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电力系统模拟软件PSCAD 4.5.0破解版下载
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PSCAD是一种有效的用户图形界面,能够显著地提高电力系统电磁暂态模拟研究的效率。利用PSCAD 家族的软件工具,使得电力系统工程师能够充分利用现代微机工作站的资源, 更为有效地使用马尼托巴高压直流研究中心的EMTDC 暂态模拟软件。该族软件还可作为该中心的实时数字模拟器(RTDS)的用户界面。
PSCAD is an effective user interface and can significantly improve the efficiency of electromagnetic transient simulation of power system. The PSCAD family of software tools enable power system engineers to make full use of the resources of modern microcomputer workstations and more effectively use the EMTDC transient simulation software of Manitoba HVDC research center. The software can also serve as a user interface for the center's real-time digital simulator (RTDS). PSCAD is composed of the following software modules: File management system The first software module that users encounter when involving PSCAD is the file management system. A hierarchical structure of engineering/calculation/files is used to represent the database structure of power system simulation research conducted by users. If authorized, the database can be accessed so that different users on the local network can share the same database. From the file management software module, operations such as backup, storage, file editing, copy and delete can be performed directly. Other software modules of PSCAD can be invoked by selecting the appropriate menu in the upper right corner of the file management module's screen. In many cases, all software modules are activated at the same time. The modeling (DRAFT) module The modeling package is the most effective of the PSCAD family of programs. With the help of the modeling package, users can use the graphical method to build the power system model that needs to be simulated. By selecting different features, the modeling package can prepare the necessary files for EMTDC or RTDS simulation studies. The power system component image is located in the palette (right of the modeling window) and can be moved to the canvas (left) by interconnecting the component model The power system model is completed. The parameters required by the different component models can be entered directly from the menu that appears on the screen when these models are invoked. The power system model with a large number of interconnected components is also easy to handle because the canvas section can be divided into many layers and scrolled across the screen. When the user has completed the model construction, hard copies can be output through the laser printer based on PS format or the plotter that can accept the hp-gl command. T-LINE and CABLE modules The calculation process of the data required to determine the traveling wave model of overhead transmission lines and cables is rather complicated. In order to determine the transformation matrix, mode transmission time and wave impedance, eigenvalue analysis is needed. In order to complete this analysis, the t-line and CABLE modules are required. A single frequency mode model or a complete frequency-related traveling-wave model can be generated by function selection. The data required for the overhead line model include the spatial relative position of the conductor, the radius of the conductor and the resistivity. For cables, the radius and characteristics of each conductive layer and insulation layer are required. The data generated by the t-line and CABLE modules can be directly input into the PSCAD's DRAFT module. RUN TIME module The EMTDC operator console software module and RTDS console software module in the running module can respectively provide control operation function and data collection system function for running EMTDC and RTDS. The software provides a sophisticated interface that allows the user to load, start, or stop a simulation and communicate with it during the simulation. The use of a variety of instruments and simulation process data online mapping allows users to obtain real-time feedback on relevant simulation calculations. The dynamic process triggered by the user, such as setting changes, switching operations and fault triggering, can be performed by manipulating the sliding contacts, potentiometers, switches and buttons. Single curve plot and MULTIPLOT modules The analysis and drawing of data generated by EMTDC and RTDS is carried out through the single curve drawing module. Data can be calibrated and general format set. The data used for mapping can be directly analyzed by Fourier analysis. If you want to process large amounts of data, you can programmatically form an automatic processing sequence. The multi-curve drawing module can arrange the curve drawn by the single-curve drawing module into a suitable report application. Multiple curves can be combined on a sheet of paper. Users can directly process the curve and add the required text description on the paper surface and draw other beautification marks. EMTDC EMTDC is a software based electromagnetic transient simulation program, which can be called through PSCAD. The user can effectively assemble any power system model and structure imaginable by calling library modules provided with the EMTDC master program or by using the meta-component model developed by the user himself. One of the strengths of EMTDC is its ability to more easily simulate complex power systems, including dc transmission systems and their associated control systems. The research scope of the simulation using EMTDC is as follows: General electromagnetic transient study of power system Dc transmission structure and control FACTS(flexible ac transmission system) component model Study on torque effect and self excitation of synchronous generator and induction motor Study of static compensator Nonlinear control system study Transformer saturation studies, such as ferromagnetic oscillations and core saturation instability studies Insulation fit study Study on harmonic interaction Development of new control system principles Steep front wave analysis From the beginning to the completion of the EMTDC calculation, the following steps are included: 1) use the file management system to generate an engineering and calculation title 2) use the modeling module to establish the power system model 3) EMTDC simulation calculation was conducted by using the operation module 4) analyze the simulation results through single curve drawing and generate simulation results graphics that can be directly used in research reports by using multi-curve drawing module RTDS Real - time digital simulator (RTDS) is constructed by using parallel digital processing technology. The well-known electromagnetic transient solution methods used in EMTP and EMTDC software are also used in RTDS to simulate power systems. A simulator was developed using RTDS hardware and PSCAD software to simulate large interconnected power systems including HVDC systems. The actual dc control system can be interlinked with the simulator to conduct simulation tests before system commissioning or to help engineers familiarize themselves with new control concepts. The combination of RTDS and PSCAD is also used in actual relay closed-loop testing. By amplifying the voltage and current signals of the analog channel of the simulator, system failures can be simulated and the response of the relay can be observed. The contact of the relay can be used to trigger the switching action in the simulator. Networking and industrial standards Because PSCAD adheres strictly to industrial standards such as UNIX, state grid, PS graphics, and X window standards, it ensures that the software can run on different microcomputer workstations. Local network technology allows users to access a common database. The data and results of a simulation study conducted by one user can be invoked by another user if the latter is properly authorized. In addition to a common database, computer resources can be Shared between users. PSCAD designs employ specialized techniques that allow high-performance network servers or lightly loaded workstations to be scheduled to be used for large amounts of data simulation calculations, while user workstations can be used to prepare new simulation calculations or to conduct actual simulation results monitoring. Resources such as printers and plotters are also available directly from PSCAD. Hardware requirements PSCAD is written to make it suitable for running on a microcomputer workstation based on the UNIX operating system with an X window environment. PSCAD has its own software support so that users do not need to install additional support software. The recommended system should have at least 16MB of internal RAM. The installed PSCAD software requires less than 10MB of disk storage space. The software supports both monochrome and color monitors. If you want to run EMTDC simulation software, you should provide a FORTRAN 77(F77) compiler. Hardcopy output is in PS format. The graphics in the modeling module can be output by the plotter receiving the hp-gl command. 免责申明: 本站仅提供学习的平台,所有资料均来自于网络,版权归原创者所有!本站不提供任何保证,并不承担任何法律责任,如果对您的版权或者利益造成损害,请提供相应的资质证明,我们将于3个工作日内予以删除。 |