35results about How to "Meet Simulation Needs" patented technology

The invention discloses a polyester fabric hydrophilic antistatic agent which consists of the following components by weight percentage: 8 to 18 percent of DMT, 38 to 48 percent of glycol, 16 to 26 percent of polyoxyethylene, 6 to 16 percent of zinc acetate, 4 to 14 percent of diantimony trioxide and 3 to 8 percent of triphenyl phosphate, and the total amount of all the components is 100 percent. Interchange esterification and condensation polymerization are carried out to all the components so as to obtain the hydrophilic antistatic agent. The hydrophilic antistatic agent is adopted to prepare fabric-washing treatment liquid, and during the process the magnesium chloride hexahydrate is added and a two-dipping-two-rolling method is adopted to deal with the polyester fabric, and then the fabric is dried so as to complete the later finishing to the terylene fabric. The hydrophilic antistatic agent of the invention has stable antistatic capability, good washing resistance and low price. Adopting the antistatic agent to the later finishing of dacron can save the baking process of applied process so as to reduce energy cost and enhance the wearing property of polyester fiber and corresponding fabrics so as to meet the simulation requirement to polyester fabrics of costume fabric market.

The invention discloses a hierarchical dynamic equivalence method suitable for a regional power grid. The method comprises the steps of dividing a large-scale power grid into an internal system and an external system; building a power grid model of the internal system according to a topological structure of the internal system; dividing the external system into three layers of an outer-layer external network, an inner-layer external network and a buffer network; building an equivalent model of the outer-layer external network by adopting a coherent equivalence method; building an equivalent model of the inner-layer external network by adopting a dynamic equivalence method based on physical equivalence; building a power grid model of the buffer network according to a topological structure of the buffer network; simplifying 500kV backbone networks in the equivalent model of the outer-layer external network and the equivalent model of the inner-layer external network to the boundary of the buffer network by adopting a backbone network simplification method, and forming an equivalent model of the external system by the equivalent model of the outer-layer external network, the equivalent model of the inner-layer external network and the power grid model of the buffer network; and combining the power grid model of the internal system with the equivalent model of the external system to finally obtain an equivalent model of the regional power grid. According to the method, the simulation efficiency and the equivalence precision are ensured.

The invention relates to the field of simulation evaluation and flexible simulation modeling of passive radar battle effectiveness indexes, in particular to an operator-based passive radar target interception probability flexible simulation modeling method, which is characterized by comprising the following steps of: S1, constructing a passive radar target interception probability simulation mathematical model; S2, designing a corresponding resolving method, a mathematical model and a parameter relation according to the composition of the key model; S3, performing operator design of passive radar target interception probability simulation solution; S4, forming a passive target interception probability simulation operator component package; S5, constructing a passive radar target interception probability simulation operator tree model; S6, performing passive radar target interception probability simulation operator tree model verification; And S7, optimizing the passive radar target interception probability simulation model. The passive radar target interception probability simulation modeling method solves the problem of modularization and standardization of passive radar target interception probability simulation modeling, and improves the simulation modeling and mode testing efficiency.

The invention discloses a comprehensive energy heat supply system dynamic simulation method and device based on an expansion node method applied to a comprehensive energy heating system. The method comprises the following steps of: a system parameter input step, a step of obtaining a hydraulic part dynamic simulation model; a step of obtaining a pipeline branch thermodynamic equation set; a step of obtaining a heat consumer branch thermodynamic equation set, a step of obtaining a heat source branch thermodynamic equation set, a step of obtaining a system thermodynamic topology constraint equation set, a step of obtaining a thermodynamic part dynamic simulation model, a step of carrying out simulation initial, a step of carrying out simulation processing, a step of carrying out simulation judgment, a step of determining a simulation result and carrying out simulation circulation. The hydraulic dynamic state and the thermal dynamic state of the comprehensive energy heat supply system canbe simulated at the same time, and the simulation requirements of the comprehensive energy heat supply system in various application environments are met.

The invention relates to the field of simulation evaluation and flexible simulation modeling of sky-wave radar combat effectiveness indexes, in particular to a sky wave radar detection probability flexible simulation modeling method based on an operator, which is characterized by comprising the following steps: S1, constructing a sky-wave radar detection probability simulation process; S2, designing a resolving method and a mathematical model of a corresponding link; S3, performing operator design of sky-wave radar detection probability simulation calculation to form a simulation operator component package; S4, constructing a sky wave radar detection probability simulation operator tree model; S5, verifying the sky wave radar detection probability simulation operator tree model; and S6, optimizing the sky wave radar detection probability simulation model. The flexible simulation modeling problem of sky wave radar detection probability calculation is solved, and the flexible simulationmodeling method has the advantages of being flexible, visual, extensible and the like.

The invention provides a semi-physical simulation element design method for a large-scale unmanned cluster network. According to the invention, simulation elements such as virtual nodes, wireless signal extraction channels and controllers are designed in a targeted mode on the basis of an SDN framework for an existing semi-physical simulation platform, the virtual nodes simulate various physical nodes, and the technical effects of node transmission, calculation, storage and fusion are achieved; the problem of high-dynamic topological change simulation of the semi-physical simulation platform is solved; the problems of link characteristics such as time delay, jitter and packet loss rate of wireless channel accurate simulation of the mobile ad hoc network are solved, so that large-scale unmanned cluster network simulation is real and reliable.

The invention provides a method and a device for simulating transient reactive characteristics of a doubly-fed wind turbine generator. The method comprises the steps of performing electromagnetic transient real-time simulation on the doubly-fed wind turbine generator based on a pre-built control hardware-in-the-loop simulation model; determining transient reactive characteristics of the double-fedwind turbine generator based on the simulation result; constructing the control hardware-in-the-loop simulation model based on the doubly-fed motor unit and the encoder unit, the simulation step length is small, the data transmission delay is small, and the simulation result accuracy is high. According to the invention, an encoder is configured for the high-speed FPGA module; Double-fed motor, aconverter, a power grid and an acquisition unit, FPGA module simulation step size is small, the simulation requirement of a converter switching device with the switching frequency of several KHz or even dozens of KHz can be sufficiently met; A display storage unit and a data processing unit are configured for a low-speed CPU module, so that the simulation step length of the whole control hardwarein a loop simulation model can be small enough, the simulation precision requirement of a converter switch element is met, and a foundation is laid for double-fed wind turbine generator single-machinemodel simulation and wind power plant model simulation.

The invention discloses an integrated supervisory control simulating training system model data management method for equipment functions in railway integrated supervisory control. The integrated supervisory control simulating training system model data management method includes the steps that based on function simulating for equipment, a template-equipment model data management structure is established; through an equipment function simulating logic template, function simulation defining of the equipment template is performed on logical relationships among point templates included by the equipment template; equipment simulating model data configuration is performed, and modeling and function simulating are performed on data in a railway integrated supervisory control simulating training system. On the basis of function simulating for the equipment, the management structure based on the template-equipment model data is established, and in combination with the equipment function simulating logic template, the problems that according to the traditional data modeling and function simulating design method in the integrated supervisory control simulating training system, because modeling management is performed for point functions, integrality is poor, and the data volume is large are solved.

The invention discloses a direct current transmission system control method and system based on adaptive active disturbance rejection proportional integral. The method comprises the following steps of: performing discretization processing on an active disturbance rejection proportional integral controller to obtain an adaptive active disturbance rejection proportional integral controller; and realizing constant current control of a rectification side and constant turn-off angle control of an inversion side in a direct current system based on the adaptive active disturbance rejection proportional integral controller. According to the direct current transmission system control method and system disclosed by the invention, the adaptive active disturbance rejection proportional integral controller is applied to the constant current control of the rectification side and the constant turn-off angle control of the inversion side in the direct current system, so that the dynamic response speedand the robustness of the system in response to large-range disturbance are improved, and the continuous commutation failure in the high-voltage direct current transmission system is effectively suppressed.

The invention discloses a method of eliminating negative resistance of a power system. The method is characterized in that step S10, a power flow result of a simplified power network system and a resistance value and a reactance value of a newly generated serial connection branch circuit comprising the negative resistance are acquired, and the power flow result is a power flow calculation result before the simplification of the power network system; step S20, the equivalent current network conversion of the serial connection branch circuit comprising the negative resistance is carried out, and a ground admittance branch circuit comprising the negative resistance and positive resistance is acquired by the conversion; step S30, the negative resistance of the ground admittance branch circuit is neglected, and the positive resistance is retained, and then the parameters of the branch circuit comprising the negative resistance are updated to form a new branch circuit. The method of eliminating the negative resistance based on the power flow calculation result is advantageous in that the negative resistance is eliminated by adopting less steps and without changing the dynamic characteristics of the system a lot, and therefore a modeling requirement of an electromagnetic transient state simulation software on the network comprising the negative resistance and the simulation requirement of the network comprising the negative resistance are required.

The invention relates to a modeling and analysis method in the field of electrical power system modeling and simulating, in particular to a power distribution system multi-dimensional multi-resolution modeling and analysis method. According to the power distribution system multi-dimensional multi-resolution modeling and analysis method, one or more standard values are selected, the multi-dimensional resolution of a model is composed of parameters such as the percentage of the internal power capacity to the standard value (the internal power capacity percentage for short) and the percentage of a load to the standard value (the load capacity percentage for short), then conventional models of the current, the voltage, the line losses and the like are shown in the multi-dimensional resolution mode, a plurality of resolution modes are formed along with changes of the resolution, accordingly, a multi-dimensional multi-resolution model is built, and finally electrical characteristics such as the current, the voltage and the line losses in the system are analyzed based on the model. According to the power distribution system multi-dimensional multi-resolution modeling and analysis method, the multiple models with different resolutions are mutually connected in a joint environment, dynamic characteristics in a power distribution system are jointly reflected from multiple angles and multiple layers, and accordingly the simulating efficiency and the simulating quality are improved.

The invention discloses a station alternating current network topology switch node state determination method and device, and the method comprises the steps: traversing a pre-generated switch data file, recording switching numbers between adjacent nodes, marking terminal nodes, and forming a search set, wherein the switch data file comprises a switch name, a switch type, a switch head node, a switch tail node, an on-off state and detailed description; when the on-off state or the power state changes, sequentially traversing the terminal nodes in the search set, and judging the states of the terminal nodes and the adjacent nodes to obtain the electrified states of all the nodes, wherein the terminal node is a switch tail node without an adjacent switch. The method and device can improve thejudgment speed and precision of the state of the switch node.

The invention provides a modeling method of a virtual synchronous machine black box model, which belongs to the technical field of new energy grid-connected power generation and energy storage. The black-box model including the virtual synchronous machine contains two parameters: the parameter M that describes the active power response of the virtual synchronous machine to the out-of-frequency characteristics of the grid Pf , the parameter M describing the reactive power response of the virtual synchronous machine to the external characteristics of the grid voltage QU ; Obtain the input and output data of the black box of the virtual synchronous machine through the grid frequency disturbance step experiment and the grid voltage disturbance step experiment, and use the parameter identification to establish the description parameter M Pf The output error model and description parameter M of QU multicenter model. The different model structures selected by the present invention according to the characteristics of the black box parameters can accurately describe the external characteristics of the virtual synchronous machine connected to the grid; the modeling process does not need to know the internal control parameters of the virtual synchronous machine, and the built black box model greatly reduces the amount of calculation and shortens the simulation time , which saves storage space and is suitable for the simulation analysis of large-scale virtual synchronous machine systems at the system level.

The invention discloses a hierarchical dynamic equivalence method suitable for a regional power grid. The method comprises the steps of dividing a large-scale power grid into an internal system and an external system; building a power grid model of the internal system according to a topological structure of the internal system; dividing the external system into three layers of an outer-layer external network, an inner-layer external network and a buffer network; building an equivalent model of the outer-layer external network by adopting a coherent equivalence method; building an equivalent model of the inner-layer external network by adopting a dynamic equivalence method based on physical equivalence; building a power grid model of the buffer network according to a topological structure of the buffer network; simplifying 500kV backbone networks in the equivalent model of the outer-layer external network and the equivalent model of the inner-layer external network to the boundary of the buffer network by adopting a backbone network simplification method, and forming an equivalent model of the external system by the equivalent model of the outer-layer external network, the equivalent model of the inner-layer external network and the power grid model of the buffer network; and combining the power grid model of the internal system with the equivalent model of the external system to finally obtain an equivalent model of the regional power grid. According to the method, the simulation efficiency and the equivalence precision are ensured.

The invention discloses a polyester fabric hydrophilic antistatic agent which consists of the following components by weight percentage: 8 to 18 percent of DMT, 38 to 48 percent of glycol, 16 to 26 percent of polyoxyethylene, 6 to 16 percent of zinc acetate, 4 to 14 percent of diantimony trioxide and 3 to 8 percent of triphenyl phosphate, and the total amount of all the components is 100 percent.Interchange esterification and condensation polymerization are carried out to all the components so as to obtain the hydrophilic antistatic agent. The hydrophilic antistatic agent is adopted to prepare fabric-washing treatment liquid, and during the process the magnesium chloride hexahydrate is added and a two-dipping-two-rolling method is adopted to deal with the polyester fabric, and then the fabric is dried so as to complete the later finishing to the terylene fabric. The hydrophilic antistatic agent of the invention has stable antistatic capability, good washing resistance and low price. Adopting the antistatic agent to the later finishing of dacron can save the baking process of applied process so as to reduce energy cost and enhance the wearing property of polyester fiber and corresponding fabrics so as to meet the simulation requirement to polyester fabrics of costume fabric market.

The invention discloses an electronic device low-temperature modeling method and device suitable for a quantum measurement and control system, and belongs to the technical field of quantum measurement and control. According to the electronic device low-temperature modeling method suitable for the quantum measurement and control system, a transistor is selected to be measured in a low-temperature environment, and a low-temperature model of an electronic device is established on the basis of test data. According to the electronic device low-temperature modeling method suitable for the quantum measurement and control system, the low-temperature circuit simulation requirement can be met, the research and development time and cost are saved, and good application and popularization value is achieved.

The invention discloses a flexible load regulation and control simulation system and method based on a dispatching automation master station system, and the system comprises: a flexible load regulation and control simulation module which is used for simulating a first flexible load of a power grid system, constructing a first flexible load simulation model, and transmitting the first flexible loadsimulation model to the dispatching automation master station system; a dispatching automation master station system which is used for generating a power control instruction of each unit in the powergrid system according to a preset dispatching plan and AGC adjustment, aggregating the first flexible loads according to a first flexible load simulation model to generate a flexible load equivalentgenerator set, updating the power grid system units according to the flexible load equivalent generator set, wherein the power grid system unit comprises a generator set and a flexible load equivalentgenerator set; and a power grid simulation platform which is used for simulating a power grid system unit of the power grid system according to the power control instruction to obtain a power grid unit simulation model. An efficient and feasible flexible load regulation and control simulation strategy is provided.

The invention relates to an unmanned vehicle simulation method and device, a storage medium and electronic equipment, and the method comprises the steps: receiving a simulation request of a user, wherein the simulation request comprises a plurality of simulation demands; determining a plurality of simulation scenes corresponding to the plurality of simulation requirements from a simulation scene set; splicing the plurality of simulation scenes to obtain a target simulation scene sequence; and sending the target simulation scene sequence to the unmanned vehicle, wherein the target simulation scene sequence is used for simulation of the unmanned vehicle. By adopting the technical scheme, a plurality of simulation scenes can be automatically selected and matched according to the requirements of a user in the unmanned vehicle simulation process, so that automatic and continuous multi-scene simulation is realized. In the process, the user does not need to manually issue a simulation test task. Therefore, according to the technical scheme, the unmanned vehicle simulation efficiency can be improved, and the labor cost in the simulation process is reduced.

The invention relates to the field of logic verification development and discloses a system for simulating an Ieee1588 module in an OTN (Optical Transport Network). The invention also discloses a method for simulating the Ieee1588 module in the OTN (Optical Transport Network). The method comprises the steps that S1, an excitation generation module generates Ethernet frames and ptp frames; S2, the ptp frames are mixed with the Ethernet frames, thereby forming mixed Ethernet frames; S3, a simulation system access module captures the mixed Ethernet frames and generates a drive signal for driving DUT, and the simulation system access module captures the Ethernet frames and the ptp frames generated by the excitation generation module and sends the Ethernet frames and the ptp frames to scoring boards; S4, a simulation system output module monitors and obtains the mixed Ethernet frames output by the DUT; S5, the mixed Ethernet frames output by the DUT are separated, thereby obtaining the Ethernet frames and the ptp frames; and S6, in the scoring boards, the separated Ethernet frames are compared with the Ethernet frames generated by the excitation generation module, and the separated ptp frames are compared with the ptp frames generated by the excitation generation module. The system and the method are high in multiplexing.

The invention provides a method for creating a simulation scene, which comprises the following steps of: acquiring high-precision map information, and constructing static information of a simulation environment according to the high-precision map information; acquiring sensing information of a real sensor in a real scene and actual road condition information, and constructing dynamic information of a simulation environment according to the sensing information of the real sensor and the actual road condition information; acquiring scene features, and adding the scene features into the simulation environment; setting a simulation sensor, running the simulation sensor in the simulation environment, and obtaining induction information of the simulation sensor; and generating a simulation scene according to the dynamic information, the static information, the scene features and the sensing information of the simulation sensor, and storing the simulation scene. According to the invention, the problem that the simulation test environment of the existing fusion sensing module is too simple and single is solved.

The invention relates to a cross-platform spin stabilization satellite flight simulation system which mainly comprises a flight simulation control system and a dynamic simulation system. The flight simulation control system comprises an operation control module, a data transmitting module, a data receiving module, a remote control processing module, a monitoring display module and a real-time recording module. The dynamic simulation system mainly comprises a data input module, a four-stage engine ignition simulation module, a fuel amount / storage tank pressure and engine thrust computing module, an accelerometer nutation measured value computing module, an independent nutation control computing module, a nutation control / gesture control selecting module, a control force and torque computing module, a gesture kinematic and dynamic computing module, a control total impulse accumulation computing module and a track amount measurement computing module. The cross-platform spin stabilization satellite flight simulation system has relatively high versatility and can perform data exchange and simulated training with a spin stabilization satellite mold platform, a manned space flight satellite mold platform and an exploration satellite mold platform, thereby finishing simulation for states of satellite independent nutation control, rotating speed control, time delay measurement, gesture control, emergency nutation control, emergency spinning, etc.

The application provides a static mutual interference simulation method and apparatus, wherein the method and apparatus are used for interference simulation of an interfered system by an interference system so as to solve problems of low universality and low simulation efficiency according to the existing simulation method. The method comprises the following steps that: a simulation cyclic variable is classified into three categories including a cyclic variable S1 influencing a topological structure of the system, a snapshot cyclic variable S2 and a cyclic variable S3 not relevant to the topological structure of the system; for the simulation, the cyclic variable S1 and / or cyclic variable S3 as well as values of the cyclic variable S1 and the cyclic variable S3 are set and an initial value and a maximum value of the cyclic variable S2 are set, and a designated performance index C of the interfered system is also set; the values of the cyclic variable S1 and the cyclic variable S3, the initial value and the maximum value of the cyclic variable S2, and the designated performance index C are introduced into a simulated flow for calculation. According to the simulation method, various simulation demands can be satisfied only by setting parameters simply, so that the universality is high; and the simulation efficiency is high.

The invention discloses a generalized simulation modeling method of a desulfurizing tower with dynamic characteristics. By researching and analyzing technological designs and reaction processes of desulfurizing towers in different flue gas desulfurization systems, a generalized mathematical model is set up for the desulfurizing tower with dynamic characteristics by utilizing a wet ammonia process and a limestone-plaster wet process.In a model for the desulfurizing tower, simulation of two desulphurization methods can be easily switched and independently operated in order to satisfy the simulation need of different desulphurization processes. Compared with a signal method, the desulphurization model is more practical.Compared with the prior art, the generalized simulation modeling method of desulfurizing tower with dynamic characteristics has following beneficial effects: based on the modularization modeling method of a control body, the overall dynamic process of the desulfurizing tower can be simulated. Dynamic parameters such as in-vivo temperature, pressure, pH value, SO2 concentration and desulfurization rate can be calculated.The generalized simulation modeling method of the desulfurizing tower with dynamic characteristics has following beneficial effects: by using the desulfurization tower in a thermal power plant as a simulation object, dynamic simulation tests are conducted to the model; dynamic characteristics of the object can be simulated by a simulation operation result; accuracy and generality of the model can be proved; and the model can be used for simulation and development of a wet flue gas desulfurization system.

The invention provides a method applied to an industrial simulation platform. The method comprises a common user, a development user and a system. The common user logs in the platform to search target simulation software; if the target simulation software is found, trying or subscribing can be selected, and subscribing can be selected after trying is finished; if the target simulation software is not found, a simulation software development demand can be submitted to a transaction system; the development user receives a simulation software development demand through the transaction system; according to simulation software development requirements, a development environment, a model and a solver plug-in are selected through a platform, and simulation software development is carried out; after simulation software development is completed, the simulation software is uploaded to the platform; and according to the system, when a common user tries on target simulation software or subscribes to use the target simulation software, computing resources for operation of the simulation software are distributed. According to the invention, a user can directly operate simulation software on the platform; and meanwhile, simulation software development requirements can be proposed according to requirements, a development user carries out development in response to the requirements, and the simulation requirements of subdivision fields are met.

The invention relates to a distributed real-time simulation platform suitable for a simulation model and a process model, belongs to the technical field of simulation, and solves the problem that a simulation platform architecture cannot meet simulation requirements of different models. The platform comprises a simulation master control system, a simulation management bus, a real-time simulation bus, a computing node, an I / O interface adapter and an I / O interface bus, wherein the simulation master control system generates a simulation task list according to the simulation task, the calculation node list and the interface adapter list; the simulation task comprises a process model, a simulation model or a combination of the two; the simulation task list comprises simulation sub-tasks and computing nodes for deploying the sub-tasks; the computing node interacts data generated in the simulation processing process with the simulation master control system and other computing nodes through the real-time simulation bus; when the sub-tasks on the computational nodes are associated with the process model, the I / O interface bus and the I / O interface adapter are used for interactively simulating I / O data with a real object or physical effect device connected with an interface associated with the process model.