Numerical simulation open-type application program interface of electric power system

Abstract

The invention discloses a numerical simulation open-type application program interface of an electric power system, namely a network structure based on a C / S (Client / Server) mode. The interaction between a client side and a server end is realized by virtue of a message packing unit, a message transmission unit and a message analysis unit which are arranged at the client side and the server side, wherein the message packing unit is in charge of managing and packing a message required to be sent according to a unified format; the message transmission unit is in charge of transmitting the packaged message to a receiving terminal through a TCP / IP (Transmission Control Protocol / Internet Protocol); and the message analysis unit is provided with a normalized function table and used for looking up the received message, determining a function and thus processing parameters or return values in the message, wherein the structure of the function table is as follows: function name | parameter number | each parameter type | return value number | each return value type. The network structure based on the C / S mode can be used for realizing the function separation of a user and software, so that the user (the client side) can concentrate on the development the of an advanced analysis function, a software calculation engine (the server end) can be applied more efficiently and maintained and updated simpler and more conveniently, and therefore, the open-type structure can be used for greatly improving the efficiency and flexibility of developing the advanced analysis function of the electric power system.

Description

technical field [0001] The invention relates to an open application program interface for power system numerical simulation. Background technique [0002] Numerical simulation plays an irreplaceable role in power system planning, operation and security defense. A complete model, acceptable calculation accuracy and efficiency are the basic requirements for power system numerical simulation programs. With the continuous increase of power system scale and the diverse analysis needs of users, it is of great significance to provide power system simulation programs with good openness in order to enable users to quickly and flexibly analyze and solve various problems. [0003] Software openness is essentially a specification-compliant interface, which may be defined and unique to the software itself, or may be a publicly adopted standard. As far as power system analysis software is concerned, user-defined modeling (User-Defined Modeling, UDM), application program interface (Appli...

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Problems solved by technology

[0009] Obviously, this architecture puts the computing engine completely on the server side, which has two advantages: first, it makes the computing engine independent of the user's hardware equipment, which solves the above-mentioned problems caused by the uneven level of client hardware equipment; secondly, The upgrade and maintenance of the calculation engine is independent of the user. As long as the function interface remains unchanged, when the software calculation engine needs to be improved, it is only necessary to update the analysis software on the server side, or change the internal code to regenerate the executable program EXE, or it is simpler Replace a dynamic link library (Dynamic Link Library, DLL), that is, the update is completed, freeing the user from the upgrade management of the computing engine

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