1274results about How to "Guaranteed economy" patented technology

The invention discloses an automatic generation method used for a single line diagram of a distribution network and based on topological hierarchy. The method comprises the following steps: deleting related equipment in a topological structure of the distribution network, and simplifying the topological structure of the distribution network; acquiring key nodes of the topological structure of the distribution network, and generating a main framework of the topological structure of the distribution network; arranging the positions of the key nodes based on a gravitation-repulsion model, and obtaining a skeletal structure based on the gravitation-repulsion; describing the topological structure of the distribution network through an outgoing line-trunk line-T-shaped key node-branch line model of a power station; finishing the arrangement and the automatic mapping of the equipment in the power station on the basis of the topological structure of the equipment in the power station; and performing routing mapping without overlap or intersection on decibels of the trunk line and the branch line respectively. The automatic generation method achieves automatic generation of the single line diagram of the distribution network above a certain scale, and simultaneously, the generated single line diagram is clearer and more attractive through the routing algorithm without overlap or intersection.

The invention discloses a thermoelectric power station automatic control system based on artificial intelligence. It includes dispersible control system, virtual DCS simulation system, program controlling system, monitoring information system and malfunction diagnosing and optimizing controlling system; the dispersible control system is connected with the virtual DCS simulation system and program controlling system; the program controlling system process the operating parameters of every machine group transmitted by dispersible control system, and at the same time transmits data to monitoring information system to display, then transmits malfunction diagnosing and optimizing controlling system to have equipment state monitoring, malfunction diagnosing and forewarns. The invention gathers automatic control, optimizing operation, security monitoring and malfunction diagnosing and forecast. It can improves the automated management level of the thermoelectric power station operation, and enhances enterprises' benefit. It has great economic and applied value in the producing process automatic control of the thermoelectric power station.

The invention provides an intelligent prescription auditing system and an intelligent prescription auditing method. The system is provided with an input module, various databases, a prescription auditing module, a dispensing explaining module, and an output module. The method is implemented as follows: a doctor refines a prescription through the input module and then sends the prescription to the prescription auditing module; after receiving the prescription, the pharmacist reviews writing rules, indications, dosage, incompatibility and drug interactions of the prescription according to various databases; the doctor returns checking comments of the disqualified prescription to the prescription input module so as to modify or re-issue the prescription or give suggestions, and sends the qualified prescription to the dispensing explaining module; after receiving the prescription, an allocation doctor allocates medicines; after receiving the prescription, a dispensing doctor generates prescription information, a medication explaining matter and the like of dispensing explaining, which are printed by the output module and then explained to a patient. The invention provides a medicine dispensing control system and a medicine dispensing control method which are capable of effectively avoiding great prescription, irregular prescription, unsuitable medication for the prescription and unconventional prescription.

The present invention relates to an encoding method and an decoding method for performing information storage by means of DNA. Different from a conventional computer magnetic medium, an information write-in mode of DNA storage is that after information is encoded, an oligonucleotide chain with a certain length is synthesized by utilizing an oligonucleotide chain synthesis technology and the synthesized oligonucleotide chain is stored in a powder form; and a reading technology of DNA storage is that the oligonucleotide chain is sequenced by utilizing a high-throughput sequencing technology and after being spliced, sequenced fragments are transcoded, so that an initial computer multimedia file can be restored. Due to the characteristics of the DNA oligonucleotide chain, in the design of an encoding mode, a random error possibly existing in the DNA synthesis and sequencing process can be taken into full consideration, and error authentication and multiple cover segment are performed on the DNA fragments. The encoding method for a DNA storage technology, which is constructed by the present invention, is simple, convenient and easy to operate and can be applied to transform the computer multimedia files in various formats into DNA sequences so as to perform information storage.

The invention discloses a two-stage optimized dispatching method for a virtual power plant. The two-stage optimized dispatching method comprises the steps of acquiring the power generation and power utilization information of an internal power source of the virtual power plant, and simultaneously, acquiring excitation information from a power company or a power market outside the virtual power plant, constructing an economical dispatching model, substituting the obtained information in the economical dispatching model and carrying out optimization solution, constructing a safe dispatching model, substituting network constraint information and a obtained dispatching scheme into the safe dispatching mode, and solving by a particle swarm optimization algorithm to obtain the final dispatching scheme. The two-stage optimized dispatching method for the virtual power plant is capable of realizing effective management on a large-scale distributed power source, an energy storage device, controllable load and the like, and a large-scale complex power dispatching and planning problem is decomposed into two dispatching subproblems, namely, an economic dispatching problem and a safe dispatching problem, and in addition, the complexity of calculation is reduced and the calculation time is shortened while the economical efficiency and the reliability of the dispatching scheme are guaranteed.

The invention provides an Internet-based intelligent mobile charging system and method. The system comprises a breakdown van APP, a charging breakdown van, a fault car APP and a rescue platform, wherein the breakdown van APP comprises a user module, an order module, a monitoring module and a communication module, the charging breakdown van comprises a controller, a GPS device, a DC charger, an AC charger and a metering module, the fault car APP comprises a user module, an order module, a payment module and a communication module, and the rescue platform comprises an access module, an order executing module, a vehicle screening module, a breakdown van monitoring module, a bill management module and a user certification module. The Internet-based intelligent mobile charging system can fulfill the one-key rescue function, improve the rescue speed, enhance vehicle dispatching accuracy and efficiency, completely avoid mandatory consumption and mandatory service, improve the transparency and timeliness of the rescue service, and improve service experience and service quality.

The invention relates to a coal-fired power plant coal yard refined management system and a control method of the coal-fired power plant coal yard refined management system. The coal-fired power plant coal yard refined management system is characterized by comprising a laser disc coal instrument, an intelligent temperature monitoring meter, a metering device, a stacker-reclaimer, a data acquisition unit, a controller, a data server, an application server and a computer client side. The application server comprises a coal database management module, a real-time stock management module, a coal storage management module and a heat loss evaluation and control module. The control method is characterized by including the following steps that coal pile outline data points and digital signs in a coal yard field are acquired according to the laser disc coal instrument, and three-dimensional reconstruction of coal piles is completed based on a VC++ and OpenGL platform; when coal is transported to a factory, information is input to the coal database management module through an input port in the computer client side. According to the coal-fired power plant coal yard refined management system and the control method, the informatization and intelligentization method is adopted, information is quickly and accurately transmitted, and coal heat loss is reduced.

The present invention provides a multi-population genetic particle swarm optimization method containing the micro-grid capacity configuration of electric automobiles. The method realizes the energy storage function of an electric automobile on the premise that the electricity demand of the electric automobile can be met. According to the technical scheme of the invention, a multi-target model, with the annual cost, the annual loss of load probability and the peak-valley difference of a load curve as targets, is proposed. Based on the multi-population genetic particle swarm algorithm, a target function is solved out. In this way, the optimal capacity of each unit in a micro-grid system can be obtained precisely. On the premise that the system reliability is ensured and the load fluctuation is stabilized and inhibited, a higher economic benefit is obtained. Through optimizing the micro-grid system containing the electric automobile, the mobile energy-storage device of the electric automobile is utilized to realize the peak-load shifting purpose on the basis that the reliability and the economy of the system are guaranteed. Meanwhile, the peak-valley difference of the system curve is reduced. Not only is the stability of the power system improved, but also the economic benefit is higher. Therefore, the popularization and the utilization of a cleaning device of the electric automobile are facilitated.

The invention discloses a terminal connected with a plurality of wireless networks simultaneously and a switching method for the terminal. The method comprises the steps of polling two or more networks which are connected simultaneously, and sending network conditions to a parameter calculation module; analyzing data transmitted through all working modules and transmitting analysis results to a network management module; determining whether switching is needed according to the analysis results fed back by the parameter calculation module; performing corresponding switching according to determination results. By means of the terminal and the switching method, appropriate access networks bear appropriate users and services, the reasonable utilization of the network resources is guaranteed, all types of the networks can coordinate and cooperate, and appropriate access networks are selected for users automatically.

The invention relates to the field of automobile power distribution, in particular to a distribution control method of driving torque of front and rear shafts of a four-wheel electric automobile. Themethod includes the following steps of 1, according to an accelerator pedal and an automobile speed value, calculating a driver total torque instruction Td; 2, on the basis of an optimal system efficiency principle, conducting initial torque distribution to obtain initial driving torque Tdf0 of the front shaft and initial driving torque Tdr0 of the rear shaft; 3, estimating an available pavement attachment coefficient to obtain an attachment coefficient mu; 4, according to the attachment coefficient mu, calculating a driving torque limit value Tufmax of the front shaft and a driving torque limit value Turmax of the rear shaft; 5, according to the driving torque limit value Tufmax of the front shaft and the driving torque limit value Turmax of the rear shaft, adjusting distribution of the initial torque of the front and rear shafts; 6, calculating a motor torque instruction Tmf of the front shaft and a motor torque instruction Tmr of the rear shaft separately, calculating the optimal driving power limit values of the front and rear shafts by identifying the pavement attachment coefficient in real time, and according to the instructions above, conducting shift distribution on the driving torque of the front and rear shafts. Therefore, the optimal power performance is achieved, and wheels can be prevented from sliding and rotating in an initiative mode.

The invention relates to a coordinative optimization unit combination method of energy. The energy comprises wind power, thermal power and pumped storage energy. The coordinative optimization unit combination method of the energy includes following steps: confirming a wind power output confidence interval; confirming running parameters and coal consumption characteristics of a thermal power generating unit and running parameters and running characteristics of a pumped energy storage unit; confirming combination object functions and constraint conditions of a wind power, thermal power and pumped storage energy joint optimization unit; confirming mixed integer nonlinear programming problems; confirming a starting and stopping plan of the wind power, thermal power and pumped storage energy joint optimization unit in future 24 hours. The coordinative optimization unit combination method of the energy improves unit combination reliability, guarantees that a system has enough regulation ability in real-time running so as to balance power imbalance caused by power fluctuation of wind, promotes consumption and absorption of the wind power, achieves coordinative optimization running of the multivariate energy, and thereby guarantees safety and economical efficiency of running of a power grid.

The invention relates to a hospital medication management system with the medication safety monitoring and intervening functions. The hospital medication management system with the medication safety monitoring and intervening functions is composed of a medication safety monitoring system and an early informatization intervening system. The computer database technology and other technologies are adopted for the medication safety monitoring system. According to the professional examination principle in the medicine science and the pharmaceutical science, with the specialized knowledge in the medicine science and the pharmaceutical science as standards, relevant medicine data information can be provided when doctor's advice is entered and examination of drug allergy histories, drug interactions, contraindications, side effects, external injection medicine compatibility and the like is performed on the doctor's advice to assist a doctor in correctly screening medicines and determining the doctor's advice, a prompt and an alarm can be given timely when problems are found, and thus the possibility of errors is reduced.

The invention discloses a vibration fault diagnosis method of a wind generating set. A vibration sensor collects a vibration fault signal of the wind generating set; a variation modal method is used to extract fault characteristic information, and further extracts a fault characteristic vector via normalization; and the fault characteristic vector is input to a model of a genetic algorithm optimized support vector machine, and fault identification and diagnosis are realized. The method is suitable for fault diagnosis and identification of the wind generating set, the diagnosis precision is higher, timely and reliable maintenance suggests can be provided for maintenance staff of the set, and unnecessary economic loss is reduced.

The invention discloses an auxiliary analyzing method for day-ahead scheduling-plan optimization in the mode of wind-fire coordinated scheduling, and aims at minimizing the minimum electricity-generating cost of a system, and factors, such as a connecting-line plan, a spare plan, a unit depth-adjusting peak and the like are comprehensively considered under the circumstance that the wind abandonment of an electric network possibly occurs, so that the electric network is ensured to accept wind electricity as much as possible, the utilization ratio of intermittent-type energy sources is improved, and the economic benefit is improved. Meanwhile, the method has the characteristics of low calculating strength and strong adaptability and is more suitable for being popularized and applied to scheduling mechanisms with larger wind-electricity accessing power in China.

The invention relates to a vibration fault diagnosis method of a hydroelectric generating set. The method comprises the steps of: firstly, carrying out denoising processing on collected original vibration signals by utilizing a random resonance technology; secondly, carrying out characteristic vector extraction on the vibration signals after the denoising by utilizing a multi-dimensional permutation entropy technology; thirdly, establishing fault diagnosis models of optimized support vector machine based on an improved particle swarm algorithm; fourthly, inputting extracted characteristic vectors into the models of the models of optimized support vector machine based on the improved particle swarm algorithm for fault diagnosis. The method is applicable to the vibration fault diagnosis of the hydroelectric generating set, the diagnosis result is high in precision, the fault type of the generating set can be relatively accurately diagnosed, the reliable diagnosis result is provided to operation maintenance personnel of the generation set, the maintenance personnel can process faults timely and rapidly, and the safety and the economic performance of the operation of the generating set are ensured.

The invention discloses an AC electrified railway traction in-phase power supply device based on a YNd11 connection transformer, the traction transformer of the device is a three-phase transformer (T1) connected in YNd11, and the three primary sides of the transformer (T1) in a YN connection The three phases A, B, and C are connected to the high-voltage public power grid, and the low-voltage side terminals (a, b, c) of the transformer are connected to a power flow controller (IC), and the terminals a and b are connected to the electrified railway catenary (TR) . The device can realize the same-phase power supply for the entire railway line without phase separation, and the power supply voltage is stable, ensuring the high-speed and heavy-load operation of the locomotive; at the same time, the device can eliminate the negative sequence, reactive power and harmonics of the railway traction load on the electric energy of the public grid impact, low cost, and easy implementation.

The invention discloses an active regeneration grading control method for a particle trap. The active regeneration grading control method aims to acquire the real-time carbon loading amount and temperatures of the particle trap. According to the carbon loading amount, a plurality of carbon loading limit values are determined, a plurality of temperature limit values are determined according to thetemperatures, the real-time carbon loading amount and the carbon loading amount limit values of the particle trap are compared, the real-time particle trap temperatures and the temperature limit values are compared, an active regeneration mode is determined, and the active regeneration mode is one or a combination containing more than one of the conditions that an engine is controlled to defer theignition angle, the air-fuel ratio becomes lean, and the idle speed is increased. According to the active regeneration grading control method for the particle trap, the mode of active regeneration isdetermined according to the regions where different carbon loading amount and the temperatures of the particle trap are located and the marking of the region, so that the carbon deposition is effectively removed in time when the carbon loading amount is too high, and the exhaust back pressure is reduced.

The present invention relates to a safe operation and prevention control technique of an active distribution network, wherein preventive control is performed through optimizing a network structure for satisfying a safe margin requirement in operation of the distribution network, thereby effectively improving operation reliability of the distribution network; and simultaneously operation and short-term planning of the distribution network are guided for realizing higher economic benefit and social benefit. For this purpose, the technical solution adopted in the active reconfiguration strategy of the invention is characterized in that the active reconfiguration strategy of the distribution network and the preventing control method comprise the steps of: firstly, establishing a maximal power supply capability evaluating index which is adapted for the active distribution network; when the maximal power supply capability index of the distribution network is lower than a system safe guard line, performing active reconfiguration of the distribution network for achieving multiple targets of improving the maximal power supply capability index and minimizing number of times of operating a network reconfiguration switch; and if the maximal power supply capability index of the distribution network in the current operation manner is lower than a preset safe guard line, starting an active reconfiguration module for performing network optimizing reconfiguration. The active reconfiguration strategy of the distribution network and the preventing control method according to the invention are mainly applied for safe operation and preventing control of the distribution network.

The invention provides a self-adaptive cruising longitudinal adjustment control method and system of a vehicle. The method includes the steps of periodically obtaining the target acceleration and actual acceleration of the vehicle according to a preset period, calculating the acceleration difference value between the target acceleration and the actual acceleration, calculating the original outputtorque of a proportional integer (PI) controller according to the acceleration difference value, conducting gradient limiting treatment and filtering treatment on the original output torque to obtainthe expected output torque, and determining the target torque for being inputted to a motor controller and the target hydraulic pressure intensity for being input to a brake controller according to the expected output torque and the maximum recovery torque of the vehicle. According to the method, by introducing the variable-parameter control and the gradient limiting treatment and filtering treatment, the riding comfort of the vehicle is ensured; motor recovery is conducted as much as possible when the capacity of a motor system is sufficient, compensation is conducted through hydraulic brakewhen the capacity of a motor is insufficient, and economy is ensured.

The invention discloses a surrounding rock plastic zone size-based quantitative roadway support design method. The method comprises the following steps of: 1, carrying out calculation to determine a size of a radius R of a roadway surrounding rock plastic zone; 2, classifying roadway surrounding rocks according to the calculation result; 3, carrying out targeted support parameter design on different types of surrounding rocks according to the roadway surrounding rock classification result; and 4, modifying and adjusting support parameters according to on-site monitoring feedback information. According to the method, support parameters designed on the basis of plastic zone sizes are scientific and reasonable, and roadway surrounding rock classification is carried out by taking plastic zoneradius sizes as main indexes, so that targeted support parameter design is carried out on different types of surrounding rocks so as to ensure the scientificity and economy of roadway support design.For roadway support, the method is capable of playing a part of preventing roadways from roof fall accidents.

The invention provides a centralized intelligent dispatching method for charging a plug-in hybrid electric vehicle (PHEV), which belongs to the research field of power system demand side response and is especially suitable for a plug-in hybrid electric vehicle (PHEV) of peak load regulation. The invention is established on the basis of a dynamic estimation interpolation concept, and mainly comprises the following parts: real-time information extraction, PHEV dynamic cataloging, load per-unit transformation, boundary condition detection, singular load analysis, load estimation interpolation, load index evaluation and charging cost calculation. The invention can dynamically dispatch the charging time periods of the PHEV, thereby effectively reducing the risk and hidden danger which are brought by the load singularity of the grid side, indirectly lowering the investment into newly arranged generating equipment at the grid side and saving the charging cost at the user side, and realizing the purpose of benefiting both the grid side and the user side.

The invention discloses a process for preparing copper cladding aluminum or copper cladding wire of aluminum magnesium alloy, which utilizes a continuous striking-wire copper plating pipeline of being in series connection with a plurality of lengthening electric plating aluminum-magnesium parts plating groove, sets out line uninterruptedly between adjacent plating grooves, and arranges a transiting water ditch between front groove and rear groove which can avoid wire to contact with air to generate oxide coating when changing the grooves. A problem of burning wire can be resolved by adjusting main plating current to about 300 A before having to shutdown in short time. Simultaneously, the invention employs technique of thickening dip galvanized coating and wiping off zinc cover of the zinc dipping by pickling to overcome the main difficulty of utilizing electric plating method to produce copper cladding aluminum wire or copper cladding wire of aluminum magnesium alloy. Compared with coating method, the invention has the advantages of great binding force between metals, high concentricity of copper layer and core wire, low production cost on producing high tensile strength and high stretch rate production, low reject rate, low product specific gravity and the like, and is a good method for producing copper cladding aluminum wire and copper cladding wire of aluminum magnesium alloy by the electroplating method.

The invention provides a microgrid multi-time scale energy management method based on the demand side response, which comprises the steps of S1, establishing an interruptible load model; S2, establishing a multi-energy interaction mechanism; S3, determining an objective function and constraint conditions of a day-ahead scheduling stage; S4, establishing a transferable load model; S5, establishinga penalty function for energy storage of a storage battery; S6, determining an objective function and constraint conditions of an intra-day scheduling stage; S7, correcting the day-ahead scheduling stage plan according to an output plan value of each energy source of the day-ahead scheduling stage; S8, establishing a closed-loop control system; S9, determining an objective function and constraintconditions of a real-time scheduling stage; S10, carrying out real-time feedback correction on the intra-day scheduling stage; and S11, carrying out simulation and verification. The invention providesa multi-time scale energy management method with multi-stage coordination and step-by-step refinement, scheduling strategies in different scheduling stages are designed according to resources at thepower generation side and the demand side, and the matching of load and renewable energy power generation in time sequence is facilitated.

The invention provides a power-gas energy flow distributed cooperative optimization calculation method based on an alternating direction multiplier method. Firstly distributed independent optimization bodies-a power optimization body and a natural gas optimization body are determined according to the research object power-gas interconnection system, and both of the bodies are in the same position; the connection features of the power-gas interconnection system are analyzed, a coupling element model is researched and abstracted as the corresponding coupling constraint, and power flow and natural gas flow shared variables are determined; second-order cone programming sub-problems corresponding to the bodies are constructed accordingly for aiming at the problem of natural gas system pipeline gas flow direction optimization by adopting the McCormick equation and the relaxation technology; and mutual interaction and alternating solution of all the optimization sub-problems can be performed according to the alternating direction multiplier method solving mode, and the convergence can be judged according to the convergence criterion so that distributed cooperative optimization calculation of the power flow and the natural gas flow can be realized.

The invention discloses a robust optimization-based combined cooling heating and power supplying type microgrid operating method. The operating method comprises the following steps of step 10), establishing a combined cooling heating and power supplying type microgrid economic operation target function; step 20), establishing a certainty constraint in combined cooling heating and power supplying type microgrid operating constraint; step 30), establishing uncertainty constraint in the combined cooling heating and power supplying type microgrid operating constraint; and step 40), solving an optimization model to obtain system operating control variable, and transmitting corresponding instructions to each equipment in the system, wherein the optimization model comprises the target function established in the step 10), the certainty constraint established in the step 20) and the uncertainty constraint established in the step 30). By adoption of the operating method, adverse impact caused by uncertainties of renewable energy and load can be eliminated.

The invention provides an electric vehicle charging guidance method considering road-network-vehicle, which considers the charging demand difference of different types of electric vehicles, performs optimized guidance scheduling on the electric vehicles in slow charging and fast charging modes from two aspects of day-ahead and real-time. The method comprises the following steps: establishing an electrical traffic cooperative control architecture; formulating a charging station selection and navigation strategy; formulating a time-sharing and zoning electricity price to guide quick charging; and establishing a double-layer optimization scheduling model to guide slow charging. According to the method, on the premise that the safety and economy of a power distribution system are guaranteed, the satisfaction degree of power consumers is considered, and different charging requirements, time and space and other factors are considered to research the guide strategy and operation mode of the electric vehicle. Analysis of the charging station and system load conditions before and after optimization shows that the method enables the system load to be gentler than that in a free charging mode, plays a role in peak clipping and valley filling to a certain extent, and improves the operation safety and economy of a power system.

The embodiments of the invention disclose a method and a system for starting a hybrid electrical vehicle. In the method, the hybrid electrical vehicle has the following four starting modes: motor start-up, motor and engine combined start-up, engine and engine combined start-up and engine start-up. The method judges the present appropriate vehicle starting mode according to the present working condition information of the vehicle before determining the vehicle starting mode, so as to optimize the present starting performance of the vehicle. The vehicle working condition information includes transmission case input shaft torque, SOC and battery working conditions. The method and the system achieve the purpose of meeting the requirements for different vehicle starting accelerations, ensure economical efficiency of the vehicle and protect the battery.

The invention discloses a gear contact fatigue reliability analysis method. Firstly, the contact stress model of gear is established, the residual fatigue strength after a certain cycle is obtained onthe basis of a fatigue S-N curve, and then the function of gear contact fatigue failure is constructed. Then, according to the distribution characteristics of the random parameters, the Monte Carlo method is used to generate point set, the initial Kriging model is constructed by randomly selecting N points as the experimental design points, and then the sample points which are closest to the limit state surface or have the largest error are obtained by active learning strategy, and the sample points are added to the original experimental design points as the best sample points, and the Kriging model is updated until convergence. According to the convergent Kriging model, the approximate value of the function corresponding to all the sample points is obtained, and the failure probability is calculated by Monte Carlo method. Finally, an example is given to verify the feasibility of the proposed method. The gear contact fatigue reliability analysis method of the invention is more efficient and practical.

The invention relates to a system and a method for measuring vision of a variable optical axis. The measuring system comprises a substrate, a camera, a rotary prism device and a computer, wherein the computer is connected with the camera and the rotary prism device respectively; the camera is arranged on the substrate through a camera adjusting mechanism; the rotary prism device is fixed on the substrate and aligns to the camera in the axial direction; an imaging plane of the camera and a prism plane of the rotary prism device are parallel to each other; and the rotary prism device comprises a prism capable of rotating in a complete cycle. Compared with the prior art, high-resolution target images can be collected by the camera under various optical axis pointing states respectively by sufficiently utilizing accurate pointing characteristic and wide-field scanning capacity of the rotary prism, the imaging view field and measuring range of the system can be enlarged obviously, relatively high imaging resolution and three-dimensional measurement accuracy are realized, and simultaneously, the integration and economical efficiency of system structure design also can be guaranteed.