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53 results about "Performance rate" patented technology

Power grid active real-time control method considering medium and long term transaction and spot transaction constraints

ActiveCN108520315ATo achieve overall coordinationIncreased transaction powerForecastingSingle network parallel feeding arrangementsElectric power systemElectricity market
The invention discloses a power grid active real-time control method considering medium and long term transaction and spot transaction constraints, and belongs to the technical field of electric powersystem operation and control. Aiming at the grid-connected active real-time control of a power plant in an electric power market environment with coexistence of medium and long term transactions andspot transactions, according to the method, a spot transaction electric quantity execution rate index is adjusted through introduction of a parameter less than 1 by regarding a ratio of the transaction electric quantity completion progress to the transaction time progress as a transaction electric quantity execution rate index, the grid-connected active adjusting speed and the adjustable space ofthe power plant, electric power balance, power transmission channel capability, and frequency modulation and peak regulation constraints are considered, a power grid active control optimization modelregarding a minimum grid-connected active sum of the power plant which regards a product of the medium and long term transaction electric quantity execution rate index and the spot transaction electric quantity execution rate index as the weight as the target is established, and power grid active control which simultaneously satisfies requirements of medium and long term transaction constraints and spot transaction constraints is realized.
Owner:NARI TECH CO LTD +3

Power plant grid-connection active power real time control method taking electric quantity transaction plan into consideration

ActiveCN106655279AFulfill the execution requirementsLow comprehensive cost of economy and environmental protectionSingle network parallel feeding arrangementsNew energyElectric power system
The invention discloses a power plant grid-connection active power real time control method taking an electric quantity transaction plan into consideration, and belongs to the electric power system operation and control field. A ratio between a power plant electric quantity transaction completion rate and a transaction plan implementation progress is taken as an electric quantity transaction implementation rate index, a power plant low in electric quantity transaction implementation rate index, an intermittent new energy power station high in grid-connection prediction performance index, a power plant high in grid-connection active control performance index and an economical and environment-friendly power plant low in comprehensive cost per generating capacity get priority during grid-connection active real-time control, the above factors are taken as a target function, and a linear plan model considering safety and stability, active standby, power plant active adjusting capability, a power plant active plan, a power grid external power transmission channel active plan and a power balance constraint requirement that are related to electric quantity transaction plan implementation is built. The method of the invention helps to improve practicality of power plant grid-connection active power real time control.
Owner:NARI TECH CO LTD +4

Method for reducing converter hot metal single consumption

The present invention provides a method for reducing converter hot metal single consumption. According to the present invention, the following conditions are adopted as the standard conditions: the Si content in the hot metal is more than or equal to 0.4%, the actual hot metal temperature T is more than or equal to 1380 DEG C; each ton of the iron is added with 180-200 kg of scrap steel; when theT is more than or equal to 1320 DEG C and less than 1380 DEG C, the treatment of silicon preparing is firstly performed, then the treatment of carbon preparing is performed, and the scrap steel is added according to the ratio when the ratio of the hot metal meets the standard conditions; when the T is more than or equal to 1280 DEG C and less than 1320 DEG C, each ton of the iron is added with 150-175 kg of the scrap steel after the ratio of the hot metal meets the standard conditions by the silicon preparing treatment and the carbon preparing treatment,. With the present invention, the combined temperature compensation manner of the ferrosilicon and the coke is adopted, such that the converter carbon temperature at the end point is basically coordinated so as to ensure the stability of the final quality of the hot metal; the use amount of the scrap steel is 20% of the total amount of the converter hot metal, such that the hot metal single consumption of the converter can be substantially reduced, the production cost is reduced when the price of the scrap steel is less than the price of the hot metal; the resource shortage can be effectively released during the hot metal shortage process, the production scale and the performance rate of the contract can be ensured.
Owner:ANGANG STEEL CO LTD

Device control method and apparatus

InactiveCN106452994AImprove effective execution rateAvoid timeout conditionsData switching by path configurationTTEthernetThe Internet
The embodiment of the invention discloses a device control method and apparatus. The method comprises the following steps: sending a connection switching request to a server according to a user trigger operation, so that the server sends a connection switching instruction to a device according to the connection switching request; after acknowledgement response corresponding to the connection switching request sent by the server is received, establishing a local area network connection between an intelligent terminal and the device according to the connection switching instruction; based on the local area network connection, sending a set control instruction to the device by the intelligent terminal, so that the intelligent terminal controls the device. After the server sends the connection switching request, the local area network connection between the intelligent terminal and the device is established, therefore the communication speed is improved, the communication between the intelligent terminal and the device is not affected by the network speed of the Internet, and the communication timeout situation is avoided; and meanwhile, the control of the intelligent terminal to the device is realized in a local area network, thereby improving the effective execution rate of the instruction and avoiding the identification error situation caused by inaccurate pickup during voice control in a noisy environment.
Owner:BEIJING INTELLIGENT STEWARD CO LTD

Mining geological logging data three dimensional processing method

InactiveCN106530396AImprove accuracyImprove design execution rate3D modellingEntity modelComputer science
The invention discloses a mining geological logging data three dimensional processing method. The mining geological logging data three dimensional processing method includes the following steps: 1) geological logging; 2) establishing a three dimensional entity model; and 3) estimating the grade of ore blocks. The mining geological logging data three dimensional processing method relates to the geological logging technical flow, the three dimensional entity modeling technical flow and the ore block grade estimation technical flow, thus having comprehensiveness and scientificity. The mining geological logging data three dimensional processing method can accurately acquire the truth of the ore body, the constructed space occurrence state, the grade distribution, and the ore rock boundary, and improves the accuracy of the ore body estimation result, achieves the aim of improving the execution rate of mining and planning and the execution rate of individual design and reducing the loss dilution rate, and has remarkable effect on reducing the loss dilution rate, wherein the loss dilution rate is respectively reduced by 0.47% and 1.11%; and at the same time the execution rate of mining and planning, and the execution rate of individual design are improved to 98% from 85%.
Owner:CHINA GOLD INNER MONGOLIA MINING
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