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401 results about "Uncertainty factor" patented technology

Reservoir group scheduling interval multi-objective optimization method under uncertain condition

The invention discloses a reservoir group scheduling interval multi-target optimization method under an uncertain condition, and belongs to the technical field of reservoir optimization scheduling. The method comprises the following steps: firstly, establishing an innovative cascade reservoir group interval multi-target scheduling model; secondly, providing a double-population dynamic coordination interval optimization method for solving the interval multi-target scheduling model, and further obtaining an optimal scheduling scheme of the reservoir group; and finally, outputting an optimal scheduling scheme set of the reservoir group. According to the optimization method, through organic combination of a chaos-order mapping initialization strategy, a dynamic adaptive mutual promotion updating strategy and an elite guidance optimization strategy, optimization is rapidly and efficiently carried out to obtain a group of reliable and accurate scheduling scheme sets considering runoff uncertainty; an effective decision-making technical means for solving the cascade reservoir group optimization multi-target complex engineering problem is provided for a scheduling decision maker, the intelligent level and comprehensive benefits of water resource management are improved, and the capacity of a water resource system for coping with complex environments and uncertain factors is further enhanced.
Owner:HOHAI UNIV

Dynamic model adaptive trajectory tracking control method for deformable unmanned aerial vehicle

The invention discloses a dynamic model adaptive trajectory tracking control method for a deformable unmanned aerial vehicle. The method comprises the following steps: establishing a dynamic model of the deformable unmanned aerial vehicle; a control framework based on the model is constructed, flat mapping is performed according to a given reference trajectory, an expected state feed-forward item is calculated according to a current estimated or measured state, and flight control is realized according to a four-rotor geometric control theory; deformation control is achieved based on feedback control over the angle error of the servo motor; uncertain factors in the grabbing process of the deformable unmanned aerial vehicle are modeled into a residual term formed by external force and corresponding torque, an L1 self-adaptive control algorithm is used for conducting self-adaptive compensation on the external force, an incremental nonlinear dynamic inverse control algorithm is used for conducting compensation on the external torque, and therefore self-adaptive trajectory tracking control is achieved. Flight control is performed based on the deformable unmanned aerial vehicle dynamic model, and external force and torque are observed and compensated in real time, so that the uncertainty problem and the external disturbance influence are effectively solved.
Owner:ZHEJIANG UNIV

System combat ability dynamic game comprehensive evaluation method based on deep learning

The invention discloses a system combat ability dynamic game comprehensive evaluation method based on deep learning, and relates to the technical field of combat ability evaluation.According to the method, key features of time and space in a battlefield environment are dynamically extracted by combining a multi-sensor fusion technology with a time sequence convolutional network and a graph neural network, a situation model is updated in real time, and the dynamic game of the system combat ability is comprehensively evaluated. The optimization process of unmanned cluster marshalling and task allocation is accelerated by utilizing a near-end strategy optimization PPO and transfer learning technology, and adaptive adjustment of a marshalling scheme on complex task requirements is realized by defining a multi-task collaborative efficiency index; in the aspect of strategy optimization, a multi-agent game model driven by deep reinforcement learning is constructed, friend or foe resource allocation, dynamic environment change and uncertainty factors are integrated, an optimal strategy is effectively generated, and low-efficiency schemes are eliminated through combat scene simulation; and meanwhile, through a real-time monitoring and dynamic planning mechanism, emergencies such as target change and emergency task insertion are dealt with, and the task execution continuity and cooperative efficiency are improved.
Owner:CHINESE PEOPLES LIBERATION ARMY 92493 UNIT EXPERIMENTAL TRAINING GENERAL RES INST

Harbor district energy double-layer coordination optimization method for multiple interest subjects

The invention provides a harbor district energy double-layer coordination optimization method oriented to multiple interest subjects. The method comprises the steps of performing fusion processing and data cleaning on real-time operation data, historical operation data and environmental parameter data of a harbor district energy management system; performing multi-scale decomposition and feature importance evaluation by adopting a time sequence decomposition algorithm; probability modeling and multi-scale prediction are carried out on the basis of feature recognition uncertainty factors; constructing an upper-layer government regulation and control model and a lower-layer harbor district-ship east game model, and calculating a balance coefficient; and performing monthly strategy optimization, weekly scheduling optimization and hour-level real-time control based on the balance coefficient. By constructing a complete technical chain of data processing, feature extraction, prediction modeling, game optimization and real-time control, dynamic balance of benefits of the government, the harbor district and the ship eastern is realized, and the operation efficiency and the control precision of the harbor district energy system are remarkably improved.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD CHANGZHOU BRANCH +1

Harbor district accident risk visualization analysis method based on network topology structure

The invention discloses a harbor district accident risk visualization analysis method based on a network topology structure, and the method comprises the steps: taking a key facility and an important region as network nodes in a harbor district, determining a connection relation to obtain a network topology structure, analyzing historical cases to obtain a determined risk factor set, obtaining an uncertain factor set through edge calculation, and carrying out the calculation of the uncertain factor set. The method comprises the following steps: constructing an accident tree to carry out quantitative evaluation on network nodes and connection risks, constructing a risk evolution model, extracting an accident cause chain and calculating a risk influence range, visualizing a network topology structure, carrying out color mapping on the accident cause chain and the risk influence range, and then adding the accident cause chain and the risk influence range to obtain a three-dimensional topology view. According to the method, the network topology structure visualization analysis of the accident risk of the harbor district can be realized, the risk is comprehensively evaluated, the subsequent management decision of the harbor district is optimized, and meanwhile, the method has relatively good interpretability.
Owner:CHINA WATERBORNE TRANSPORT RES INST

Production safety accident emergency disposal scheme intelligent generation method and system

The invention discloses a production safety accident emergency disposal scheme intelligent generation method and system, and the method comprises the steps: obtaining the spatial-temporal characteristics of historical accident cases, calculating the correlation degree, building an accident prediction network based on the correlation degree, simulating uncertain factors, calculating the similarity between a current accident and the historical cases, determining the prior probability, and carrying out the accident development reasoning. The method comprises the steps of tracing accident hazard degrees of different production links, obtaining an cause chain, generating an emergency resource allocation strategy set by utilizing Markov decision, constructing target function optimization, obtaining an emergency disposal scheme, monitoring production process, equipment state and personnel configuration changes in real time, and dynamically adjusting the emergency disposal scheme to adapt to the changes. According to the method, the historical data, the graph neural network and the Markov decision are combined, accident prediction and emergency resource intelligent allocation are realized, the method can adapt to the change of a production environment in real time, the disposal efficiency and safety are improved, and meanwhile, the method has relatively good interpretability.
Owner:CHINA NAT INST OF STANDARDIZATION

Mechanical arm tail end variable load dynamics self-diagnosis and compensation method in quick change mode

The invention relates to a mechanical arm tail end variable load dynamics self-diagnosis and compensation method in a quick change form. The mechanical arm tail end variable load dynamics self-diagnosis and compensation method is technically characterized in that a dynamics model is established based on iterative least square online identification; load parameter identification under variable working conditions is carried out based on Jacobian matrix mapping; establishing a hybrid dynamic model including connecting rod rigid body dynamics, connecting rod error compensation dynamics and load dynamics; establishing a variable load dynamical model; when the load at the tail end of the mechanical arm is changed, robot joints are controlled by updating parameters in the hybrid dynamic model; on-line identification and compensation are carried out by collecting sensor data in real time. The method can effectively improve the accuracy and robustness of dynamic representation of the robot when facing various uncertain factors such as connecting rod deformation, variable load and measurement noise, improves the safety and reliability of physical man-machine interaction of the robot, and can be widely applied to the fields of industrial automation, medical operation assistance and rescue robots.
Owner:HEBEI UNIV OF TECH

Intelligent scheduling method for collaborative manufacturing of tunnel boring machines

The invention belongs to the field of intelligent manufacturing, and particularly relates to an intelligent scheduling method for collaborative manufacturing of tunnel boring machines, in the method, multi-source heterogeneous data including design data, process data, production data, material data and the like are acquired, and a rich data basis is provided for intelligent scheduling. The data fusion method based on the ontology is adopted, and the problems of semantic heterogeneity and structural heterogeneity of multi-source heterogeneous data are effectively solved. By constructing the tunnel boring machine manufacturing field ontology model, semantic association and sharing of data from different sources are realized, and the availability and understandability of the data are improved. An algorithm combining mixed integer programming and deep reinforcement learning is provided for intelligent scheduling of tunnel boring machine collaborative manufacturing. A robust optimization method is introduced to enhance the robustness of the scheduling scheme, and the influence of uncertain factors such as raw material supply and equipment maintenance in the manufacturing process of the tunnel boring machine is considered.
Owner:STATE KEY LAB OF SHIELD & TUNNELING TECH

Multi-energy micro-grid cooperative regulation and control system and method based on cross-layer knowledge injection and federated distillation

The invention belongs to the technical field of multi-energy micro-grid cooperative regulation and control. The invention discloses a multi-energy micro-grid coordinated regulation and control system based on cross-layer knowledge injection and federated distillation. The system is characterized by comprising a cross-layer knowledge injection network; a federal knowledge distillation module; and the uncertainty map regulation and control module is used for constructing an MEMG uncertainty association map, learning the influence weight of each uncertainty factor on a regulation and control decision through a map attention mechanism, and realizing a dynamic risk avoidance strategy. The invention discloses a multi-energy micro-grid cooperative regulation and control method based on cross-layer knowledge injection and federated distillation. The method is characterized by comprising the following steps: step 1, MEMG topology knowledge coding; 2, cross-layer knowledge injection training is carried out; step 3, federal knowledge distillation optimization; and step 4, performing uncertainty map regulation and control. According to the system and the method, the precision, the robustness and the data privacy protection capability of MEMG regulation and control are improved, and the system and the method are suitable for efficient collaborative optimization of the park-level multi-energy microgrid.
Owner:YICHANG POWER SUPPLY CO OF STATE GRID HUBEI ELECTRIC POWER CO LTD +2

Agricultural data dynamic sensing scheduling method based on Internet of Things

The invention relates to the technical field of agricultural data dynamic perception, in particular to an agricultural data dynamic perception scheduling method based on the Internet of Things, and the method is realized based on an Internet of Things sensor, an edge computing platform and an edge server. Comprising the following steps: deploying Internet of Things sensors including a meteorological station, a soil humidity monitor and an unmanned aerial vehicle inspection system, and deploying a real-time data processing module on an edge server through an edge computing platform. According to the method, a dynamic cost-benefit analysis model is constructed, various factors and dynamic changes in agricultural production are comprehensively considered, a multi-objective optimization algorithm and a dynamic planning technology are applied, optimization of resource allocation and maximization of long-term benefits are achieved, in addition, uncertainty factors are processed by introducing a fuzzy mathematical method, and the method is suitable for large-scale popularization and application. The method improves the robustness and reliability of analysis, and solves the problems of lack of dynamics, incomplete consideration factors and limited optimization means in a traditional scheme.
Owner:XIJING UNIV

Wind and light storage capacity distribution robust optimization configuration method, device, equipment and medium

The invention relates to the technical field of power grid side large-scale wind and light and energy storage configuration, in particular to a wind and light storage capacity distribution robust optimization configuration method, device and equipment and a medium. Establishing a power grid side wind and light energy storage optimization configuration model considering inertia constraint; uncertain factors in the optimal configuration model are considered, and a probability distribution fuzzy set based on a mixed norm is constructed; establishing a two-stage distribution robust optimization configuration model based on data driving; converting the two-stage distribution robust optimization configuration model into a mixed integer linear programming model by using a linearization technology; and solving the mixed integer linear programming model by using a column and number generation algorithm to obtain an optimal configuration and operation scheme of each device. According to the method, the economical efficiency and load fluctuation can be balanced, and the problems of frequency instability and the like of a large-scale wind and light energy grid-connected power grid are avoided by considering inertia constraint.
Owner:HOHAI UNIV

Latticed column perpendicularity control method based on multi-source fusion and predictive compensation

The invention provides a latticed column perpendicularity control method based on multi-source fusion and predictive compensation, and belongs to the technical field of perpendicularity control, a novel anti-interference sensor is combined with multi-point distributed installation and advanced data transmission and processing technologies, perpendicularity data of a latticed column can be accurately obtained in real time, and the perpendicularity control accuracy of the latticed column is improved. A reliable three-dimensional deviation cloud picture is generated; according to the intelligent hydraulic jack set control system based on real-time data feedback, the adjustment time is greatly shortened, the problem that the insertion deviation exceeds the limit due to adjustment lag is solved, the perpendicularity control precision of the latticed column is improved, and it is ensured that the insertion deviation of the latticed column is controlled within a small range; through comprehensive optimization of the construction process, including drilling pretreatment, equipment debugging and calibration, lowering process monitoring, concrete pouring process monitoring and the like, the stability and reliability of the whole latticed column perpendicularity control process are further improved, uncertain factors in the construction process are reduced, and the engineering quality and the construction efficiency are improved.
Owner:CCCC THIRD HARBOR ENGINEERING CO LTD

Multi-energy load prediction method considering multiple uncertainties

The invention discloses a multi-energy load prediction method considering multiple uncertainties and suitable for an integrated energy system, and belongs to the technical field of energy load prediction. According to the method, a multi-task learning framework is used for multi-load prediction, the complex coupling relation among electricity, heat and hydrogen loads is captured, and the prediction precision of each prediction task is enhanced; considering the influence of uncertainty factors on prediction, specifically including input uncertainty and model parameter uncertainty, respectively performing uncertainty modeling on the input uncertainty and the model parameter uncertainty, and quantifying the uncertainty risk of the uncertainty factors on load prediction; and in combination with an attention mechanism, the model is helped to pay attention to important time step feature information, and unnecessary information interference is reduced. According to the multi-load prediction method provided by the invention, the coupling relationship between the loads can be captured under the condition that uncertainty factors are considered, and accurate prediction of the multi-energy loads is realized.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Virtual power plant optimization scheduling method considering uncertain factors

The invention relates to a virtual power plant optimal scheduling method considering uncertain factors. The method comprises the following steps: step 1, generating a wind and light uncertainty scene by adopting a Monte Carlo simulation method based on Latin hypercube sampling; step 2, reducing the wind and light uncertainty scene generated by simulation in the step 1; 3, constructing a virtual power plant optimization scheduling model considering uncertainty factors on the basis of the wind and light uncertainty scene cut down in the step 2; and step 4, based on the virtual power plant optimization scheduling model considering the uncertainty factors established in the step 3, designing a plurality of solving scenes of the virtual power plant optimization scheduling model considering the uncertainty factors, performing solving, and finally selecting an optimal scheme of virtual power plant optimization scheduling. According to the method, the optimal scheduling of the operation of the virtual power plant can be realized, the stability of power supply is ensured, and the problem of output uncertainty of different resources is solved.
Owner:NORTH CHINA ELECTRIC POWER UNIV

Automatic driving decision-making method and system with dynamic risk perception and attention focusing functions and vehicle

The invention belongs to the technical field of automatic driving, and particularly relates to an automatic driving decision-making method and system with dynamic risk perception and attention focusing and a vehicle, and the method comprises the steps: predicting the track of a surrounding vehicle in real time through a multi-feature Gaussian weighted particle filtering algorithm, and improving the prediction precision through combining a vehicle kinematic model and resampling optimization; constructing a comprehensive evaluation model fusing transverse and longitudinal risks, and dynamically quantifying the collision risk of the vehicle and surrounding vehicles; and inputting the risk value as a key state feature into a double-depth Q network based on attention mechanism enhancement, focusing key information through a feature attention distribution mechanism, and generating an optimal driving decision in combination with a multi-target reward function. Compared with the prior art, the method solves the problems of insufficient quantification of uncertainty factors, incomplete risk assessment and low decision-making efficiency of automatic driving in a complex dynamic environment, and significantly improves the risk perception capability and decision-making safety of the automatic driving vehicle.
Owner:ANHUI UNIV

Multi-agent-based virtual power plant dispatching instruction rapid decomposition method

The invention belongs to the technical field of virtual power plant instruction decomposition, and particularly relates to a virtual power plant dispatching instruction rapid decomposition method based on multiple agents. According to the method, the change and demand fluctuation of the power system can be more flexibly coped with, the compensation value is calculated based on the historical data and the current state of the intelligent agent, reasonable distribution and optimal use of system resources, loads and power are ensured, the overall operation efficiency of the virtual power plant is improved, and through the setting of the instruction decomposition level, the operation efficiency is improved. Task allocation of the intelligent agents can be dynamically adjusted according to actual conditions, overload of a single intelligent agent is avoided, execution efficiency of scheduling instructions is improved, high-energy-consumption tasks can be preferentially arranged when power is low by combining current power data, or generating capacity and operation cost are reduced when the power is high, economic benefits are improved, and the method is suitable for large-scale popularization and application. Compensation value calculation and decision making are carried out by utilizing historical data of the intelligent agent, so that the scientificity and accuracy of dispatching instruction decomposition are improved, and the influence of uncertain factors in the dispatching process is reduced.
Owner:GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD

Flexible demand modeling method based on probability box

The invention relates to a flexibility demand modeling method based on a probability box, and belongs to the field of flexibility demands of power systems. According to the method, a probability box theory P-Box is introduced to describe random uncertainty and cognitive uncertainty of wind power output, photovoltaic output and load demand prediction errors; introducing a conditional value-at-risk theory CVaR to a confidence interval boundary of the probability box, and intercepting an uncertainty factor boundary; and establishing a source-load double-side flexibility quantification model based on a prediction error of intercepting an uncertain factor boundary.
Owner:STATE GRID FUJIAN ELECTRIC POWER CO LTD

Feed production control method and system based on deep learning

The invention relates to the technical field of feed production, and discloses a feed production control method and system based on deep learning. Aiming at the problems of low production efficiency and unstable product quality caused by uncertain factors such as raw material quality fluctuation, equipment state change and the like which are difficult to deal with by a traditional feed production method, an improved CrossFormer deep learning model is adopted, and feed production process data are acquired and preprocessed in real time; and inputting the preprocessed data into a model to carry out validity evaluation on the current production strategy, and giving an adjustment instruction. And automatically adjusting a feed production strategy according to an output result of the model and an adjustment instruction, and recording all implemented adjustment measures, production data comparison before and after adjustment and equipment monitoring information to form a production optimization log. According to the method, the intelligent level of feed production is remarkably improved, the production cost is reduced, and the product quality and the market competitiveness are improved.
Owner:ANHUI FUGUI FEED CO LTD

Historical data driving method and system for power load prediction

The invention discloses a historical data driving method and system for power load prediction, and relates to the technical field of load prediction. Compared with a previous load prediction model, the problem that a common single power load prediction model is difficult to adapt to power load prediction requirements of different time lengths in different power utilization areas is solved; through a historical data driving method, short-term and long-term power load prediction of a region or a grid can be effectively carried out, and a short-term load prediction model further optimizes an LSTM network which carries out parameter optimization based on an improved particle swarm algorithm through an A3C algorithm, so that the overall prediction performance can be improved. And important support is provided for operation and planning of a power system. The short-term load prediction model is further adjusted to be a long-term load prediction model based on an improved Monte Carlo simulation method, various possible scenes and uncertainty factors can be considered, the prediction performance of long-term load prediction is improved, and important data support is provided for efficient operation and optimization of a power system.
Owner:ANHUI JIYUAN SOFTWARE CO LTD

Networking type novel energy storage multi-objective optimization coordinated scheduling method

The invention discloses a network construction type novel energy storage multi-objective optimization coordinated scheduling method, which comprises the following steps: S1, energy storage classification and data acquisition: (1) according to application scene function requirements, dividing energy storage types according to rated continuous discharge duration; (2) data acquisition; s2, calling an energy storage scene and combining with weight parameter setting to construct a multi-objective optimization model: (1) establishing the multi-objective optimization model with the purposes of minimizing the system operation cost, maximizing the energy storage utilization rate and improving the power grid stability; (2) setting constraint conditions; s3, a dynamic optimization algorithm: (1) adopting an improved multi-target particle swarm algorithm or a genetic algorithm, introducing an adaptive weight mechanism, and combining real-time data to dynamically adjust the weight of a target function; (2) aiming at uncertainty factors, embedding a scene analysis method or a robust optimization strategy, and judging whether the comprehensive efficiency is optimal or not; and S4, scheduling execution and monitoring.
Owner:STATE GRID GANSU ELECTRIC POWER CO LANZHOU POWER SUPPLY CO

Sugarcane squeezing process optimization method and device based on interval multi-objective optimization

The invention discloses a sugarcane squeezing process optimization method based on interval multi-objective optimization, and belongs to the technical field of sugarcane squeezing process optimization, and the method comprises the steps: obtaining production data of a sugarcane squeezing process, carrying out the preprocessing of the production data, and screening out variables which are highly correlated with the power consumption and the extraction rate; taking the midpoint and the deviation of the power consumption and the extraction rate as a multi-objective optimization problem associated with a variable to represent a mean value and an uncertainty change interval of two squeezing indexes of the power consumption and the extraction rate; solving the multi-objective optimization problem by using an interval multi-objective optimization algorithm to obtain a Pareto solution set; and performing multi-attribute multi-target decision by using an approximate ideal solution sorting method based on entropy weight to obtain an optimal optimization scheme. According to the method, the extraction rate is increased, the energy consumption is reduced, meanwhile, the two indexes of the squeezing extraction rate and the production energy consumption are insensitive to the change of uncertain variables, and the problem that the index fluctuation range is large due to uncertain factors in the sugarcane squeezing process is solved.
Owner:GUANGXI UNIVERSITY OF TECHNOLOGY

Urban multi-water-source joint scheduling method based on discrete scene set and robustness decision

The invention discloses an urban multi-water-source joint scheduling method based on a discrete scene set and a robustness decision, and the method comprises the steps: researching the characteristics of multiple uncertainty factors of urban multi-source water supply, and generating a multiple uncertainty scheduling scene set through a Latin hypercube sampling method; constructing a water supply city regulation and storage reservoir and external water source joint scheduling model and a water receiving unit internal optimization scheduling model; and constructing a robustness decision-making-based urban annual multi-water-source combined scheduling model. A multi-uncertainty scene set and a robustness measurement method based on an expected benefit index are utilized, the minimization of the annual water level fluctuation risk and the urban water shortage risk of a regulation and storage reservoir is taken as a scheduling target, an urban multi-water-source combined scheduling model based on a robustness decision is constructed, the rationality and the applicability of the robustness scheduling model are verified, and the urban multi-water-source combined scheduling model is established. And analyzing a robust decision scheduling result under an uncertain condition.
Owner:宁夏回族自治区水旱灾害防御中心

Trans-basin water transfer project adaptability regulation and control method under uncertainty

The invention discloses a cross-basin water transfer project adaptability regulation and control method under uncertainty, and belongs to the technical field of reservoir regulation and control. Comprising the following steps: step 1, generating multiple uncertain scenes as an input side of an interbasin water transfer project simulation scheduling model; step 2, constructing an interbasin water transfer project simulation scheduling model, and analyzing project operation conditions in an uncertain scene; 3, constructing an adaptive scheduling framework based on a hedging principle, and performing multi-objective optimization by using an NSGA-II algorithm; according to the method, an AOMU model for coordinating water transfer, power generation and energy consumption targets under adverse conditions is established, the model can be used in a cross-basin water transfer project under uncertainty, the toughness of the project to cope with the uncertainty and adverse water transfer conditions can be effectively improved, and economic benefits are improved while water transfer is guaranteed; the problem that supply and demand imbalance is easily caused by improper scheduling of traditional uncertainty factors is solved.
Owner:NORTHWEST A & F UNIV

Mechanical arm trajectory tracking control double-Q reinforcement learning method with disturbance

The invention relates to a disturbance-containing mechanical arm trajectory tracking control double-Q reinforcement learning method, and belongs to the technical field of mechanical arm intelligent control. According to the method, a double-Q reinforcement learning method is adopted to solve the problem of trajectory tracking control of the interfered mechanical arm. An interference observer is designed to estimate and counteract the influence of external interference and model inaccuracy, and the control precision and interference suppression capability of the mechanical arm system are improved; a tracking controller based on a double-Q reinforcement learning method is designed, and the control cost is kept while the dynamic and steady-state performance of the system is improved by utilizing the excellent performance of a double-Q learning algorithm; in addition, the problem that the Q value is too high in a traditional Q learning method is solved through the double-Q reinforcement learning method. According to the method, the advantages of the double-Q reinforcement learning method are effectively utilized, under the condition that the system contains disturbance and uncertain factors, the fast tracking performance of the mechanical arm system on the expected trajectory is achieved, and the good steady-state performance is achieved.
Owner:QUFU NORMAL UNIV

Radiation shielding multi-objective optimization design method based on Bayesian neural network

The invention provides a radiation shielding multi-objective optimization design method based on a Bayesian neural network, and the method is characterized in that the method comprises the following steps: S1, obtaining sample data; s2, network construction and evaluation; s3, robust design optimization is carried out; according to the method, cognitive uncertainty in the modeling process of an agent model is quantified by using a loss function based on variational inference and KL divergence derivation, a nuclear radiation shielding calculation agent model considering uncertainty factors is obtained, and radiation shielding calculation is performed on an objective function in multi-objective optimization design through the constructed agent model. And a Pareto optimal solution set with certain robustness is obtained in combination with robust optimization design. According to the method, prior distribution is added to the weights of a neural network model, then the change conditions of the weights when data are given are obtained to measure the cognitive uncertainty in radiation shielding simulation, and the robustness of an optimization result is improved.
Owner:HUNAN UNIV +1

Unmanned aerial vehicle adaptive path planning method fusing environmental uncertainty

The invention provides an unmanned aerial vehicle adaptive path planning method and system fused with environment uncertainty, and the method comprises the steps: obtaining surrounding environment data based on an environment perception module, generating a local grid map and a dynamic obstacle list, inputting the local grid map and the dynamic obstacle list into an environment uncertainty evaluation module, obtaining an uncertainty factor, and carrying out the calculation of the uncertainty factor; and performing path planning through a global path planner and a local path planner based on the uncertainty factor, and adjusting the weight of a global path and the weight of a local path according to the environment uncertainty factor through a dynamic weight fusion device to obtain a final track. According to the method, the flexibility and the real-time performance of unmanned aerial vehicle path planning are effectively improved, the obstacle avoidance capability and the flight stability of the unmanned aerial vehicle in a complex environment are enhanced, and the flight efficiency is improved.
Owner:杭州兵智科技有限公司

Active power distribution network cooperative operation optimization method considering'source-load-storage 'coordination

The invention discloses a source-load-storage coordinated active power distribution network cooperative operation optimization method, and belongs to the technical field of active power distribution network optimization. Comprising the following steps: partitioning the power distribution network by using an electrical coupling degree and a power matching degree to obtain an optimal power distribution network partitioning result; taking the minimum comprehensive operation cost of the active power distribution network as a target function, introducing a demand response constraint, and constructing an active power distribution network partition collaborative optimization model; and constructing a regional agent for each regional partition based on the optimal power distribution network partition result, modeling an objective function into a distributed partial observable Markov decision process, and performing iterative optimization on the active power distribution network partition collaborative optimization model through the regional agent to obtain the real-time electricity price in each region. Distributed management of flexible resources of each region can be realized, and the problem that the operation regulation and control difficulty is increased due to multivariate uncertainty factors and ever-increasing structure complexity in the existing ADN is solved.
Owner:DEZHOU POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER

Shared energy storage configuration optimization method and system for wind farm cluster

Disclosed in the present invention are a shared energy storage configuration optimization method and system for a wind farm cluster. The method comprises: constructing a shared energy storage double-layer programming model; on the basis of the output of a wind farm cluster, an electricity price in an electric energy market and a compensation price in a frequency-modulation auxiliary service market, obtaining multiple uncertainty sets, using an improved K-means clustering method to perform joint clustering on the multiple uncertainty sets so as to obtain a typical scenario, and on the basis of the annual occurrence frequency of the typical scenario, calculating a typical scenario probability; and using a distributionally robust optimization method to model the multiple uncertainty sets on a short-time scale so as to obtain an extreme uncertainty scenario, using the typical scenario probability and the extreme uncertainty scenario to update the shared energy storage double-layer programming model so as to obtain an updated shared energy storage double-layer programming model, and using a particle swarm algorithm to perform solving so as to obtain a configuration result. By means of the method, shared energy storage configuration optimization is performed by means of taking various uncertainty factors into consideration, thereby improving the accuracy of shared energy storage configuration optimization.
Owner:GUANGDONG POWER GRID CO LTD

Hierarchical energy management method for hybrid electric vehicle based on Tube MPC

The invention discloses a Tube MPC-based hybrid electric vehicle layered energy management method. The method comprises the following steps of performing longitudinal dynamic modeling on a hybrid electric vehicle, determining a vehicle demand power formula, constructing an evaluation function of equivalent fuel consumption, and constructing an output power model of a vehicle engine and a battery; carrying out uncertainty analysis on the energy management system, determining uncertain parameters in the vehicle model, quantifying the uncertainty of the uncertain parameters based on probability distribution, and constructing an uncertainty set of the uncertain parameters; on the basis of a dynamic programming algorithm, under the global working condition, the minimum amount of equivalent fuel consumption serves as a target function, an optimal control sequence of the engine is output, and an SOC reference trajectory is generated; and performing tracking solution on the control variables and the state variables in the uncertainty set by applying a Tube model predictive control (Tube MPC) method to obtain an optimal control sequence under uncertain factors, and outputting a first control variable.
Owner:GUANGXI UNIV

Power plant unit maintenance optimization method considering multiple uncertain factors of power market

The invention relates to a power plant unit maintenance optimization method considering multiple uncertain factors of a power market, and belongs to the technical field of power system operation management. The method comprises the following steps: firstly, obtaining spot market electricity price and new energy output data in each time period of a historical year in a power plant; a random scene set considering spot market electricity price and new energy output is established based on historical data, time-varying features are described through data segmentation, state space division and a non-uniform Markov model, and the random scene set is generated by using a Monte Carlo method; and finally, taking maximization of the total expected income of the power plant as an objective function, constructing an optimization model in combination with preset constraint conditions of the unit, inputting the random scene set into the optimization model for solving, and outputting an optimized unit operation and maintenance strategy which comprises maintenance plans of wind power, photovoltaic and thermal power units and corresponding output plans. Multiple uncertain factors in the power market can be effectively handled, and the operation and maintenance benefits of a power plant are improved.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD +1