【摘要】：近年來,大電網(wǎng)互聯(lián)和遠(yuǎn)距離大容量輸電不斷發(fā)展,更多的新型元件接入電網(wǎng)運(yùn)行,當(dāng)電力系統(tǒng)中存在直流系統(tǒng)、電力電子設(shè)備或者復(fù)雜的控制系統(tǒng)時(shí),應(yīng)用單一的仿真軟件同時(shí)考慮復(fù)雜的電力電子器件、控制系統(tǒng)的詳細(xì)建模以及一定數(shù)量的傳統(tǒng)元件進(jìn)行系統(tǒng)分析變得十分的困難。分析PSASP與MATLAB軟件各自的適用范圍,實(shí)現(xiàn)二者的聯(lián)合仿真具有十分重要的實(shí)際意義。本文以國(guó)家電網(wǎng)公司重大專項(xiàng)項(xiàng)目《大電網(wǎng)仿真關(guān)鍵技術(shù)深化研究》為依托,以中國(guó)電力科學(xué)研究院綜合程序室(PSASP開發(fā)商)為技術(shù)支撐,針對(duì)現(xiàn)有仿真軟件PSASP的開放式仿真平臺(tái)關(guān)鍵技術(shù),重點(diǎn)研究PSASP與MATLAB的聯(lián)合仿真方法,從聯(lián)合仿真的原理、接口技術(shù)、算例設(shè)計(jì)與仿真應(yīng)用等方面進(jìn)行分析研究。本文在對(duì)PSASP與MATLAB的應(yīng)用領(lǐng)域和數(shù)據(jù)特點(diǎn)進(jìn)行分析的基礎(chǔ)上,首次提出了PSASP與MATLAB的聯(lián)合仿真方法,研究PSASP網(wǎng)絡(luò)與MATLAB模型的等值電路及其求解過程,針對(duì)二者數(shù)據(jù)形式不一致的問題提出了數(shù)據(jù)轉(zhuǎn)換的方法。應(yīng)用PSASP的用戶程序接口,在用戶程序中調(diào)用MATLAB引擎,通過API函數(shù)實(shí)現(xiàn)了PSASP程序與MATLAB程序聯(lián)合仿真的接口方法,對(duì)穩(wěn)態(tài)運(yùn)行與網(wǎng)絡(luò)結(jié)構(gòu)改變時(shí)刻采用不同的接口時(shí)序來提高計(jì)算的精度,并能夠在MATLAB中以更加精細(xì)的步長(zhǎng)進(jìn)行仿真,實(shí)現(xiàn)了混合步長(zhǎng)仿真。最后,在MATLAB中搭建了光伏并網(wǎng)模型并將其接入PSASP進(jìn)行聯(lián)合仿真,設(shè)計(jì)光伏發(fā)電并網(wǎng)的PSASP與MATLAB聯(lián)合仿真算例。通過仿真分析,驗(yàn)證了PSASP與MATLAB聯(lián)合仿真方法的可行性和接口技術(shù)的正確性。
[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.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM743

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