CN105096380A - Complete simulation method of real electric power network structure based on 3D simulation technology - Google Patents
Complete simulation method of real electric power network structure based on 3D simulation technology Download PDFInfo
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Abstract
The invention discloses a complete simulation method of a real electric power network structure based on 3D simulation technology. With electric power facilities as elements, an electric power scene, equipment (a transformer substation, a rod, a tower, a switch, a transformer, an autorecloser or the like), safety equipment (a ground wire, a rail, a warning sign or the like), and geographical states (crossing, roads, houses, rivers or the like) are made into professional modules (smaller versions of actual objects), a worker configures the modules and creates the electric power simulation scene intuitively, vividly and quickly according to actual geographical conditions, and under the scene, we can browse in a variety of manners within 360 degrees, a complex construction scene can be fixed for subsequent security risk prevention and control and construction training of the scene.
Description
Technical field
The present invention relates to network system simulation technical field, particularly relate to a kind of complete analogy method of electrical network real structure based on 3D emulation technology.
Background technology
In recent years, constantly accelerate along with China Power developing steps, China Power Grids is also developed rapidly, network system working voltage grade improves constantly, network size also constantly expands, the whole nation has defined Northeast China Power Grid, North China Power Telecommunication Network, Central China Power Grid, East China Power Grid, Northwest Grid and south electric network 6 large area electrical network transprovincially, and has basically formed complete long distance powedr transmission Net Frame of Electric Network.China Power Grids scale exceedes the U.S., leaps to the first in the world.Under so swift and violent growth momentum, China's electrical network preconsolidation stress highlights its importance, only have and use the contact generating of 3D emulation technology to electrical network field and the facility of electricity consumption, equipment carries out real simulation, the most effectively could must reduce following real scene, the new application of 3D emulation technology in electrical network is emphatically for electrical network industry and facility, make up the shortcoming that its early stage lacks True Data simulated scenario reduction link, set up a dynamic more new change, and utilize the 3D simulated environment of international advanced algorithm and engine, early stage is set up to electrical network, operational process and equipment carry out real simulation reduction.
Usually said 3D emulation technology refers to real-timeinteractivevideo, here interactive refers to the display (as amplified, reducing, rotate, pull) that operation can affect picture, because system can be fed back the operation of operator, so this kind of 3D emulation technology is truer, more attractive, real-time refers to real-time operation, the change of environment must be real-time shows on picture.Be alternatively the one of video, it utilizes general computer technology to achieve the effect of real-time, interactive.
Computing machine is digitized in essence, namely signal be discrete (with continuous phase to), numeral, all continuous print effects are realized by enough fast renewal picture, the actual principle being similar to film, TV.It is all simulate continuously with discrete.Because millisecond magnitude that the reaction time of general human eye, the chances are, so use discrete simulation to be feasible continuously.
At present, the application of 3D emulation technology in electrical network, fully understanding on the basis of electric network composition and facility, optimize traditional 3D realistic model, algorithm and engine technique, the complete simulation of electrical network true environment is simulated, so there is not operability, when true environment is because of many reasons flip-flop, 3D emulation technology cannot produce corresponding change in time.In other words, the new application of 3D emulation technology in electrical network focuses on the authenticity of data, is by true power grid environment datumization, then by data 3Dization, is a kind of static mirror image simulated environment, but not " dynamically " simulated environment.
Summary of the invention
The object of this invention is to provide a kind of complete analogy method of electrical network real structure based on 3D emulation technology, can on the basis of simulated grid structure and facility, optimize traditional 3D realistic model, algorithm and engine technique, realize simulating the complete simulation of electrical network true environment.
The technical solution used in the present invention is:
Based on the complete analogy method of electrical network real structure of 3D emulation technology, comprise the following steps:
1) import *** map datum: be mainly used in checking the position relationship of the equipment relevant to grid power infrastructure and buildings and surrounding environment, attribute information, corresponding geographical spatial data and accurately towards;
2) 3dsmax modeling: analogue formation on *** map projection basis;
The model made comprises: the power equipment that electrical network is relevant and buildings, also comprises natural object and the creature of equipment and the existence of buildings surrounding environment;
Wherein, power equipment and buildings comprise: the house that transformer station, bar, tower, switch, transformer, automatic circuit, ground wire, fence, warning sign, railway, road and electric power are applied;
Natural object comprises: the geography that equipment and buildings surrounding exist moves towards present situation, scissors crossing, tall and big trees, the mountain ridge, hills, river;
Creature comprises: the artificial various buildings that equipment and buildings surrounding exist.
3) obj model is derived: derive the model format that Run-time engine can identify;
4) polishing, texture is baked and banked up with earth: on model, render the texture under certain light condition, and adjust UV coordinate;
5) increase surrounding environment object: mainly refer to the ornament minimodels such as road, flower bed, air-conditioning, adopt reproducible model to reduce scene complexity as far as possible;
6) derive document scene: final structured file of deriving whole scene, the position comprising the obj model of deriving and each model loads relation;
7) view operation
1.: calculate the current transform matrix of skeleton cartoon, the current data of vertex animation, the current location animation related data of video camera movement;
2.: calculate the state that particIe system is current;
3.: calculate the transformation matrix that visual angle is new;
4.: upgrade modelViewmatrix, projectionmatrix according to visual angle matrix4;
5.: carry out scene rejecting according to new view frustums, general outdoor scene is Octree cutting, indoor scene is binary tree cutting;
6.: the orientation upgrading each node, the attributes such as position, scale;
8) render scenes
7.: play up the mesh in renderQueue successively, divide into groups to carry out playing up and then raising the efficiency according to shader etc., the feature of GPU is that parallel computation is fast, but very time-consuming during switching state;
8.: for GPU binds vertex data;
9.: the parameter that vertixshader and pixelshader is set;
10.: perform shader program.
Advantage of the present invention: 1, real-time-more traditional 3D emulation technology, new technique does not need repetition modeling, can change in real time when model database changes;
2, guarantee frame steady (picture plays the sensation wanted steadily, can not have F.F. or block)-need to carry out the optimization of algorithm and the lifting of server Equipments Setting;
3, can not block whole thread-when local there is BUG picture time, ensure the smoothness of whole large picture threads;
4, the effect of 3d model wants true (mainly physical simulation etc.)-guarantee consistent with true environment, instead of schematic diagram.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
As shown in Figure 1, the present invention includes following steps:
1) import *** map datum: be mainly used in checking the position relationship of the equipment relevant to grid power infrastructure and buildings and surrounding environment, attribute information, corresponding geographical spatial data and accurately towards;
2) 3dsmax modeling: analogue formation on *** map projection basis;
The model made comprises: the power equipment that electrical network is relevant and buildings, also comprises natural object and the creature of equipment and the existence of buildings surrounding environment;
Wherein, power equipment and buildings comprise: the house that transformer station, bar, tower, switch, transformer, automatic circuit, ground wire, fence, warning sign, railway, road and electric power are applied;
Natural object comprises: the geography that equipment and buildings surrounding exist moves towards present situation, scissors crossing, tall and big trees, the mountain ridge, hills, river;
Creature comprises: the artificial various buildings that equipment and buildings surrounding exist.
3) obj model is derived: derive the model format that Run-time engine can identify;
4) polishing, texture is baked and banked up with earth: on model, render the texture under certain light condition, and adjust UV coordinate;
5) increase surrounding environment object: mainly refer to the ornament minimodels such as road, flower bed, air-conditioning, adopt reproducible model to reduce scene complexity as far as possible;
6) derive document scene: final structured file of deriving whole scene, the position comprising the obj model of deriving and each model loads relation;
7) view operation
1.: calculate the current transform matrix of skeleton cartoon, the current data of vertex animation, the current location animation related data of video camera movement;
2.: calculate the state that particIe system is current;
3.: calculate the transformation matrix that visual angle is new;
4.: upgrade modelViewmatrix, projectionmatrix according to visual angle matrix4;
5.: carry out scene rejecting according to new view frustums, general outdoor scene is Octree cutting, indoor scene is binary tree cutting;
6.: the orientation upgrading each node, the attributes such as position, scale;
8) render scenes
7.: play up the mesh in renderQueue successively, divide into groups to carry out playing up and then raising the efficiency according to shader etc., the feature of GPU is that parallel computation is fast, but very time-consuming during switching state;
8.: for GPU binds vertex data;
9.: the parameter that vertixshader and pixelshader is set;
10.: perform shader program.
Principle is realized the following detailed description of of the present invention:
First, several basic terms are explained
Operator:3D emulation technology, when observing, need introduce the concept of operator.
Gamepad (alsocalledjoypadorcontrolpad): control lever.
Skeletalanimation(skeleton cartoon): 3D artificial actual is the multiple discrete vertex position set of continuous print, vertex animation is by computed in advance for the set of these positions, directly put into video card in use to play up, skeleton cartoon is the transformation matrix calculating each abstract bone in each frame, is responsible for above these change actions to the skin originally set afterwards when playing up by video card.
Establish between ragdollphysics: each bone(rigidbodies inside skeleton cartoon) a kind of mutual constraint relation (circuit of such as grid equipment only to stretch out, and can not access arrangement inner), make 3D effect truer like this.
The Shader Language of AGAL:AdobeGraphicsAssemblyLanguageStage3D.
It is Apollo that AIR:AdobeIntegratedRuntime develops code name, is a cross operating system running environment, is used for building RIA, uses Flash, Flex, HTML and AJAX, may be deployed as multipad.
The AIR technology that to be Adobe develop for the combination of network and desktop application, can control the cloud program on network via browser, also because this is the technology that Adobe develops, therefore can very smoothly with Adobe under the application program such as Photoshop, Flash, Fireworks develop.
GPU: graphic process unit
Shader: tinter, refers to that one group for the instruction of computer graphical resource when performing rendering task.Programmer, by the Programmable Pipeline of shader application in graphic process unit (GPU), realizes tri-dimensional application program.Such graphic process unit is different from traditional fixed flowline processor, for GPU programming brings higher dirigibility and adaptability.
Tinter is divided into vertex shader, geometric coloration, pixel coloring device.
Rendering pipeline: rendering pipeline also referred to as rendering pipeline, be display chip inter-process figure signal separate parallel processing element; Rendering pipeline can be likened to various production lines common inside factory to a certain extent, the production line in factory is productive capacity in order to improve product and efficiency, and rendering pipeline is then the ability to work and the efficiency that improve video card.
The rule of general 3D emulation technology is held by server and is calculated, client is a state " player " in essence, in order to more effective in real time demonstrate up-to-date state, the data structure of an operator and environment will be preserved (if real-time the fetching from server end of all data in this locality, then render can only perform in message readjustment, like this can card frame), the data structure of needs ceaselessly will be shown in order to embody up-to-date state client, as long as that refreshes like this is enough fast, user will feel it is that real-time synchronization upgrades.The data structure of core is operator, and it is originally consistent (ID of client end is used for marking an object of server end) that this structure server holds with client end group.
The content for 3D simulated environment, a screen shown is the sub-fraction of virtual electrical network, and whole electrical network generally represents by scene graph structure thumbnail.
Basic logic
1, event handling, namely from previous frame to this frame, the event of buffer memory needs to process one by one.These events comprise local keyboard and mouse operation, and server passes the information etc. of coming.
The processing logic of these events mainly comprises:
1) picture moving, to turn to etc. (operation etc. that inside is the attributes such as the matrix4 of change mesh and video camera) to walk about----handoff scenario data and 3D walking;
2) target that visual angle-----changes video camera is switched;
3) further the visual angle,--------camera operation that zooms out visual angle;
4)--------is found key point, is play walking animation in pathfinding automatically;
5)--------plays specified particle effect, animation etc. to special-effect trigger;
6)--------is carried out respective logic process, is sent out respective request etc. to server to trigger certain interface element;
2, physical simulation
1) collision detection (find intersection etc.), visual angle can not be passed through wall, can not exceed map boundary line, can not be unsettled etc. effect;
2) IK Solvers simulation, can realize ragdoll effect;
3) physical simulation that fluid mechanics etc. are complicated, substantially the speed involved by Newton classic mechanics, acceleration, quality, kinematicss etc. can be accomplished (as having acceleration of gravity effect when can jump off by friction effects, personage when personage walks), the effects more true to nature such as fluid mechanics (buoyancy, resistance when air resistance, swimming will be embodied like this, the surface tension etc. during water flow) can be simulated.
3、preframe
1 " the current transform matrix (before calculating in physical engine before this) of skeleton cartoon, the current data of vertex animation is calculated, the animation related datas such as the current location of video camera movement;
2 " the current state of particIe system is calculated;
3 " the current data such as audio, background are calculated.
4, update scene
1) the new transformation matrix in visual angle is calculated;
2) modelViewmatrix, projectionmatrix etc. (why use matrix4x4 to be because video card supports 4 rank matrix parallel, note not being concurrent to be real walking abreast, this is the feature of GPU) are upgraded according to visual angle matrix4;
3) carry out scene rejecting (cull) according to new view frustums, general outdoor scene is Octree cutting, indoor scene is binary tree cutting;
4) orientation of each node is upgraded, the attributes such as position, scale (mainly the data of father node will be passed to child node).
5, render scenes
1 " play up the mesh in renderQueue successively, (can divide into groups to carry out playing up and then raising the efficiency according to shader etc. here, the feature of GPU is that parallel computation is fast, but very time-consuming during switching state;
1.1 " for GPU binds vertex data;
The parameter of vertixshader and pixelshader 1.2 " is set;
1.3 " shader program (some special efficacys can be made here) is performed;
2 " posteffect special efficacy.
Static structure: client hold code substantially can comprise following assembly: the suspension button etc. in GUI(scene), play up, scene management, animation, particle, physical simulation, AI, network, window interface (qt etc.), script, IO event, framework, video camera management, operator encapsulation etc.
The function of Electric Power Network Planning is added analogue system, the application of Power System Simulator can be expanded, Power System Simulator is made to adapt to planning requirement in graph data, Load flow calculation and the planning of power transmission network can be carried out easily in the face of figure, conveniently viewing can be shown to various result of calculation and programme, and provide some comments, for planning personnel's reference, improve economy and the reliability of Electric Power Network Planning.And Power System Simulator also can enter planning, design department, become the powerful that these departments carry out the work, make Power System Simulator have more vitality.
Take electric power facility as element, by electric field, equipment (transformer station, bar, tower, switch, transformer, automatic circuit etc.), managing security tools and instruments (ground wire, fence, warning sign etc.), geography moves towards present situation (scissors crossing, road, house, river etc.) be made into professional module (scaled down version of actual object), staff passes through module placement, by actual geographic situation, intuitively, image, create electric analog scene rapidly, under this scene, we can browse by 360 degree of various ways, complicated construction scene can be solidified, for the later Safety pre-control in this scene and construction training.
The Virtual Space of electric power three-dimensional artificial is dynamic, exercisable three-dimensional artificial demonstration.The equipment (the various key element such as transformer station, overhead line structures and railway, road, house) relevant to electric power facility and attribute information and corresponding geographical spatial data organically combine by electric power Three-dimensional Simulation System, unified management and the interactive operation of spatial data and attribute data can be carried out, having avatars form and deficient spatial analysis of beating intuitively, is the effective aid of electric power enterprise construction, maintenance.The relevant equipment management system of electric power facility is set up under can be implemented in unified arrangement based on native system and instruct, by intelligentized physics and logical resource management, the optimization realizing equipment that electric power facility is correlated with and power transmission network tissue is assisted, for maintenance and commander department provide a point quantitative analysis in conjunction with GIS geographic information system technology; Realize distribution and the management of map denotation electric power facility; Realize construction and the maintenance management of the equipment master data model that electric power facility is correlated with; Realize carrying out commander's operation to the equipment that electric power facility is relevant is accurate when keeping in repair.Being intended to of software development is convenient to the commander of electricity usage enterprise when power construction is rushed to repair demonstrates operation, training improves electric power first-aid personnel business skill, specification basic unit electric power first-aid personnel business operation, is accurately navigated to fault scene.
Substation simulation systemic-function is totally divided into three parts:
(1) scene simulation: we have carried out modular design to common overhead line structures, power equipment and railway, road, bridge, house, the various key element of the various environment of reservoir, can by module placement, directly perceived, image, create simulating scenes rapidly.
(2) simulation is deduced: on the scene basis of emulation, Analysis about Dangerous Point is carried out in conjunction with site inspection record, and work out site work guiding book, and by job instruction requirement beam worker appliance material, arrange implement technical safety measures, to site work carry out the division of labor arrangement.
(3) deduce playback: after deduction terminates in simulation, the flow process of being arranged by playback site safety technical measures, require, make division of labor and lines of specialities, directly perceived, image, effectively carry out the safety technical training etc. of operating personnel.
Substation simulation system for content
1. simulation object: respectively for 500kV, 220kV, 110kV, 35kV, 10kV integrated automation converting station.
2. simulation scale: all first and second equipment and comprehensive automation system of transformer substation comprehensive simulation in transformer station.
3. emulator: in the emulation of 1:1 ratio electric equipments, master-control room, protection room, outdoor equipment etc.; Substation inspection and operation can be carried out, in real time the various nominal situation of reflection transformer station, abnormal occurrence and accident condition.
The advantage of substation simulation system:
1. with a long history: Simulating technique in Electric Power System research in 20 years, exploitation.
2. experienced: successfully to emulate 300MW, 600MW fired power generating unit, 500kV comprehensive automation system of transformer substation.Developing 1000MW ultra supercritical coal-fired unit and 1000kV ultra-high voltage transformer station simulation software
3. advanced technology: the electric system simulation development platform with independent intellectual property right, easy to maintenance, system stability, Persisting exploitation.
4. specialty is full-time: the Computer Simulation expert of specialty and electrical engineering expert, full-time emulation training teacher.
5. train experience: trained domestic, external (Pakistan, Indonesia etc.) generating plant, transformer station technician and universities and colleges teachers and students people up to ten thousand.
Claims (1)
1., based on the complete analogy method of electrical network real structure of 3D emulation technology, it is characterized in that: comprise the following steps:
1) import *** map datum: be mainly used in checking the position relationship of the equipment relevant to grid power infrastructure and buildings and surrounding environment, attribute information, corresponding geographical spatial data and accurately towards;
2) 3dsmax modeling: analogue formation on *** map projection basis;
The model made comprises: the power equipment that electrical network is relevant and buildings, also comprises natural object and the creature of equipment and the existence of buildings surrounding environment;
Wherein, power equipment and buildings comprise: the house that transformer station, bar, tower, switch, transformer, automatic circuit, ground wire, fence, warning sign, railway, road and electric power are applied;
Natural object comprises: the geography that equipment and buildings surrounding exist moves towards present situation, scissors crossing, tall and big trees, the mountain ridge, hills, river;
Creature comprises: the artificial various buildings that equipment and buildings surrounding exist;
3) obj model is derived: derive the model format that Run-time engine can identify;
4) polishing, texture is baked and banked up with earth: on model, render the texture under certain light condition, and adjust UV coordinate;
5) increase surrounding environment object: mainly refer to the ornament minimodels such as road, flower bed, air-conditioning, adopt reproducible model to reduce scene complexity as far as possible;
6) derive document scene: final structured file of deriving whole scene, the position comprising the obj model of deriving and each model loads relation;
7) view operation
1.: calculate the current transform matrix of skeleton cartoon, the current data of vertex animation, the current location animation related data of video camera movement;
2.: calculate the state that particIe system is current;
3.: calculate the transformation matrix that visual angle is new;
4.: upgrade modelViewmatrix, projectionmatrix according to visual angle matrix4;
5.: carry out scene rejecting according to new view frustums, general outdoor scene is Octree cutting, indoor scene is binary tree cutting;
6.: the orientation upgrading each node, the attributes such as position, scale;
8) render scenes
7.: play up the mesh in renderQueue successively, divide into groups to carry out playing up and then raising the efficiency according to shader etc., the feature of GPU is that parallel computation is fast, but very time-consuming during switching state;
8.: for GPU binds vertex data;
9.: the parameter that vertixshader and pixelshader is set;
10.: perform shader program.
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| CN116310009A (en) * | 2023-05-17 | 2023-06-23 | 海马云（天津）信息技术有限公司 | Decoration processing method and device for digital virtual object and storage medium |
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