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41 results about "Incremental costs" patented technology

Incremental cost is the amount of money it would cost a company to make an additional unit of product. Companies can use incremental cost analysis to help determine the profitability of their business segments.

Real-time distributed economic dispatching method for power distribution network

The invention related to an economic dispatching method for a power distribution network and especially relates to a real-time distributed economic dispatching method for the power distribution network. According to the invention, the method comprises the steps: taking the minimum power generation cost as an economic dispatching target of a power system, wherein a power generation cost function isa secondary function of generated power; taking an external power grid as a virtual generator, and expressing the cost function through a secondary function, but supposing that the output power of the cost function is zero; taking the incremental cost of each generator set as a consistency variable, and enabling the incremental cost of each generator set to be convergent to a consistency value through a distributed consistency algorithm, thereby obtaining an optimal solution of economic dispatching. According to the invention, the external power grid is equivalent to the virtual generator which participates in the economic dispatching, and the method takes the incremental cost as the consistency variable. Only the active power exchanged between the power distribution network and the external power grid needs to be measured, and there is no need of other global information, thereby overcoming a difficulty that a conventional distributed economic dispatching algorithm needs to obtain the system power difference or total load.
Owner:WUHAN UNIV

Benchmarking of computer and network support services

A process and computer program product for adjusting a price derived from a benchmark computer service model to a price of a computer service contract, or vice versa. Differences in service between the benchmark computer service model and the computer service contract are determined. Then, a price adjustment due to the differences is determined. The price adjustment may be based on incremental cost of labor and tools to account for the differences between the benchmark computer service and the computer service contract. Then, the price of the benchmark computer service model is compared to the price of the computer service contract with the price adjustment. The benchmark computer service model and the computer service contract can both include computer program support services, computer hardware support services, a help desk call center service and/or network maintenance services. The differences between the benchmark computer service and the computer service contract may comprise a difference in type of a computer service, a quantity of a computer service, quality of a computer service, and/or complexity of a computer service. The differences may comprise support for a customer's computer hardware or computer programs which is more difficult to support than computer hardware or computer programs specified in the benchmark service model. The differences may comprise a service constraint in the service contract which is not present in the benchmark service model.
Owner:IBM CORP

Energy internet real-time dynamic power distribution method based on two-layer consistency algorithm

The invention relates to an energy internet real-time dynamic power distribution method based on a two-layer consistency algorithm. The two-layer consistency theory is introduced to construct an energy internet real-time power distribution frame with the island energy internet acting as the research object. The energy internet is divided into multiple energy local area networks, and each energy local area network and the incremental cost of each distributed power supply in the energy local area network act as the consistency state variables to design the consistency power distribution algorithm so that each energy local area network is enabled to equally bear the power imbalance of the energy internet system according its own condition, each distributed power supply is further enabled to equally bear the power imbalance of the energy local area network according its own condition and thus the objective of cost reduction can be achieved. The data communication amount is reduced throughinformation interaction between the adjacent intelligent agents so that optimization of the power generation cost of the single energy local area network can be realized, and optimization of the powergeneration cost of the whole energy internet can be realized.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER

Power terminal communication access network and optimization method

The invention discloses a power terminal communication access network and an optimization method, which aim to achieve rapid optimization, reduce cost and solve the problem of difficulty in planning of the power terminal communication access network. The power terminal communication access network comprises a first-layer Ethernet and second-layer Ethernets, wherein the first-layer Ethernet comprises a high-voltage substation node and all sub-nodes of the high-voltage substation node in a medium-voltage power distribution network, the first-layer Ethernet is an annular network topology, the number of the second-layer Ethernets is the same as the number of 10kV transformer nodes, the 10kv transformer nodes are intersection nodes of the first-layer Ethernet and the second-layer Ethernets, the second-layer Ethernets are annular and tree-shaped network topologies, the power terminal communication access network conforms to a feasible solution boundary condition, and the incremental cost is minimum. The optimization method of the power terminal communication access network relates to an estimation function, a mating algorithm and a variation algorithm in a genetic algorithm framework. By the power terminal communication access network, the efficiency of network planning and optimization is greatly improved, and the algorithm complexity is reduced.
Owner:STATE GRID LIAONING ELECTRIC POWER RES INST +5

Benchmarking of Computer and Network Support Services

A process and computer program product for adjusting a price derived from a benchmark computer service model to a price of a computer service contract, or vice versa. Differences in service between the benchmark computer service model and the computer service contract are determined. Then, a price adjustment due to the differences is determined. The price adjustment may be based on incremental cost of labor and tools to account for the differences between the benchmark computer service and the computer service contract. Then, the price of the benchmark computer service model is compared to the price of the computer service contract with the price adjustment. The benchmark computer service model and the computer service contract can both include computer program support services, computer hardware support services, a help desk call center service and / or network maintenance services. The differences between the benchmark computer service and the computer service contract may comprise a difference in type of a computer service, a quantity of a computer service, quality of a computer service, and / or complexity of a computer service. The differences may comprise support for a customer's computer hardware or computer programs which is more difficult to support than computer hardware or computer programs specified in the benchmark service model. The differences may comprise a service constraint in the service contract which is not present in the benchmark service model.
Owner:BURCHFIELD NANCY L +1
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