12 results about "Cost–benefit analysis" patented technology

The invention belongs to the technical field of cold and heat source configuration methods, and particularly relates to a cold and heat source configuration optimization method and system based on a full life cycle, and the method comprises the steps: S1, building use characteristic analysis; s2, designing a staged unit configuration scheme; s3, optimizing an intelligent control strategy; s4, carrying out full-life-cycle cost-benefit analysis; s5, optimal scheme decision making and dynamic adjustment; according to the method, a dynamic prediction model of a time sequence analysis and Transform-TCN hybrid architecture is adopted, historical load data can be deeply mined through time sequence analysis, and time characteristics and periodic rules in the data are captured; the long sequence modeling capability of the Transform and the local feature extraction capability of the TCN are combined by the Transform-TCN hybrid architecture, so that the long and short term dependency relationship in the load data can be better processed, and the prediction accuracy is improved.

The invention discloses a calculation method for waste aluminum optimal proportion and raw material cost in 6-series aluminum alloy round ingot smelting, which comprises the following steps of: firstly, determining suitability and maximum additive amount of waste aluminum: determining component calculation values of all elements according to a preset rule by comparing target alloy component requirements with actual components of the waste aluminum; and calculating the additive amount limited by each element, taking the minimum value of the additive amount as the theoretical maximum additive amount, and judging whether the economic threshold value is reached or not. And for the waste aluminum suitable for addition, cost-benefit analysis is carried out subsequently: the reference cost of not using the waste aluminum and the scheme cost of using the maximum addition amount of the waste aluminum are calculated respectively, and the economic feasibility of purchase and use is evaluated by comparing the reference cost and the scheme cost. According to the method, technical feasibility and economic analysis are combined, a quantitative decision support method is formed, whole-process optimization from casting matching to purchase decision is achieved, and the resource utilization rate is remarkably increased and the production cost is reduced while the stable quality of aluminum alloy products is guaranteed.

The invention discloses a watershed ditch and pond-road low-cost ecological sand control method based on hydrological connectivity, which belongs to the field of ecological environment protection and mainly comprises the steps of data acquisition, DEM data correction, confluence network construction, hydrological structure connectivity identification, SWAT model construction, key source area identification, scene analysis and cost benefit analysis. Under the influence of a ditch pond-road system, the key source area identification technology based on hydrological structure connectivity and the drainage basin key source area ditch pond road low-cost water regulation and soil conservation method achieve the dual purposes of reducing the water and soil regulation and control cost and continuously improving the ecological benefit by identifying the key source area.

This invention discloses a cost-benefit analysis method for the joint operation of distribution network edge resources based on multi-energy complementarity. The cost analysis consists of three parts: initial investment cost, operating cost, and wind power cost. Based on the existing centralized gas heating method, the converted electricity price and subsidy fees are calculated. Finally, by comparing with the existing heating subsidy policy, the benefits of the gas-curtailed wind complementary method are analyzed. The advantages of this invention are: considering factors such as environment, temperature regulation, energy saving, and safety, the gas-curtailed wind complementary heating method has advantages such as low initial investment cost, stable operation, low maintenance, safety and no pollution, and good economic efficiency.

The invention discloses a method for improving flexible power supply capacity through synchronous configuration of a wind-solar storage network, and belongs to the technical field of power system automation and new energy grid connection. According to the method, for a grid-connected micro-grid containing a battery energy storage system, solar energy and wind energy, a dual-target optimization model integrating voltage deviation and power loss is established, and the locating and sizing of a distributed power supply and energy storage and a BESS charging and discharging plan are optimized in a collaborative mode. Based on a node system, in combination with four-season load and wind-solar output data, an optimal access position is analyzed and determined by adopting loss sensitive factors, uncertainty is processed by utilizing a point estimation method, and loss is further reduced through power distribution network reconstruction. And meanwhile, data preprocessing and cost-benefit analysis are introduced, so that the model precision and economic feasibility are improved. The method can significantly reduce the network loss, improve the voltage quality, improve the system operation efficiency and the power supply flexibility, and is suitable for the optimal configuration of the power distribution network in a high-proportion renewable energy access scene.

The application discloses a highway expansion mode decision method based on a whole life cycle cost benefit, and comprises the following steps: S1, highway expansion period construction cost is estimated; S2, highway expansion period construction carbon emission cost is estimated; S3, highway expansion period operation benefit loss is estimated; S4, highway operation period operation benefit is estimated; S5, highway expansion operation period operation cost is estimated; S6, highway expansion period and operation period vehicle operation carbon emission cost are estimated; S7, based on whole life cycle cost benefit analysis, the expansion scheme is decided.The application considers the construction and operation period carbon emission cost and the expansion period operation benefit loss, so that the whole life cycle cost benefit system of the highway expansion project is more perfect.Facing different expansion modes, the method can be used to complete the total cost benefit analysis of the construction period and the operation period, and the generality of the decision method is improved.

An embodiment analyzes, to determine a value of a chemical compound, a first sensor data to determine a density of the chemical compound, where the chemical compound is emitted from a candidate underwater source in a water body where an operation of a floating farm operation is conducted. The embodiment performs a cost-benefit analysis using the value of the chemical compound and a cost of using the chemical compound in the operation of the floating farm. The embodiment causes, in response to the cost-benefit analysis justification for an upwelling movement, the upwelling movement of an upwelling apparatus to a submerged location in the water body. The embodiment causes, in response to the cost-benefit analysis justification for a farm relocation, the farm relocation of the floating farm to a surface location in the water body.

The invention discloses a comprehensive cost recovery model in a power generation subject multi-product market, a solving method, a solving system, a solving device and a medium, and belongs to the technical field of power market operation and optimization. A lower-layer model objective function is constructed, lower-layer model constraint conditions are established based on the lower-layer model objective function, an upper-layer model objective function is constructed, and market indexes, compensation indexes and cost are calculated based on the upper-layer model objective function; converting the constructed lower-layer model through a duality theory, carrying out unified solution with the upper-layer model, transmitting data to the upper-layer model, and calling a solver to calculate the cost recovery condition of the power generation enterprise. According to the invention, a double-layer framework of market clearing simulation and cost benefit analysis is constructed, a multi-market coupling transaction mechanism is represented, and the cost recovery efficiency of the power generation enterprise is improved. A double-layer problem is converted into computable single-layer planning, and complete analysis from market behavior simulation to cost recovery state quantification is formed.

The invention provides a high throughput-oriented accurate user traceability attribution method and system, and belongs to the technical field of computer networks, and the method comprises the steps: for each breakpoint position in a track breakpoint set, according to the behavior characteristics and time distribution modes of front and back contacts, calculating missing intermediate contact information through a probabilistic reasoning mechanism, obtaining a complemented user behavior track sequence; according to an attribution weight distribution result, calculating channel optimization suggestion parameters by adopting a cost-benefit analysis algorithm to obtain a quantitative guidance scheme of marketing resource configuration; and continuously processing newly generated user behavior data by adopting a real-time monitoring mechanism through quantizing configuration parameters in a guidance scheme, and triggering a model parameter updating process if detecting that an attribution mode is remarkably changed, so as to obtain a dynamically adjusted marketing effect evaluation system. Through the technical scheme, cross-platform marketing effect attribution can be realized, and the problems of multi-channel data isomerism, user behavior track breakage and difficulty in contact contribution degree quantification are solved.

The invention discloses a project full-life-cycle investment evaluation method and system based on multi-dimensional cost-benefit analysis, and relates to the technical field of planning project benefit evaluation.According to the project full-life-cycle investment evaluation method and system based on multi-dimensional cost-benefit analysis, multi-dimensional benefit indexes are obtained, comprehensive benefit analysis is carried out, project profit analysis is carried out in combination with operation and maintenance cost, discount rate and project construction cost, and the project benefit evaluation efficiency is improved. Dynamic integration of multi-dimensional benefits and cost after project implementation is realized, and implementation effects of the project in a full life cycle can be truly reflected after external interference factors are eliminated; meanwhile, a traditional static financial evaluation framework is broken through, a dynamic multi-dimensional evaluation system with discount revenue as the core is established, the influence of multi-dimensional benefit indexes such as economic benefits, operation benefits and strategic benefits on project values is considered, the adaptability to different industry projects and scenes is guaranteed, and the method is suitable for popularization and application. And the comprehensive value of the project in the whole life cycle can be accurately evaluated.

The invention provides a motor controller aging test method and device, which can accurately simulate an actual failure working condition and dynamically optimize a new strategy of aging duration so as to maximize the interception efficiency of an aging test on potential faults and realize the optimal balance of quality, cost and benefits under the constraint of limited cost. The method comprises the steps of formulating an alternating cycle working condition for an aging test based on a collected fault database of a motor controller; the historical fault database is obtained through fault data fed back by the market end motor controller, and the historical fault data comprises operation condition parameters when a fault occurs; the optimal aging duration is dynamically determined based on the alternating cycle working condition in combination with cost benefit analysis; the cost income analysis is used for evaluating the total cost under different aging durations, and the total cost is the sum of the aging test cost and the market maintenance cost estimated based on the failure probability; and performing a factory aging test on the to-be-tested motor controller according to the alternating cycle working condition and the optimal aging duration.

The invention relates to the technical field of crossing of urban planning and public health, and discloses an urban blue-green space biodiversity leisure area planning system integrating accessibility and health benefits, which comprises a data integration module used for integrating and managing multi-source regional space data, the multi-source regional space data at least comprises regional biodiversity distribution data, urban land utilization data, traffic network data, population distribution data and social economic data, the blue-green space mental health benefits are accurately quantified, planning is promoted to be transformed to health guidance, and public health values are released; a space-time-economy comprehensive accessibility system is constructed, weak areas and vulnerable groups are accurately identified, and public health service equalization is assisted; planning scheme simulation prediction, quantitative comparison and cost-benefit analysis are supported, experience decision is replaced with scientific data, and scheme demonstration persuasion and decision efficiency are improved.