33results about How to "Improve load utilization" patented technology

The invention discloses a V2G technology-based power distribution scheduling control method for electric vehicles. According to the power distribution scheduling control method, besides that the influences of charge and discharge power of the electric vehicles are considered, the limiting factors of the capacity of a power distribution network, technical conditions of the electric vehicles and the like are also considered; the traffic factors of drive routes, charging/discharging access and the like of the electric vehicles are further considered; optimized charging and discharging scheduling strategies, for the electric vehicles, conforming to the reality are comprehensively determined; charging and discharging of the electric vehicles are controlled by a V2G system; and the power distribution scheduling control on the electric vehicles is achieved. The embodiment and related data show that according to the V2G technology-based power distribution scheduling control method for the electric vehicles, the negative effects on the system reliability due to the fact that the electric vehicles are accessed on a large scale can be effectively improved; the load utilization rate of the power distribution network is improved; the load peak and off-peak difference of the power distribution network is reduced; and improvement of power distribution scheduling economical efficiency of the electric vehicle and power distribution network operation economical efficiency is helped.

The invention discloses a method and device for determining the temperature of cable group cable cores based on distributed optical fiber temperature measurement, and an installation method of a distributed optical fiber temperature measuring device. The method for determining the temperature of a cable group comprises the steps of measuring parameters of the environment where the cable group is laid, and parameters of cables in the cable group; establishing a cable group model according to the parameters of the environment and the parameters of the cables; reading a current of a conductor of the cable group, and according to the cable group model, conducting simulation computation on the skin temperature of the cables to obtain the estimated skin temperature Tc of the first cables in the cable group; measuring the actual skin temperature Tb of the first cables in the cable group in the axial direction; according to the estimated skin temperature Tc and the actual skin temperature Tb, computing a conversion coefficient alpha; according to the conversion coefficient alpha, correcting the estimated skin temperature of the cables, and computing actual skin temperature of each cable in the cable group. According to the method and device, the computational accuracy of the temperature of the cable group can be improved, and the temperature computation range of the cable group can be increased.

The invention discloses a multi-stage vehicle-cargo matching method considering three-dimensional loading constraint which aims to automatically and intelligently distribute inter-city orders in the field of logistics. The invention provides a feasible scheme which is divided into four stages to match the vehicles and the cargos, wherein the first stage is a loading stage, and each client is boxedindependently, so that the client requirement is replaced by the carriage occupation length; the second stage is a client request merging stage, the similarity between the clients with the strip filling rate not reaching the threshold value is calculated, and the two clients with the large similarity are merged into a client group; the third stage is a vehicle path optimization stage, the lengthof the carriage occupied by each client or after the client assembles the box serves as the requirement of each client, and vehicle path optimization is carried out; and the fourth stage is an in-pathloading integration stage, boxing is carried out according to the reverse sequence of the optimized paths, and therefore a final boxing and path scheme is obtained. According to the present invention, the carriage loading utilization rate and the overall loading rate of the vehicle type are increased.

The invention discloses a multifunctional coil steel transportation vehicle special for railways. The vehicle comprises a rectangular base frame, a steering frame, a vehicle hook cushioning device, a brake device, a staff protecting device, a fixed supporting device, a limit device and at least 2 adjustable supporting device. The vehicle space utilization rate and vehicle load capacity utilization rate are increased; vehicle scheduling operation and observation in vehicle operation are facilitated for staffs, and safety and comfort for the staffs during operation are improved; high-temperature coil steels can be loaded and transported and is prevented from contamination; the general structure and configuration of the existing railway flatcar are adopted, vehicle maintenance and repairing are facilitated, maintenance cost is reduced, and the vehicle can be widely applied to coil steel transportation in a steel factory and between the factory and a port.

The invention discloses a demand response implementation effect evaluation method considering the secondary peak effect of load, which includes introducing a rebound average load and constructing a multi-level evaluation index system for the implementation effect of demand response; according to the constructed multi-level evaluation index system, through attribute intervals The identification method evaluates the implementation effect of user-side demand response; according to the evaluation results, the user-side demand allocation plan can promote the ideal response of users to a greater extent, improve load utilization, and enhance the safety margin of power grid operation during peak hours , with good prospects.

The invention discloses a Handle recognition system analysis load balancing method based on a neural network. The method comprises the steps of establishing an enterprise-server mapping table, recording time sequence data, training and generating a load utilization rate prediction model and task load prediction, and updating the enterprise-server mapping table according to a prediction result. According to the invention, firstly, the enterprise-server mapping table is established to accelerate the task response speed and improve the task processing efficiency, the time sequence data and the BP neural network are used to generate the load utilization rate prediction model and improve the prediction accuracy, then the task quantity is predicted through the Elman neural network. the task quantity is input into a load utilization rate prediction model to estimate the load change of each server, and finally, a load utilization rate piecewise function and a strategy of dynamically modifying a mapping table are combined, so that the server cluster can well cope with the Handle recognition system analysis task, the utilization rate and the load balance degree of the server cluster are improved, and the time for executing the task is shortened.

The invention provides a DC pile charging power flexible distribution system, which comprises a plurality of charging power module units, a plurality of charging guns, a plurality of switch switchingunits and a switch control unit, and is characterized in that the charging power module units are connected with the charging guns through the switch switching units, and the switch control unit is connected with the switch switching units; and the switch control unit flexibly controls the on-off state of the switch switching units according to the obtained power demand. The invention relates to aDC pile charging power flexible distribution method. The remaining power is borrowed and allocated when other charging guns are idle or need to be small, the load efficiency of the charging pile is improved, the load utilization rate of the charging station is increased, the bicycle charging time is shortened, and the unit time turnover rate of the charging station is increased.

The invention discloses a method for improving the charging efficiency under a complex power supply condition of a charging station transformer, and the method comprises the following steps: S1, obtaining a load of a non-charging region through a charging pile management platform, and calculating the residual load of a pile under the current platform according to the capacity of the transformer; and S2, judging the calculated residual load, if the residual load is smaller than 0, enabling the platform to broadcast and issue the charging pile limited power, and otherwise, enabling the platform to broadcast and issue the charging pile lifting power. According to the method for improving the charging efficiency under the complex power supply condition of the charging station transformer, idle loads of other lines of the transformer are fully utilized, the maximum output power of the charging pile is adjusted in real time through the management platform, a specially-assigned person is not needed for uninterrupted continuous management while it is guaranteed that a user can conduct stable and continuous charging at the normal charging speed, and faults or fire disasters caused by long-time overload of the transformer due to negligence of personnel can be avoided.

The invention discloses a fuel gas heat pump system for refrigeration, heating and supplying hot water, comprising fume heat exchanger. A fuel gas heat pump system with compact structure of the invention for refrigeration, refrigeration, heating and supplying hot water, is convenient to take management and safety measures for the whole system, meanwhile, can supply hot water all year round and save energy, in winter, using air and engine, and supplying fuel gas as heat source, avoiding air frostiness on the heat exchanger surface in cold weather and improving heating ratio by raising air source temperature; load utilization ratio of the whole system has been raised by adding supplying heat combustor, and can supply hot water the whole year.

The invention discloses a method for perfecting a personal shopping function through a convenient purchase and transporting mechanical mechanism product method, a product innovation design work, and an applicable structure, and relates to common purchase and transporting tool equipment and the like, wherein the common purchase and transporting tool equipment is a newly-functional convenient carrying tool which is made of a combined structure of a purchase and transporting bicycle and split storage rack (bicycle) thereof, serves individual market purchase and transporting, and can be commonly used by non-professionals.

The invention relates to a composite material spring, and particularly relates to an ultra-light composite material spring with a bent rod structure and a manufacturing method thereof. The composite material spring is characterized in that the spring structure comprises an upper panel, a lower panel and spring wires, wherein one side, facing the spring wires, of each panel is provided with a holeor a groove into which the spring wires can be inserted to play a role in fixing; the spring wires are made of a continuous fiber composite material; each spring wire has a C-shaped slender rod structure and comprises straight sections and a bent section along the length direction; the two ends of each spring wire are the straight sections, and the middle part of each spring wire is the bent section; the bent section is used for deforming and providing a reacting force; the extending directions of the straight sections at the two ends are the same as the fiber length directions of the spring wires; and the number of the spring wires in the spring is more than 3. The bearing direction of the composite material spring is basically the same as the fiber directions of the spring wires, so thatthe bearing force of fibers is fully utilized, the load utilization rate of the material is increased, and the weight of the spring can be reduced to a great extent.