6 results about "Unit cost" patented technology

This invention discloses a method for analyzing key influencing parameters of the clearing price in the electricity spot market. Based on electricity spot market rules and nodal pricing models, it establishes the operating parameters affecting the clearing price and constructs an influencing factor system including unit cost, unit operation, system balance, and cross-sectional power flow. Then, it further constructs a full-time clearing simulation model of the electricity spot market considering carbon trading costs, establishing the objective function and constraints of the clearing model. Finally, based on the electricity spot market clearing simulation model, it compares the impact of each operating parameter on the market clearing price through sensitivity analysis and correlation diagram construction, thereby assessing the key parameters affecting the electricity spot market. This method not only systematically identifies the operating parameters affecting the clearing price in the electricity spot market but also allows for simple and efficient calculation and comparison of the impact of each parameter on the clearing price, thus clarifying the key parameters affecting the spot market and improving the decision-making efficiency of market participants.

The invention discloses a cold-rolled strip steel cost accounting method, system, equipment and medium based on multi-process division, and the method comprises the steps: obtaining a cold-rolled strip steel production process route, and carrying out the data accounting and delimiting division of the route, so as to obtain different independent sub-processes; obtaining production consumption and cost data of each sub-process, and dividing the production consumption and cost data into dynamic consumption data and fixed investment data; collecting dynamic consumption data through a metering instrument, and collecting fixed input data through a production information system; and calculating dynamic consumption data according to the process characteristics of each sub-process, carrying out data allocation on the fixed input data according to the production duration ratio, and integrating the calculation results of each sub-process to obtain the cost calculation result of the cold-rolled strip steel. According to the method, the unit cost of each process of each coil of steel is off line, the benchmarking cost reduction of different units and specifications is realized, the variety steel research and development progress is accelerated, and data support is provided for production cost reduction and batch production.

The present application relates to a method, apparatus, computer equipment, storage medium and computer program product for optimizing unit combination. The method comprises: obtaining the operating cost data of the power system; the operating cost data comprises unit cost, standby cost and energy storage equipment regeneration cost; determining the SCUC model according to the operating cost data; the SCUC model takes minimizing the total operating cost as the objective function; based on the Benders decomposition model, decomposing the SCUC model into main sub-problems, and solving the main sub-problems to obtain the optimal solution for the joint operation of the units; wherein the main sub-problems comprise the UC main problem, the basic case sub-problem, the fault condition sub-problem and the scenario case sub-problem. The use of this method can effectively improve the optimization efficiency of the safety-constrained unit combination problem.

The present invention provides a greenhouse gas emission estimation method, estimation program, and estimation device that can easily estimate greenhouse gas emissions linked to the final product and the cost associated with that final product. [Solution] The method for estimating greenhouse gas emissions includes the steps of: obtaining unit cost information that associates the unit cost of at least one type of resource material with at least one manufacturing facility used to process the product; obtaining yield information that associates the yield of the product with at least one manufacturing facility; obtaining combination information that associates a combination of greenhouse gas emissions and cost with the unit cost of at least one type of resource material; and estimating greenhouse gas emissions and cost when the product is processed at at least one manufacturing facility using the unit cost information, yield information and combination information.

This invention discloses a method and system for optimizing the configuration of ship electronic spare parts based on time-varying failure rate. The method includes: determining the ship's mission cycle, the configuration quantity of various electronic spare parts, and their unit cost; inputting the ship's mission cycle and the configuration quantity of various electronic spare parts into a spare parts demand model based on time-varying failure rate, and outputting the success probability of each type of electronic spare part; the spare parts demand model based on time-varying failure rate is constructed by combining the Weibull distribution function, the NHPP function, and the Poisson distribution function; constructing a bi-objective optimization configuration problem based on the success probability, configuration quantity, and unit cost; transforming the bi-objective optimization configuration problem into a single-objective optimization configuration problem using the IPM method; and solving the single-objective optimization configuration problem using the ALNS algorithm to obtain the globally optimal ship electronic spare parts configuration scheme. This invention achieves a better trade-off between reliability and cost, resulting in the optimal configuration scheme for ship electronic spare parts.

The embodiment of the invention discloses a differential capacity cost compensation method for coal power units, and relates to the technical field of power capacity cost compensation, and the method comprises the steps: obtaining unit operation parameters and unit cost parameters of each coal power unit in a target region, and the power load data of each user; calculating annual capacity cost based on the obtained parameters; determining the capacity cost of the user side according to the total installed capacity and the annual capacity cost of the coal power unit meeting the capacity cost compensation condition; calculating an average capacity compensation parameter based on the predicted electric quantity demand sum of all users and the user side capacity cost; determining a differentiation coefficient according to the power load data of the user, and adjusting the average capacity compensation parameter to obtain a capacity compensation parameter of the user; and compensating the capacity cost based on the capacity compensation parameter. The method can effectively reflect the actual operation characteristics of different coal power units and the use difference of the user load on the system capacity, and can achieve the precise compensation and reasonable recovery of the capacity value.