PSCAD_4_Creating Custom Components

电力系统数字仿真软件应用 王西田副教授 x.t.wang@126.com 电信大楼1-322：34204298 Terminology and Definitions ¾ Components A component (sometimes referred to simply as a 'block') is essentially a graphical representation of a device model, and is the basic building block of circuits created in PSCAD. Components are usually designed to perform a specific function, and can exist as either electrical, control, documentary or simply decorative in type. 9Definitions A definition is essentially the underlying 'blueprint' of a component. 9Instances A component instance is a graphical 'copy' of the component definition, and is normally what is seen and used in a project. ¾Modules Modules are a special type of component, where the basic function of the component model is described using a combination of other basic components, rather than code. Also referred to as 'sub-pages' or 'page components', modules are also defined by a definition, but presently may only posses one instance per definition. Terminology and Definitions ¾ Projects PSCAD allows the user to store everything involved in a particular simulation (except output files) into one file called a project. Projects can contain stored component definitions, on-line plots and controls, and of course the graphically constructed system itself. There are two types of projects in PSCAD: Library and case projects. 9Case Case projects are saved with the file extension '*.psc'. In addition to performing the functions of a library project, cases may be compiled, built and run. Simulated results can be viewed directly within the project through on-line meters and/or plots. 9Library Library projects are saved with the file extension '*.psl'. Library projects are used primarily to store component definitions and viewable component instances. Instances of component definitions stored in a library, can be used in any case project, provided that the library is loaded first. The Design Editor The Design Editor includes a tab bar at the bottom of its window, which includes tabs for the convenient access of information pertinent to the project at hand. Three of the tabs represent the three main sections of the Component Definition, and will become enabled when the user decides to edit a particular Component Definition. These are: Graphic Parameters Script Main Program Structure PSCAD Script Internal Global Variables 9 STORx Arrays 9 Accessing Network Quantities 9 Electric Network Interface Variables STORx Arrays Include Files 9nd.h 9emstor.h 9s0.h 9s1.h 9s2.h 9branches.h 9emtconst.h 9fnames.h Model Types 9Control Models 9Electric Models Tutorial 12 912-1 Adder 直接计算的控制模型 912-2 Integrator 含存储变量的控制模型 912-3 Electrical Component – A simple DC Machine 912-4 How to use .obj or .o file 知识产权保护手段 MATLAB Interface Examples ..\examples\matlab\ Important things: 9The MATLAB Interface is only compatible with the dynamic version of EMTDC. That is, it will not function when using the free EGCS/GNU Fortran 77 Compiler. 9MATLAB must be installed on your computer in order to use the MATLAB interface! 9PSCAD can be interfaced with both MATLAB versions 5 and 6 library files. 电力系统数字仿真软件应用 Terminology and Definitions Terminology and Definitions The Design Editor Main Program Structure PSCAD Script Internal Global Variables STORx Arrays Include Files Model Types Tutorial 12 MATLAB Interface Examples