensive energy load short-term prediction method, system and device and a medium, and the method comprises the steps: screening meteorological factors which affect a load through employing a Pearson correlation coefficient, and determining a meteorological sensitive factor; calculating the similarity between the historical dates and the to-be-predicted dates through a grey correlation analysis algorithm, selecting a plurality of historical dates with the highest similarity, and constructing a similar day training set; carrying out adaptive decomposition on the load sequence by adopting an improved variational mode decomposition algorithm to obtain an intrinsic mode function component set; optimizing core parameters of the support vector machine model through an improved sparrow search algorithm, and predicting each sub-component by using the optimized model to obtain a predicted value of each sub-component; and adding and merging the sub-component prediction values of the same load type according to a time sequence to obtain a comprehensive energy load short-term prediction value. The method effectively improves the precision, stability and adaptability of short-term load prediction of the integrated energy system.
Owner:GUIZHOU POWER GRID CO LTD

Comprehensive energy system optimization scheduling method considering carbon transaction and demand response mechanism

The invention discloses an integrated energy system optimal scheduling method considering a carbon transaction and demand response mechanism, and relates to the field of new energy, comprising the following steps: establishing a demand response mechanism model, and optimizing to obtain an energy load curve after demand response; establishing a carbon transaction model, and bringing the carbon emission cost into the total cost of system operation; establishing an optimal scheduling model of the integrated energy system, taking the operation cost of the integrated energy system as a target function, and considering constraints of power balance, wind power output, energy conversion equipment and energy storage equipment; according to the method, a comprehensive energy system optimal scheduling mechanism considering a carbon transaction and demand response mechanism is established, carbon emission and system operation cost are bound by considering a stepped carbon transaction mechanism, and the optimal scheduling result of the comprehensive energy system is obtained. Therefore, the purpose of controlling carbon emission is achieved.
Owner:SHANGHAI JIAOTONG UNIV +1

Zero-carbon energy storage building comprehensive illumination energy load optimization scheduling method

The invention discloses a zero-carbon energy storage building comprehensive illumination energy load optimization scheduling method, and relates to the technical field of power grid coupling scheduling, and the method comprises the steps: recognizing a reflected light path through a light path random sampling simulation method based on a building photo-thermal environment feature matrix, and constructing a building surface light intensity distribution thermodynamic diagram; according to the building surface light intensity distribution thermodynamic diagram, the deflection angle of the building reflector array is dynamically adjusted, and a building light guide performance parameter set is generated through a dynamic light field efficiency quantification method; according to the building light guide performance parameter set, a hybrid MPPT algorithm is adopted to obtain a photovoltaic operation state data set; building energy hierarchical scheduling is carried out based on the photovoltaic operation state data set, and an energy scheduling instruction set and a cross-domain energy scheduling collaborative log are obtained; according to the method, the photovoltaic operation state data set and the power grid hierarchical framework are fused through the building energy hierarchical scheduling model, cross-space-time collaborative optimization of the illumination energy and the power grid load is realized, and the target of zero-carbon building light-storage-network full-link efficient scheduling is achieved.
Owner:江苏德华杰能建筑科技有限公司

Method for Constructing Optimal Scheduling Model of Integrated Energy System Considering Virtual Thermal Storage

Disclosed is a method for constructing an optimal scheduling model of an integrated energy system considering virtual thermal storage, which relates to the technical field of electric power systems. The method includes: establishing an operation model of an apparatus, a demand response model of an energy load, a charging model of an electric vehicle, and an energy flow model of a heat supply network of the virtual thermal storage in the integrated energy system; processing, according to a second-order cone relaxation method, a direct current power flow model of a power distribution network, and constructing the optimal scheduling model of the integrated energy system by taking minimization of total cost of an energy operator as an objective, thereby coordinately and optimally scheduling a plurality of energy sources.
Owner:GUIZHOU POWER GRID CO LTD