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214 results about "Random optimization" patented technology

Random optimization (RO) is a family of numerical optimization methods that do not require the gradient of the problem to be optimized and RO can hence be used on functions that are not continuous or differentiable. Such optimization methods are also known as direct-search, derivative-free, or black-box methods.

Intelligent control method and system for flour workshop

The invention relates to the technical field of flour processing, and discloses an intelligent control method and system for a flour workshop, and the method comprises the following steps: collecting raw material characteristic data and equipment operation state data in real time through a sensor, calculating the state variable of the current system according to the collected data, and calculating the state variable of the current system according to the current state variable. Performing rolling optimization on a control strategy in a future time domain, dynamically adjusting grinding parameters according to a rolling optimization result, correcting a prediction model according to a data deviation between real-time acquired data and nonlinear model prediction data, and calculating an optimal control parameter combination based on a stochastic optimization theory; the system comprises a sensing module, a control module, an execution module, a feedback correction module and a random optimization module. By adopting the technical scheme that a high-precision sensor is combined with intelligent control, comprehensive automation and accurate control of the flour production process are achieved. The stability and consistency of flour quality are remarkably improved, and quality fluctuation is avoided.
Owner:ZHENGZHOU GOLDENGRAIN EQUIP ENG CO LTD

New energy medium and long term stochastic programming method and system coupled with electro-hydrogen water regulation power supply

The invention discloses a new energy medium and long term stochastic programming method and system coupled with an electro-hydrogen water regulation power supply, and the method comprises the steps: building a power supply planning model with the minimum planning operation cost as an optimization target; bringing the new energy power supply and energy storage adjusting equipment operation model and the new energy consumption rate upper and lower limit constraint expression into a power supply planning model; in consideration of the randomness of fluctuation at two sides of a source and a load in power supply planning, based on the obtained power system operation scene set S and the power supply planning model, dividing into an investment decision-making layer and an operation simulation layer according to a time period influenced by a decision, and constructing a power supply planning two-stage stochastic optimization model based on a typical scene; and solving the power supply planning two-stage stochastic optimization model under a medium and long term planning framework, and determining the investment planning installed capacity of the adjusting power supply and the new energy in the planning level year. According to the invention, economy of medium and long term planning and power supply capacity configuration of new energy can be improved, and reasonable consumption and flexible adjustment of new energy electric power are promoted.
Owner:NORTH CHINA BRANCH OF STATE GRID CORPORATION OF CHINA +1

Low-altitude aircraft power supply facility cooperative control method, system, equipment and medium

The invention relates to the technical field of data processing, and particularly provides a low-altitude aircraft power supply facility cooperative control method, system and device and a medium, and the method comprises the steps: predicting the renewable energy power generation power of a power supply facility and the charging load power of a low-altitude aircraft based on obtained multi-source information, and generating a prediction scene set representing uncertainty; based on the prediction scene set, through a multi-time scale optimization strategy, solving a scheduling model with optimal operation cost as a target, and successively obtaining a pre-scheduling plan of a day-ahead stage and a real-time control instruction of an intra-day stage; the multi-time scale optimization strategy comprises random optimization based on a scene and feedback optimization based on a rolling time domain; according to the real-time control instruction, power distribution is conducted on the hybrid energy storage system, and a power type energy storage unit preferentially responds to the transient power requirement for charging of the low-altitude aircraft. The comprehensive operation cost is effectively reduced, and particularly, the service life of equipment is prolonged through quantitative energy storage degradation.
Owner:SHANDONG ZHENGCHEN TECH CO LTD

Optimization method and system for aviation equipment storage and medium

The invention discloses an optimization method and system for aviation equipment storage and a medium, and the method comprises the steps: collecting multi-dimensional dynamic data, carrying out the fusion cleaning and structural feature extraction, and generating a high-dimensional feature set; outputting a dynamic demand prediction value and uncertainty measurement by using a hybrid intelligent prediction model fusing time sequence prediction and ensemble learning; calculating an optimal inventory control parameter through a stochastic optimization model in combination with the aviation material key grade and the stockout loss cost; and generating an inventory operation instruction according to the optimal inventory control parameter and the real-time inventory state, and outputting a strategy report with confidence evaluation and key influence factor analysis. According to the method, multi-dimensional accurate prediction of the aerial material demand and dynamic optimization of the inventory strategy are realized, the inventory control precision and the resource utilization efficiency are remarkably improved, the stockout risk and the overstocked cost are effectively reduced, and the reliability and the economical efficiency of aviation equipment guarantee are enhanced.
Owner:CHINA AVIATION EQUIPMENT CO LTD

Joint optimization method for task unloading and power control in satellite edge computing network

The invention discloses a joint optimization method for task unloading and power control in a satellite edge computing network, and provides a time delay-energy consumption balance optimization framework oriented to dynamic task arrival aiming at the long-term random optimization problem in satellite edge computing task unloading. Through fusion of Lyapunov optimization and a virtual queue mechanism, the long-term delay constraint is successfully converted into a time slot level optimization target which can be executed online, and a self-adaptive decision process is realized. And aiming at the generated non-convex optimization problem, constructing a robust solution algorithm under a PDD framework, and integrating secondary transformation and an SCA technology to realize efficient solution. Simulation experiments show that the method can obviously reduce the energy consumption in a random task arrival scene, and strictly meets the delay constraint requirement at the same time.
Owner:SOUTHWEST UNIV

Unit rotation and mutual coupling considered sparse linear array beam forming method and system

The invention relates to the technical field of array antennas, in particular to a sparse linear array beam forming method and system with unit rotation and mutual coupling considered. Array elements are obtained, Euler angle derivation is carried out on rotation of the array elements around the z axis, and a radiation electric field after rotation is obtained; setting a beam forming target according to the electric field of the radiation field; according to a beam forming target, optimizing the position, the rotation angle and the excitation phase of an array element by adopting a random optimization algorithm, and generating an initial beam scheme; an active directional diagram is extracted from the initial beam scheme according to full-wave simulation, the active directional diagram is combined with a CAL-SAPSO algorithm to optimize the array element position, the rotation angle and the excitation phase, and a final array element directional diagram is generated; according to the invention, by introducing array element rotation and considering a mutual coupling effect, efficient beamforming of the sparse wiring array is realized, the radiation characteristic of the antenna array can be adjusted more finely, the peak side lobe level and the cross polarization level are effectively reduced, and the overall performance of the system is improved.
Owner:XIDIAN UNIV

Day-ahead optimization scheduling method considering system inertia supply out-of-limit risk

The invention discloses a day-ahead optimal scheduling method considering a system inertia supply out-of-limit risk, and belongs to the technical field of day-ahead scheduling. Comprising the following steps: calculating to obtain a system inertia demand lower limit according to system frequency change rate constraint and frequency lowest point constraint, and calculating to obtain a system inertia demand upper limit by making a new energy station and an energy storage power station equivalent to a thermal power generating unit when the system is in the maximum load; the method comprises the following steps: considering inertia supporting capacities of a conventional unit, a wind power plant station and network construction energy storage, and constructing a risk driving index considering insufficient maximum inertia supply and excess minimum inertia supply of a system; constructing a two-stage stochastic optimization model according to the objective function and the constraint condition of the day-ahead stage and the objective function and the constraint condition of the real-time stage; and solving the two-stage stochastic optimization model, and verifying the economical efficiency of the scheduling scheme and the supply capability of the system inertia. According to the invention, the system is guaranteed to have sufficient inertia supply capability in the day-ahead stage, and the safety and economy of the system are guaranteed.
Owner:NORTH CHINA ELECTRIC POWER UNIV +3

Random optimization-based flexible climbing joint clearing method, system and related device

The invention discloses a flexible climbing joint clearing method and system based on stochastic optimization, and a related device, and belongs to the technical field of power system optimization scheduling, and the method comprises the steps: obtaining clearing boundary data, and completing verification; based on the historical data of the new energy predicted power and the load power predicted value, generating a random scene considering the wind and light uncertainty, and performing scene reduction; and inputting the verified clearing boundary data and the reduced random scene considering the wind and light uncertainty into a pre-constructed flexible climbing and electric energy, standby and frequency modulation combined clearing optimization model, and solving to obtain a clearing result of flexible climbing, electric energy, standby and frequency modulation. According to the method, coupling mutual exclusion relation characteristics of electric energy, flexible climbing, standby and frequency modulation in the aspects of unit capacity, unit climbing capacity and the like are combined, optimal configuration of resources is achieved, uncertain factors of a complete link of power production scheduling are represented in a refined mode, and robustness of clearing results of electric energy, flexible climbing, standby and frequency modulation can be improved to a great extent.
Owner:CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +4

Self-adaptive photovoltaic energy storage comprehensive optimization method and system

The invention discloses a self-adaptive photovoltaic energy storage comprehensive optimization method and system, and belongs to the technical field of photovoltaic energy storage optimization control. According to the method, a system operation model is established based on historical and real-time operation data of a photovoltaic unit, an energy storage unit and a load side, a hybrid robust-stochastic optimization framework is introduced, a collaborative optimization model with energy balance and system stability as targets is constructed, and an initial control parameter set is solved; in the system operation process, a power fluctuation mode and energy storage response characteristics are identified through a multi-layer agent algorithm, and a dynamic energy storage control instruction is generated and corrected; and according to the cross-cycle change trend of the operation performance index, adaptively adjusting the weight and step length of the control parameter, and realizing strategy evolution and dynamic closed-loop optimization. According to the invention, cooperative operation of photovoltaic and energy storage can be realized under complex operation conditions, and the energy utilization rate and the operation stability are improved.
Owner:JIANGSU YILI ELECTRIC CO LTD

Self-discipline cooperative operation optimization method for regional power distribution network containing multiple microgrids

The invention belongs to the technical field of power distribution network operation optimization, and particularly relates to a multi-microgrid-containing regional power distribution network self-discipline collaborative operation optimization method which comprises the following specific steps: S1, data acquisition and preprocessing; s2, establishing a model; s3, a self-discipline cooperative control strategy; s4, solving by an optimization algorithm; and S5, real-time monitoring and adjustment are carried out. And through self-discipline cooperative operation optimization, an information interaction and cooperation mechanism among the micro-grids is constructed, and resource sharing and advantage complementation of the multi-micro-grid system are realized. A distributed collaborative optimization algorithm and a self-discipline control strategy are adopted, and dependence on centralized communication is reduced. The uncertainty of output and load demand of the distributed power supply is fully considered by utilizing technologies such as model predictive control and stochastic optimization. According to the scheme, a plurality of optimization objectives such as economy, environment and reliability are comprehensively considered, and the optimal operation strategy is solved by adopting a multi-objective collaborative optimization algorithm.
Owner:SUQIAN ELECTRIC POWER DESIGN INSTITUTE CO LTD +1

Automatic segmentation method and system based on deep foundation pit point cloud model

The invention discloses an automatic segmentation method and system based on a deep foundation pit point cloud model in the technical field of deep foundation pit modeling, and aims to solve the optimization problem of an existing deep foundation pit modeling technology. The method comprises the following steps: carrying out model simplification on an obtained deep foundation pit point cloud model by adopting a dynamic threshold voxel reduction algorithm to obtain a simplified point cloud model; dividing the underground diaphragm wall and the foundation pit ground for the simplified point cloud model by using a geometric constraint random optimization algorithm to obtain an underground diaphragm wall set and a foundation pit ground set; filtering the underground diaphragm wall and the foundation pit ground in the simplified point cloud model according to the underground diaphragm wall set and the foundation pit ground set to obtain a preliminarily filtered point cloud model; performing support layer division on the preliminarily filtered point cloud model by using a geometric constraint random optimization algorithm to obtain a support layer set; and carrying out independently supported point cloud division on the support layer set by adopting a dynamic radius domain division algorithm to obtain an independently supported point cloud set.
Owner:WUHAN UNIV

9Ni steel process optimization method and device based on artificial intelligence

The invention discloses a 9Ni steel process optimization method based on artificial intelligence, and relates to the technical field of steel production, and the 9Ni steel process optimization method comprises the following steps: collecting multi-source process parameters and optimization target parameters; performing feature processing on the collected data to generate target feature data; constructing a 9Ni steel performance multi-target prediction model based on the target feature data, and training the model until convergence; and constructing a multi-objective optimization function by utilizing the converged 9Ni steel performance multi-objective prediction model, and solving the multi-objective optimization function by adopting a stochastic optimization algorithm under an operation constraint condition and outputting an optimal process parameter combination. According to the method, deep learning modeling, cluster cleaning, feature engineering construction, deep learning and a random optimization strategy are comprehensively applied, a data-driven intelligent process optimization system for the 9Ni steel manufacturing process is formed, the achievement rate of target performance indexes can be remarkably increased, the parameter trial and error period is shortened, and the implementation efficiency of the 9Ni steel manufacturing process is improved. And intelligent adjustment and cost optimization of a process path can be realized.
Owner:NANJING IRON & STEEL CO LTD

Random key optimization for generating sequencing plans

Random key optimization is used to generate sequencing plans. An optimization problem is obtained to generate a sequencing plan. The optimization problem may be described according to nodes that represent decision variables of the optimization problem. A random optimization key technique may be applied to determine a vector of respective values for the nodes. The vector of respective values of the nodes may be decoded according to a sequence planning constraint to generate the sequencing plan and determine a fitness score for the sequencing plan.
Owner:AMAZON TECH INC

Scene-based random optimization method for micro-grid energy and flexibility scheduling

The invention provides a scene-based random optimization method for micro-grid energy and flexibility scheduling, and belongs to the technical field of micro-grid optimization scheduling. The method comprises the following specific steps: minimizing the expected cost of the micro-grid as a target; setting a power balance constraint in the micro-grid according to a relation among photovoltaic power generation capacity, power load power consumption, battery energy storage charging and discharging power and power loss in the micro-grid internal transmission and conversion process in the micro-grid; determining a flexible service constraint of the micro-grid according to the flexible service model and the battery energy storage model; predicting and updating by using a rolling time domain method, modeling uncertainty of the micro-grid by combining scene generation and scene reduction technologies, determining a day-ahead prediction error of the micro-grid, and constructing a random optimization model of energy and flexibility of the micro-grid; based on a flexible intra-day framework, solving a random optimization model of micro-grid energy and flexibility according to a scene at different time stages, and obtaining a flexible scheduling strategy; meanwhile, the stability and efficiency of the micro-grid are considered.
Owner:SHENYANG UNIVERSITY OF TECHNOLOGY

Polarization reconfigurable array antenna beam forming method using polarization selection dictionary matrix

The invention relates to a polarization reconfigurable array antenna beam forming method using a polarization selection dictionary matrix, and aims to solve the problems that an existing reconfigurable array polarization selection algorithm is low in calculation efficiency, high in parameter sensitivity and incapable of achieving beam scanning. The method comprises the following steps: firstly, giving an expected main polarization direction and a cross polarization direction; then, according to the polarization state which can be provided by each unit, constructing a polarization selection dictionary matrix used for selecting a unit polarization mode; then, according to the polarization selection dictionary matrix and a given polarization direction, constructing a corresponding main polarization beam matrix and a cross polarization beam matrix; and finally, converting a non-convex polarization selection problem into a convexity problem for solving. Compared with an existing stochastic optimization algorithm in the field of polarization reconfigurable array beam forming, the method has higher efficiency and better stability, so that the method has higher practical value.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA +1

Power grid side energy storage two-stage planning method under sea wind access scene based on temperature-tide safety domain mapping

PendingCN121769961AForecastingBiological modelsTrend predictionCascade algorithm
The invention relates to a power grid side energy storage two-stage locating and sizing method in a sea wind access scene considering the influence of temperature on a tide safety domain. The method comprises the following steps: adopting a temperature trend prediction model combining LSTM and TCN; a Gaussian mixture model is adopted to calculate a temperature variable capacitance expectation coefficient, and a power flow safety domain is reconstructed; establishing a random optimization scene set of source-load space-time coupling by adopting a typical source-load daily trajectory clustering method; establishing a power distribution network energy storage locating and sizing planning layer model taking the maximum comprehensive utility as a target; a power distribution network energy storage locating and sizing operation layer model with the minimum voltage fluctuation quadratic sum as the target is established; constructing a DistFlow multi-period optimal power flow model under the sea wind access scene; and solving the planning layer by adopting second-order cone relaxation, and carrying out secondary optimization on a charge-discharge and capacity configuration strategy on the operation layer by adopting a target cascade algorithm on the basis of anchoring a locating and sizing decision variable of the planning layer. According to the method, planning and operation targets can be more effectively coordinated, and comprehensive optimal configuration of power grid side energy storage is realized.
Owner:FUZHOU UNIV

Sunshade optimization method based on environmental parameter reverse modeling

The invention relates to the technical field of intelligent building control, in particular to a sunshade optimization method based on environmental parameter reverse modeling, and the method comprises the steps: 1, collecting dynamic parameters; 2, light field reverse modeling is carried out; 3, reversely solving a sunshade configuration, constructing an optimization function by taking improvement of an indoor photo-thermal environment as a target, inverting a regulation and control action region of a sunshade component according to the position of a highlight region, and iteratively solving a target state set of the sunshade component by adopting a random optimization algorithm; step 4, interference effect compensation: detecting light intensity deviation of interference areas of adjacent components, and generating dynamic compensation amount of the sunshade component; and 5, generating a control instruction, fusing the target state set and the dynamic compensation amount to generate a final control parameter, and converting the final control parameter into an execution mechanism driving instruction according to mechanical transmission characteristics. According to the sunshade optimization method, the energy efficiency of the building is improved, the comfort and adaptability of the building are enhanced, and the method has high practical application prospects and market value.
Owner:BEIJING TENGMEIQI TECH DEV CO LTD

Multi-level collaborative random optimization scheduling method, device, equipment and medium

The invention belongs to the technical field of new energy power generation, and particularly relates to a multistage collaborative random optimization scheduling method, device and equipment and a medium. The method comprises the steps of establishing a robust constraint for global new energy prediction uncertainty, and establishing a chance constraint for local new energy prediction uncertainty; for prediction error distribution of different areas, a kernel density estimation method is adopted to establish a global and local new energy prediction error probability distribution model, and the maximum value of a certain quantile of global and local new energy prediction errors is selected; and a global robust and local random multi-region power system random optimization scheduling model is constructed, a bipartite iteration method is adopted to optimize opportunity parameters of establishment of reserve capacity constraints of each region, and the target of economical optimization operation of the multi-region interconnection system is achieved.
Owner:CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +3

Power system low-carbon scheduling method and device, computer equipment, readable storage medium and program product

The invention relates to a power system low-carbon scheduling method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: constructing a source load uncertainty set of wind power and loads in a power system; constructing a system operation constraint based on robust optimization according to the source load uncertainty set, an adjustment strategy of each adjustment resource on source load fluctuation, a power balance constraint, a wind power operation constraint, an adjustment resource operation constraint and a line transmission constraint; constructing a reference cost function according to the reference cost parameter, constructing an adjustment expected cost based on random optimization according to the source load uncertainty set, and obtaining a scheduling cost function according to the reference cost function and the adjustment expected cost; constructing a scheduling model according to the system operation constraint and the scheduling cost function; and carrying out optimization solution on the scheduling model by taking the minimum scheduling cost function as an optimization target to obtain a scheduling strategy parameter, and scheduling the power system. By adopting the method, safe and economical operation of the power system can be effectively guaranteed.
Owner:CHINA SOUTHERN POWER GRID ARTIFICIAL INTELLIGENCE TECHNOLOGY CO LTD

Power distribution network mobile energy storage optimal configuration method and equipment considering fault evolution under typhoon disaster

The invention provides a power distribution network mobile energy storage optimization configuration method and equipment considering fault evolution under typhoon disasters, and belongs to the field of power distribution network mobile energy storage optimization configuration. The method comprises the following steps: firstly, establishing a typhoon disaster space-time evolution model according to typhoon weather prediction information, and constructing a space-time characteristic matrix of a distribution line fault rate; then determining a fragile line based on the space-time characteristic matrix of the line fault rate, and building a pre-disaster mobile energy storage pre-scheduling model to prepare for rapid recovery of a post-disaster system; then, a mobile energy storage optimal configuration and operation strategy in a probability scene is searched by adopting random optimization to minimize the economic loss of the affected power distribution network during a typhoon disaster, and a random optimization model of mobile energy storage optimal configuration and operation is established; the flexibility of mobile energy storage is fully utilized to provide staged power support for the power distribution network during typhoon disasters, the problem that safe and reliable power utilization of the power distribution network is difficult to guarantee under typhoon extreme disasters is effectively solved, and the elasticity of the power distribution network is improved.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

Unmanned aerial vehicle cruise path planning method for multi-priority dynamic coverage

The invention discloses an unmanned aerial vehicle cruise path planning method for multi-priority dynamic coverage, and the method comprises the steps: carrying out the sorting of the detection priorities of different parts of a region according to the traversal period constraint, carrying out the high-frequency cruise detection of key parts, and carrying out the low-frequency cruise detection of general parts; secondly, according to the priority ranking, recursively constructing a series of cyclic cruise path planning schemes by adopting a stochastic optimization algorithm, so that the region is dynamically covered and meets corresponding traversal period constraints; and finally, analyzing and evaluating the cruise path planning scheme from two aspects of redundancy and priority, and outputting an optimal planning scheme. Compared with a traditional path planning method, cyclic cruise detection is carried out according to the priority, the whole area can be dynamically covered with emphasis, the cooperative cruise detection efficiency of the unmanned aerial vehicle is effectively improved, and the area change is accurately mastered; in addition, the cooperative cruise path can be adaptively adjusted according to the priority change, unmanned detection resources are efficiently utilized, and the method flexibly adapts to the dynamic coverage demand change.
Owner:THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP

Distributed new energy regulation and control method and system based on double-layer clustering

The invention discloses a distributed new energy regulation and control method and system based on double-layer clustering, and the method comprises the steps: carrying out the primary clustering according to a first aggregation index of distributed new energy, and obtaining a partitioning result of the distributed new energy; carrying out primary polymerization and secondary polymerization on the distributed new energy to obtain a new energy polymerization group; generating random power generation scenes according to the power generation capacity prediction error limit of the new energy aggregation group, and constructing a random optimization scheduling model by taking minimization of the power generation cost, the new energy abandoning penalty cost and the carbon emission cost in each scene as an objective function; based on new energy aggregation constraint, equipment model constraint and power balance constraint, a solver is adopted to solve the model, a final generator set output arrangement result is obtained, the result can adapt to nonlinear output fluctuation change of a time sequence, the output prediction precision and controllability are improved, and the method is suitable for large-scale popularization and application. The problems of low power dispatching efficiency and poor effect caused by incapability of high-precision partition classification and random scene optimization dispatching in the prior art are solved.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD NINGBO POWER SUPPLY CO

Method and system for cooperative operation of shared energy storage and new energy station

The invention discloses a shared energy storage and new energy station cooperative operation method and system, and relates to the field of power market and energy storage optimization management in a power system, and the method comprises the following steps: extracting historical wind and light scene data of a new energy station; according to historical wind and light scene data, a wind and light prediction error probability model is established, and after sampling and scene reduction, a limited typical scene is extracted and an uncertainty set is constructed; and on the basis of the limited typical scene and the uncertainty set, by taking the benefit maximization of the new energy station as a target and combining a virtual energy storage operation mode, constructing a shared energy storage and new energy station collaborative operation framework, and generating a double-track system optimal collaborative strategy. The method is used for solving the problems that stochastic optimization calculation is complex, traditional robust optimization benefits are limited, and energy storage resource configuration efficiency is low.
Owner:ECONOMIC TECH RES INST OF STATE GRID ANHUI ELECTRIC POWER

Optimal allocation method and device for mobile energy storage of distribution network under typhoon disaster considering fault evolution

The application provides a mobile energy storage optimal configuration method and equipment for distribution network under typhoon disaster considering fault evolution, and belongs to the field of mobile energy storage optimal configuration for distribution network. The method firstly establishes a typhoon disaster space-time evolution model according to typhoon meteorological prediction information, and constructs a space-time characteristic matrix of distribution line failure rate; then determines the vulnerable line based on the space-time characteristic matrix of the line failure rate, and builds a pre-disaster mobile energy storage pre-scheduling model to prepare for the post-disaster system rapid recovery; then, the optimal configuration and operation strategy of the mobile energy storage under the probability scenario are found by using random optimization to minimize the economic loss of the disaster distribution network during the typhoon disaster, a random optimization model of the mobile energy storage optimal configuration and operation is established, and the flexibility of the mobile energy storage is fully utilized to provide phased power support for the distribution network during the typhoon disaster, effectively solving the problem that the distribution network is difficult to guarantee safe and reliable power supply under the typhoon extreme disaster, and improving the flexibility of the distribution network.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

Data center two-stage stochastic optimization method and system considering wind and light uncertainty

ActiveCN121923152AGeneration forecast in ac networkAc network load balancingMultivariate normal distributionAlgorithm
The invention relates to the technical field of data center optimization, and particularly discloses a data center two-stage stochastic optimization method and system considering wind and light uncertainty, and the method comprises the steps: carrying out the modeling of a data center energy supply system, generating a wind and light output sample based on Monte Carlo simulation, enabling the generated random sample to meet wind power and photovoltaic output complementation through Corisky decomposition; introducing a first-order autoregression model, generating random scenes in combination with multivariate normal distribution, and obtaining a wind and light output curve in each scene; a two-stage stochastic optimization model containing computing power scheduling and multi-energy coordination is constructed by taking the minimum expected operation cost of a system as a target, the model is solved, and an optimal time sequence operation strategy of a computing power task is decided. According to the two-stage random optimization, the adjustment cost caused by prediction errors is covered with low risk premium, and effective support is provided for reliable operation of the data center under new energy output fluctuation and computing power load time sequence mismatch.
Owner:SHANDONG UNIV

Cooperative scheduling method and device for port integrated energy system

The invention discloses a port integrated energy system cooperative scheduling method and device, and relates to the technical field of power system optimization scheduling, and the method comprises the steps: receiving equipment operation parameters of a port logistics system and an integrated energy system and ship operation related data, the method comprises the following steps of: inputting equipment operation parameters of a port logistics system and an integrated energy system and ship operation related data into a pre-established port integrated energy system collaborative scheduling model fusing hydrogen energy and electric energy, and modeling uncertainty by utilizing a Markov chain according to a multi-stage stochastic optimization theory; based on a random dual dynamic integer programming algorithm, solving the port integrated energy system collaborative scheduling model fusing the hydrogen energy and the electric energy, and outputting to obtain an optimal collaborative scheduling result of the port integrated energy system under the multi-source uncertainty condition; and the operation flexibility and stability of the energy system are enhanced.
Owner:SOUTHEAST UNIV

Power system reserve stochastic optimization method, system, device and medium based on typical photovoltaic scenarios

The present invention belongs to the technical field of optimal dispatching of power systems, and discloses a power system reserve stochastic optimization method, system, device and medium based on typical photovoltaic scenarios. The method of the present invention includes obtaining predicted photovoltaic power probability data and forming sequences of data corresponding to different quantiles, using linear interpolation to obtain the photovoltaic power cumulative distribution function to calculate the photovoltaic predicted power; using the Gaussian Copula function to construct a multivariate distribution function that satisfies the temporal correlation of photovoltaic power, and obtaining multiple photovoltaic power prediction scenarios through Monte Carlo sampling; based on the K-means++ algorithm, reducing the photovoltaic power prediction scenarios to obtain multiple typical photovoltaic scenarios; constructing an objective function based on operation cost, reserve cost and start-stop cost and obtaining preset reserve stochastic optimization conditions to construct a power system reserve stochastic optimization model under multiple typical photovoltaic scenarios. The present invention not only improves the operation efficiency and economy of the power system, but also provides guarantee for the safe operation dispatching of the system.
Owner:ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY

Method and system for predicting spark flashover point occurrence position of pulse high voltage power supply

The application discloses a kind of spark flashover point generation position prediction method and system of pulse high voltage power supply, obtain spark flashover characteristic database from initial time to the total number of spark flashover stored during current time, determine the spark flashover number of each partition in total number of spark flashover, based on total number of spark flashover and the spark flashover number corresponding to each partition, obtain the current occurrence probability of spark flashover of each partition, determine the instantaneous impedance variation law of each partition when flue gas working condition parameter changes, based on the current occurrence probability corresponding to each partition spark flashover and instantaneous impedance variation law of spark flashover, using random optimization algorithm, obtain the predicted occurrence position and predicted occurrence probability of spark flashover point next time.The application realizes the predicted occurrence position and predicted occurrence probability of spark flashover point next time, to improve the intelligent control level of pulse high voltage power supply.
Owner:FUJIAN LONGKING CO LTD

Comprehensive energy system optimization scheduling method considering indirect carbon emission uncertainty

The invention relates to a comprehensive energy system optimization scheduling method considering indirect carbon emission uncertainty. The method comprises the following steps: acquiring basic data; quantitative modeling is carried out on the uncertainty factors, and an uncertainty set used for describing the fluctuation range of the uncertainty factors is constructed; establishing a carbon emission and transaction cost calculation model of the system, firstly accounting the free carbon emission quota of the system, secondly calculating the actual net carbon emission of the system, and finally calculating the carbon transaction cost required to be paid or obtained by the system; constructing a stochastic optimization scheduling model, taking a minimum actual total net carbon emission amount of the system as a target function, and setting constraint conditions including a system total operation cost constraint, a power balance constraint and an equipment operation constraint; and converting the stochastic optimization scheduling model into a mixed integer linear programming problem for solving to obtain an optimal output plan and an energy scheduling scheme of each device, which enable the actual total net carbon emission of the system to be minimum. According to the method, the net carbon emission of the system can be minimized in multiple uncertain environments.
Owner:国网天津市电力公司经济技术研究院 +2

A multi-stage stochastic optimization scheduling method and system for a photovoltaic-thermal power system

The application discloses a kind of multi-stage random optimization scheduling method and system of photovoltaic-thermal power system, comprising: step one: obtaining unit parameter and new energy output prediction curve;Step two: based on prediction curve, generate at least five kinds of scene, construct the scene tree structure of multi-stage;Step three: on the basis of scene tree structure, with multi-stage random programming model as framework, construct the multi-stage random optimization scheduling model of photovoltaic-thermal power system;Step four: stage 3 is optimized using load aggregation, photovoltaic-thermal unit aggregation two methods, and construct acceleration optimization model;Step five: solve acceleration optimization comprehensive model.The system includes data acquisition module, scene tree construction module, model construction module, model optimization module and model solution module.The application can make up the slow speed of multi-stage random optimization scheduling model solution of photovoltaic-thermal power system, and it has certain significance for large-scale medium and long term power system planning.
Owner:XI AN JIAOTONG UNIV +1