PSASP与MATLAB联合仿真方法及应用研究
发布时间：2018-07-23 19:10
【摘要】：近年来,大电网互联和远距离大容量输电不断发展,更多的新型元件接入电网运行,当电力系统中存在直流系统、电力电子设备或者复杂的控制系统时,应用单一的仿真软件同时考虑复杂的电力电子器件、控制系统的详细建模以及一定数量的传统元件进行系统分析变得十分的困难。分析PSASP与MATLAB软件各自的适用范围,实现二者的联合仿真具有十分重要的实际意义。本文以国家电网公司重大专项项目《大电网仿真关键技术深化研究》为依托,以中国电力科学研究院综合程序室(PSASP开发商)为技术支撑,针对现有仿真软件PSASP的开放式仿真平台关键技术,重点研究PSASP与MATLAB的联合仿真方法,从联合仿真的原理、接口技术、算例设计与仿真应用等方面进行分析研究。本文在对PSASP与MATLAB的应用领域和数据特点进行分析的基础上,首次提出了PSASP与MATLAB的联合仿真方法,研究PSASP网络与MATLAB模型的等值电路及其求解过程,针对二者数据形式不一致的问题提出了数据转换的方法。应用PSASP的用户程序接口,在用户程序中调用MATLAB引擎,通过API函数实现了PSASP程序与MATLAB程序联合仿真的接口方法,对稳态运行与网络结构改变时刻采用不同的接口时序来提高计算的精度,并能够在MATLAB中以更加精细的步长进行仿真,实现了混合步长仿真。最后,在MATLAB中搭建了光伏并网模型并将其接入PSASP进行联合仿真,设计光伏发电并网的PSASP与MATLAB联合仿真算例。通过仿真分析,验证了PSASP与MATLAB联合仿真方法的可行性和接口技术的正确性。
[Abstract]:In recent years, the interconnection of large power grid and transmission of long distance and large capacity have been developing continuously. More and more new components are connected to the power network. When there are DC system, power electronic equipment or complex control system in power system, It is very difficult to use a single simulation software to consider the complex power electronic devices, the detailed modeling of the control system and the analysis of a certain number of traditional components. It is very important to analyze the scope of application of PSASP and MATLAB software and to realize the joint simulation between them. This paper is based on the important project of State Grid Company, "deepening Research on key Technologies of large Power Grid Simulation", and takes the Comprehensive Program Room (PSASP developer) of the Chinese Academy of Electric Power Sciences as the technical support. Aiming at the key technology of open simulation platform of PSASP, this paper focuses on the joint simulation method of PSASP and MATLAB, and analyzes the principle of joint simulation, interface technology, example design and simulation application. Based on the analysis of the application field and data characteristics of PSASP and MATLAB, this paper presents the joint simulation method of PSASP and MATLAB for the first time, and studies the equivalent circuit of PSASP network and MATLAB model and its solution process. A method of data conversion is proposed to solve the problem of inconsistent data form. By using the user program interface of PSASP, the MATLAB engine is called in the user program, and the interface method of the joint simulation of PSASP program and MATLAB program is realized by API function. Different interface timing is used to improve the accuracy of calculation for steady state operation and network structure changing time, and can be simulated in MATLAB with more fine step size, and the hybrid step size simulation is realized. Finally, a grid-connected photovoltaic model is built in MATLAB and connected to PSASP for joint simulation. An example of PSASP and MATLAB joint simulation is designed for grid-connected photovoltaic power generation. Through simulation analysis, the feasibility of PSASP and MATLAB joint simulation method and the correctness of interface technology are verified.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM743
本文编号：2140375
[Abstract]:In recent years, the interconnection of large power grid and transmission of long distance and large capacity have been developing continuously. More and more new components are connected to the power network. When there are DC system, power electronic equipment or complex control system in power system, It is very difficult to use a single simulation software to consider the complex power electronic devices, the detailed modeling of the control system and the analysis of a certain number of traditional components. It is very important to analyze the scope of application of PSASP and MATLAB software and to realize the joint simulation between them. This paper is based on the important project of State Grid Company, "deepening Research on key Technologies of large Power Grid Simulation", and takes the Comprehensive Program Room (PSASP developer) of the Chinese Academy of Electric Power Sciences as the technical support. Aiming at the key technology of open simulation platform of PSASP, this paper focuses on the joint simulation method of PSASP and MATLAB, and analyzes the principle of joint simulation, interface technology, example design and simulation application. Based on the analysis of the application field and data characteristics of PSASP and MATLAB, this paper presents the joint simulation method of PSASP and MATLAB for the first time, and studies the equivalent circuit of PSASP network and MATLAB model and its solution process. A method of data conversion is proposed to solve the problem of inconsistent data form. By using the user program interface of PSASP, the MATLAB engine is called in the user program, and the interface method of the joint simulation of PSASP program and MATLAB program is realized by API function. Different interface timing is used to improve the accuracy of calculation for steady state operation and network structure changing time, and can be simulated in MATLAB with more fine step size, and the hybrid step size simulation is realized. Finally, a grid-connected photovoltaic model is built in MATLAB and connected to PSASP for joint simulation. An example of PSASP and MATLAB joint simulation is designed for grid-connected photovoltaic power generation. Through simulation analysis, the feasibility of PSASP and MATLAB joint simulation method and the correctness of interface technology are verified.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM743
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