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74results about How to "Improve scheduling" patented technology

Integrated scheduling system for small and medium radial flow type hydropower station group

ActiveCN103714426ABreak the boundaries of scheduling managementImprove management levelResourcesSystems intergating technologiesEngineeringDrainage basin
The invention discloses an integrated scheduling system for a small and medium radial flow type hydropower station group. Rain and water condition information acquired from a rain and water condition monitoring terminal, flow information acquired from a flow monitoring terminal, power station information, power station installing information and electrical network electricity demand acquired from a power station operation monitoring terminal are provided by a data collection platform for a scheduling plan compiling platform to generate a corresponding scheduling plan, related data is further acquired by an information issuing platform from the data collection platform to comprehensively display various types of information in a basin, through establishment of the integrated scheduling system for the small and medium radial flow type hydropower station group, integrated hydropower scheduling is carried out at county net factories, a traditional, single and rough hydropower station management mode is changed, electrical network scheduling management boundary is broken, management capacity of small and medium water power enterprises is improved integrally, and energy saving, emission reduction, water saving and power generation increase are realized.
Owner:STATE GRID CORP OF CHINA +2

Gasholder load prediction equipment and method and gas scheduling system and method

The invention discloses gasholder load prediction equipment and a gasholder load prediction method for a gas system, and a gas scheduling system and a gas scheduling method. The gas system comprises a low-pressure gas generating device and a gasholder which are connected with each other. The method comprises the following steps of: (1) acquiring gasholder loads and gas output of the low-pressure gas generating device at different moments in a first preset time period; (2) selecting a model structure of a gasholder load prediction model, and establishing a gasholder load prediction model according to the selected model structure and the acquired gasholder loads and gas output of the low-pressure gas generating device at different moments in the first preset time period; and (3) predicting gasholder loads at different moments in a second preset time period by utilizing the established gasholder load prediction model, wherein the second preset time period is a time period after the first preset time period. The gasholder load prediction-based gas scheduling system and the gasholder load prediction-based gas scheduling method can radically solve the current problem that the gas balancing and scheduling are carried out through experiences, obviously improve the scheduling level of the gas system and prevent the gasholder loads from exceeding the upper and lower load limits of the gasholder.
Owner:CHINA PETROLEUM & CHEM CORP +1

Electric power communication protocol extension-based master substation remote programmed control method

The invention discloses an electric power communication protocol extension-based master substation remote programmed control method. On the basis of a power grid dispatching control system, the system comprises an intelligent substation master station and an intelligent substation sub-station, wherein the intelligent substation sub-station comprises a data communication gateway machine, a substation monitoring system, one or more measuring and control devices and one or more protection devices; the intelligent substation sub-station and the intelligent substation master station are in cooperation to achieve a remote programmed operation function; the intelligent substation master station does not need to store a programmed operation ticket and summons a programmed control object of the intelligent substation sub-station through the data communication gateway machine; the programmed operation ticket is stored and maintained in the substation monitoring system; and the data communication gateway machine takes charge of generation and pushing of the station end programmed control object, analysis of the operation ticket, decomposition execution of programmed operation, interaction of operation process information and pushing of an equipment state. The master substation remote programmed control method meets the program control requirements between the master station and the sub-station; and the dispatching level of a power system is improved.
Owner:STATE GRID SHAOXING POWER SUPPLY +3

Medium-short term coordinated dispatching method for ultra-high voltage AC-DC hybrid power grid

The invention provides a medium-short term coordinated dispatching method for ultra-high voltage AC-DC hybrid power grid, and relates to the field of electrical power system power generation dispatching. When electricity is transmitted from west to east, feed-in scale is sharply increased in a low peak period, and load adjustment difficulty of a receiving power network is significantly increased, causing a power grid medium-short term start-up mode and running plan arrangement difficulty to be increased accordingly. The method comprises medium term plan formulation and short term plan formulation. The medium term plan formulation adopts a month as a decision cycle and a day as a calculation period, on the conditions of guaranteeing electrical power system load requirements and operational parameters of a power station and a machine set, monthly electricity is divided into days, and a daily start-up mode of the machine set is optimized; the short term plant forms a 96-point power output plan of daily electricity according to a short-term load prediction result; rolling amendment is conducted on an original medium-term power generating plan according to the latest prediction information of the load and machine set actual electricity completion situation; according to the technical scheme, frequent start-ups and stops of the power generating machine set are avoided, effective engagement and mutual coordination between a medium term and short term power generating plan are achieved.
Owner:DALIAN UNIV OF TECH +2

Just-in-time-based parallel forward calculation programing method for steel-making production planned time

The invention discloses a just-in-time-based parallel forward calculation programing method for steel-making production planned time. The method comprises the following steps of: on the basis that a steel-making production process flow network bottom layer object model takes a working position, a working procedure and a transport line as basic elements and the normal distribution rules of the operation time and transportation time of various steel grades are considered, regarding the pouring start time of each heat of sequential casting constraint calculation as a delivery date; taking the operation start time of each heat in the aspect of working procedure based on working procedure backward calculation as the planned reference target time; after the start and end operation time of each heat are calculated by time parallel forward calculation, distributing an appropriate processing working position for each heat by a working position selection rule; and adjusting and determining the start and end operation time on a corresponding working position of each heat by a heat operation time adjusting strategy in reference to the reference target time. An executable operation planning and dispatching scheme for realizing sequential casting production can be programmed rapidly and the method has high generality and wide applicability to the optimization of steel-making production operation planning and dispatching.
Owner:KUNMING UNIV OF SCI & TECH

Power day-ahead market clearing method with flexible constrained condition

The invention relates to a power day-ahead market clearing method with flexible constrained condition, and belongs to the technical fields of power system scheduling and power marker transaction. Themethod comprises that a power day-ahead market clearing mathematical model with flexible constrained condition is constructed, a constrained condition flexible day-ahead marking clearing result is obtained by calculation, a renewable energy uniform reduction model without consideration of deep peak shaving is constructed, a renewable energy uniform reduction result is obtained by calculation, anda deep peak shaving clearing price and a reduction avoiding clearing price are calculated. The thermal power set and renewable energy modeling method and thermal power deep peak shaving and renewableenergy reduction balanced modeling method as well as the renewable energy uniform reduction model with the flexible constraint condition are provided, technical support is provided for day-ahead marker clearing or day-ahead plan arrangement with the flexible constraint condition considering the thermal power deep shaving and ordered renewable energy reduction, the difficulty in coordinating thermal power and renewable energy in the day-ahead marker is overcome, and consumption of the renewable energy is prompted.
Owner:TSINGHUA UNIV +2

Cloud manufacturing multi-task scheduling optimization method based on game theory

The invention discloses a cloud manufacturing multi-task scheduling optimization method based on a game theory. The method comprises the steps of establishing a CMMS game model based on time, cost andreliability in combination with the game theory; initializing to obtain habitats, and representing each habitat by adopting a matrix; adopting a fitness function based on Nash equilibrium to calculate the habitat suitability index of each habitat, and determining an initial optimal solution according to the habitat suitability index; selecting a habitat to execute migration operation according tothe immigration rate and the emigration rate, and updating the optimal solution; selecting a corresponding habitat to perform mutation operation according to the mutation rate, and updating the optimal solution; updating the population by adopting an elitist replacement strategy; if the number of iterations is reached, outputting an optimal solution, namely an optimal scheduling scheme; otherwise, continuing iteration. According to the method, a new cloud manufacturing multi-task scheduling game model is provided based on the game theory, a better scheduling scheme can be obtained, and the defects of premature convergence and poor population diversity of a basic BBO algorithm are overcome.
Owner:ZHEJIANG UNIV OF FINANCE & ECONOMICS

Data scheduling acquisition device and method

The invention relates to a data scheduling acquisition device. The data scheduling acquisition device comprises a platform frame layer, an acquisition adaptation layer and an equipment layer. The platform frame layer is used for receiving acquisition requests, issuing acquisition tasks, acquiring acquisition task progress information of the acquisition adaptation layer and distributing acquisition data. The acquisition adaptation layer comprises multiple acquisition adapters used for receiving the acquisition tasks and conducting data acquisition on the equipment layer. The platform frame layer comprises a scheduling clustering module and an original platform frame module. The original platform frame module is used for receiving the acquisition requests and adapter control information. The scheduling clustering module is used for receiving the acquisition request sent by the original platform frame module, generating the acquisition tasks and issuing the acquisition tasks to the adapters, with small loads and without damage, in corresponding adapter domains of the acquisition adaptation layer. Acquisition task scheduling is completed through the platform frame layer, high availability of scheduling is improved, and the overall scheduling level is increased; the acquisition data is stored through an HDFS module of a distributed file system, and high fault tolerance and high throughput of the data are achieved.
Owner:HANGZHOU EASTCOM SOFTWARE TECH

Wind power uncertainty-considered electricity-heat combined system economic dispatching method

The invention discloses a wind power uncertainty-considered electricity-heat combined system economic dispatching method. According to the economic dispatching method, firstly, the uncertainty of windpower is processed by adopting a multi-scene method; secondly, a generalized benders decomposition method is adopted to consider the electricity-electricity of the wind power uncertainty; the economic dispatch problem of the heat united system is divided into a power system sub-problem and a heat supply network main problem. Wherein the power system sub-problem is a power system scheduling modelbased on multiple wind power scenes, and the heat supply network main problem is a heat supply network constraint problem considering network thermal delay and building thermal inertia. The method comprises the following steps: solving a power system sub-problem to obtain unit output and electric boiler power, verifying a unit output result by using a heat supply network main problem, and if not,adding constraints of a combined heat and power generation unit and an electric boiler to the power system sub-problem to carry out iterative solution. According to the method, the uncertainty of windpower is considered more finely during thermal joint scheduling, and the method is of great significance in improving the scheduling economy and maintaining the safety of a power system.
Owner:SOUTHEAST UNIV
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