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108results about How to "Shorten the schedule" patented technology

Comprehensive energy system optimal scheduling method considering conditional risk value

The invention discloses a comprehensive energy system optimal scheduling method considering a conditional risk value. The method comprises the following steps: modeling equipment of a comprehensive energy system; constructing a basic optimization scheduling model of the comprehensive energy system based on the energy concentrator, wherein the objective function of the model is the minimum cost; constructing a scene-based two-stage scheduling random optimization model; and finally, establishing a comprehensive energy system optimal scheduling model considering the conditional risk value. According to the method, the minimum risk cost can be used as a target function to prevent the system from improving the large operation cost to deal with the uncertainty of the comprehensive energy system,and the risk can be prevented from being avoided blindly by solving the marginal risk cost. According to the method, the risk can be well reduced, the concept of marginal risk cost is provided on thebasis of the risk coefficient, and guidance is provided for finding out a scheduling mode capable of reducing the conditional risk value to the maximum extent by increasing the unit scheduling cost and judging whether the system needs to avoid the risk or not.
Owner:XI AN JIAOTONG UNIV +2

Combined cycle and straight condensing thermal power combined dispatching system and method

The invention provides a combined cycle and straight condensing thermal power combined dispatching system and method, comprising a gas-heating boiler and gas combined cycle, a straight condensing thermal power unit, an air conditioner heat pump, an electric energy meter, a heat radiator, a heat consumption meter, a first remote centralized controller, a second remote centralized controller, a third remote centralized controller and a dispatching control device, wherein the second remote centralized controllers acquires the power consumption data detected by the electric energy meter and the heating consumption data detected by the heat consumption meter, and the dispatching control device controls the operation of the gas-heating boiler and gas combined cycle, the straight condensing type thermal power unit, the air conditioner heat pump and the heat radiator through the first, second and third remote centralized controllers. By acquiring the pipeline distance between a user and the heat source, the combined cycle and straight condensing thermal power combined dispatching system reasonably performs combined dispatching on the originally independently operating straight condensing thermal power unit and the gas-heating boiler and gas combined cycle by using the pipeline distance, effectively reduces the total energy consumption of the gas-heating boiler and gas combined cycle and the straight condensing thermal power unit, avoids waste of fuel resources and simultaneously causes dispatching to be more timely and accurate.
Owner:XI AN JIAOTONG UNIV

Video file distribution method and video file distribution system

The invention provides a video file distribution method. A video file comprises a low frequency essential data layer and at least one high frequency detail data layer after layered coding. The video file distribution method is characterized in that the transmission efficiency of a distribution network can be determined; the distribution level of the video file can be determined by comparing the transmission efficiency with a predetermined efficiency / distribution level model; the video file is distributed based on the determined distribution level of the video file; the residual distribution levels of the predetermined efficiency / distribution level model are corresponding to the distribution of the combination of the low frequency essential data and at least one high frequency detail data layer of the video file after the layered coding. The invention also provides a video file distribution system. According to the current network quality, the video files can be transmitted according to different distribution levels, the video definition can be adjusted in a self-adapted manner according to the condition of the network quality, and therefore the storage space can be greatly reduced, the scheduling quantity can be reduced, and the user experience can be improved.
Owner:LETV HLDG BEIJING CO LTD +1

Prefabricated stair and production and construction method thereof

The invention discloses a prefabricated stair and a production and construction method thereof, and belongs to the field of prefabricated stairs, the production and construction method comprises the following steps: assembling a bottom die: assembling the bottom die into a standard kicking surface height and a tread height of stone reverse hitting, and reserving a stone thickness for the kicking surface height; the back face of the stone is coated with a waterproof interface agent, anchoring holes are drilled in the stone and filled with a binding agent, claw nails are fixed to the anchoring holes of the stone, filling holes are formed between the claw nails and the back face of the stone, and then the front face of the stone is positioned at the corresponding tread and kicking face positions of the bottom die; waterproof sealing treatment is carried out on the appearing joints; mounting a reinforcement cage: hoisting the reinforcement cage to the bottom die; assembling a side mold; pouring concrete; the prefabricated stair comprises a stair body, stone and a reinforcement cage. According to the prefabricated stair and the production and construction method thereof, the stone and the stair body are firmly connected, the integrality is good, the waterproofness is good, the environmental applicability is high, field installation is easy, and the influence on the installation environment is small.
Owner:中铁科建预制科技有限公司

System and method for joint scheduling of extracting-condensing type heat and power cogeneration and straight condensing thermal power generation

The invention provides a system and a method for joint scheduling of extracting-condensing type heat and power cogeneration and straight condensing thermal power generation. The system comprises a heat and power cogeneration unit, a straight condensing type thermal power generating unit, an air conditioner heat pump, an electric energy meter, a radiator, a heat consumption meter, a second remote centralized controller and a scheduling control device, wherein the second remote centralized controller is used for acquiring power consumption data detected by the electric energy meter and heat consumption data detected by the heat consumption meter; and the scheduling control device is used for controlling the heat and power cogeneration unit, the straight condensing type thermal power generating unit, the air conditioner heat pump and the radiator to operate through a first remote centralized controller, the second remote centralized controller and a third remote centralized controller. According to the system and the method, the condensing type thermal power generating unit and the heat and power cogeneration unit which are independently operated conventionally are subjected to joint scheduling by acquiring distances between users and heat source pipelines and using the reasonability of the pipeline distances, so that the total energy consumption of the heat and power cogeneration unit and the straight condensing type thermal power generating unit is effectively lowered, the waste of fuel resources is prevented, and the scheduling is more timely and accurate at the same time.
Owner:STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +3
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