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579results about How to "Benefit maximization" patented technology

Power grid safety optimization dispatching method considering demand response

The invention discloses a power grid safety optimization dispatching method considering demand response. The method comprises the following steps: establishing a dynamic excitation compensation mechanism, and carrying out modeling on demand response behaviors of a user according to load shedding and transfer features; establishing a calculation model of power grid reliability index loss-of-load probability and expected energy not supplied; converting a reliability index into an economic index and integrating the index into an objective function, and establishing a day-ahead economic dispatch model with the total operation cost minimum being as an objective; establishing constraint conditions to enable an electric power system to meet system constraints, unit constraints and security constraints; and carrying out solving through calculation software to obtain an optimal day-ahead economic dispatch result. The demand response and reliability index are integrated into day-ahead dispatching of the electric power system, and the optimal dispatching model considering dynamic excitation compensation and expected power failure loss is established, thereby coordinately solving the problem of unit commitment of a generation power side and the problem of supply-demand interaction of a demand side and realizing economy and security of operation of a power grid.
Owner:SOUTHEAST UNIV

New technology for sorting lean hematite and magnetite orecontaining iron carbonate

The invention relates to a new technology for sorting a lean red magnetite ore containing iron carbonate, which is characterized by comprising the following steps of: enriching and discarding tailings by adopting a 'technology for stage grinding and strong magnetic discarding tailings', thereby obtaining a mixed magnetic concentrate; sorting the mixed magnetic concentrate by adopting an 'open-circuit reverse flotation technology with one-stage roughing, one-stage fining and two-stage scavenging', thereby obtaining a high-grade hematite and magnetite concentrate; adopting a 'close-circuit centrifuge technology with one-stage roughing and one-stage fining' for sorting a high iron carbonate ore enriched in mine obtained by adopting the 'open-circuit reverse flotation technology', thereby obtaining a siderite concentrate; feeding the centrifuge tailings into a weak magnetic machine and sorting; and recycling fine fraction magnetic concentrates. The new technology provided by the inventionhas the advantages that the lean hematite and magnetite ore containing iron carbonate is sorted by adopting a 'combined sorting process flow with stage grinding, strong magnetic discarding tailings, reverse flotation-centrifuge', so that the sorting indexes of the whole iron grade of the obtained comprehensive concentrate being more than 65% and the metal recovery rate being more than 65% are achieved and the maximization of utilization benefit of iron ore resources is realized.
Owner:鞍钢集团矿业设计研究院有限公司

Commodity and service online ordering and management Internet platform

The invention aims at providing a commodity and service online ordering and management Internet platform, and the platform comprises a merchant terminal which is used by a merchant for publishing store information, commodity specific information and special offer information, displaying and processing an order; a customer terminal which is used by a customer for meeting a commodity ordering request, and generating an order; and a platform terminal which is used by the merchant for storing, displaying and storing of store information, commodity information and special offer information, displaying the order, storing and tracking the order processing operation of the merchant, supervising and guaranteeing the execution process of the order. The advantages of the platform are that the customer can directly order the commodity and service, published by the merchant of a real store, on the platform, such as a room number and a license plate number, and can order the needed commodity and service at any time; The merchant can directly display and process the order of the customer through the platform. The platform achieves the direct communication between the customer and the merchant, reduces the agent link, reduces the operation cost for the merchant, and brings more benefits to the customer.
Owner:刘翔英 +1

Urban household garbage sorting and charring comprehensive treatment resource recovery method

A urban household garbage sorting and charring comprehensive treatment resource recovery method comprises the first step of garbage sorting treatment, wherein original household garbage is subjected to uniform feeding, manual large garbage sorting, coarse crushing, plate-frame pressure filtering, rolling cylinder screening, full-closed mechanical selecting by winnowing, plate-type magnetic separator treating, eddy current magnetic separator treating and fine crushing process treatment; the second step of garbage drying treatment; the third step of garbage charring treatment, wherein a rotary charring furnace is adopted, and garbage charring is carried out in a normal-pressure low-temperature and low-oxygen atmosphere so that solid carbon can be prepared; the fourth step of coke forming and cooling treatment; the fifth step of bad smell purifying treatment, wherein bad smell generated in a household garbage discharging warehouse and bad smell generated in all treatment process links are collected to a bad smell purifying system through a negative pressure induced draught system; and the sixth step of waste water purifying treatment. The urban household garbage sorting and charring comprehensive treatment resource recovery method is relatively high in automation degree, sorting efficiency and recovery utilization rate and has more sorting functions.
Owner:李新方

Method and system for scheduling network resources based on virtual machine migration

The invention discloses a method for scheduling network resources based on virtual machine migration. The method comprises the following steps of: when the network flow of a computation node is detected to be more than a preset network flow threshold value, evaluating the expected copy finish time of the memory of each virtual machine on the computation node, and evaluating the average network flow of each virtual machine on the computation node in a given period of time; calculating the ratio of the average network flow of each virtual machine to the corresponding expected copy finish time of the memory; determining the migration priority of each virtual machine according to the ratio, wherein the virtual machine with a higher ratio has a higher migration priority, and the virtual machine to be migrated is determined according to the migration priority of each virtual machine; and migrating the virtual machine to be migrated, which is determined on the computation node, to a target computation node. By the method, the network load on the computation node can be reduced, and the actual benefit of migration operation is maximized. The invention also discloses a system for scheduling the network resources based on the virtual machine migration.
Owner:DAWNING CLOUD COMPUTING TECH CO LTD

Energy storage configuration method for coordinating wind electric field to participate one time frequency modulation of electric power system

The invention discloses an energy storage configuration method for coordinating a wind electric field to participate one time frequency modulation of an electric power system, which is characterized by comprising backup proportional wind abandoning method that the wind electric field provides to the electric power system for the backup of one time frequency modulation, determination of effective backup capacity of the wind electric field, an evaluation index of wind abandoning utilization rate when the wind electric field provides one time frequency modulation backup to the electric power system, a control strategy A for coordinating the wind electric field to participate the electric power system one modulation energy storage modulation system, control strategy B for coordinating the wind electric field to participate the one time frequency modulation energy storage system of the electric power system, the energy storage system rated power capacity of the energy storage system and the determination content of the capacity of the rated energy. The invention can reduce the economic loss of the wind electric power field caused by the wind abandoning electric quantity on the premise that the same one time frequency modulation backup is provided, realizes the optimal configuration of the rated power of the energy storage system and the energy capacity, and can maximize the benefit. The invention is scientific, reasonable, good in effect and strong in adaptability.
Owner:STATE GRID LIAONING ELECTRIC POWER CO LTD SHENYANG POWER +2
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