LCC-HVDC和VSC-HVDC輸電系統(tǒng)的通用建模方法和運(yùn)行特性分析
發(fā)布時(shí)間：2019-04-11 06:56
【摘要】：隨著電力系統(tǒng)的發(fā)展需要和電力電子等技術(shù)的日趨完善,高壓直流輸電系統(tǒng)技術(shù)在遠(yuǎn)距離大容量輸電、海底電纜送電、電力系統(tǒng)非同步互聯(lián)等方面得到了快速廣泛的發(fā)展應(yīng)用。當(dāng)前的高壓直流輸電技術(shù)主要包括傳統(tǒng)的基于電網(wǎng)換相整流器高壓直流輸電技術(shù)LCC-HVDC和以全控型器件為基礎(chǔ)的電壓源換流器高壓直流輸電VSC-HVDC。隨著直流輸電工程的廣泛應(yīng)用,大規(guī)模交直流混合電網(wǎng)逐漸形成,電網(wǎng)的運(yùn)行特性更加復(fù)雜。因此需對(duì)傳統(tǒng)LCC-HVDC和VSC-HVDC系統(tǒng)的控制特性進(jìn)行分析,通過構(gòu)建合適的數(shù)學(xué)模型來研究復(fù)雜混合電網(wǎng)下的系統(tǒng)穩(wěn)定性和故障特性,為電網(wǎng)分析提供標(biāo)準(zhǔn)和參考依據(jù)。本文以高壓直流輸電技術(shù)為研究對(duì)象,針對(duì)傳統(tǒng)高壓直流輸電和電壓源換流器型直流輸電的通用化建模方法進(jìn)行分析研究,仿真分析了兩者在不同運(yùn)行工況下的運(yùn)行特性。主要工作如下:(1)針對(duì)傳統(tǒng)高壓直流輸電系統(tǒng),提出了典型LCC-HVDC輸電系統(tǒng)的通用化建模方法,完善了主電路、控制系統(tǒng)和直流線路建模方法,詳細(xì)分析了PSCAD/EMTDC環(huán)境下交流系統(tǒng)等值方法與參數(shù),列出了LCC-HVDC輸電系統(tǒng)主電路和控制電路的建模方法。所提出的典型LCC-HVDC輸電系統(tǒng)通用化建模方法能夠建立一種通用的、運(yùn)行特性與實(shí)際相符的傳統(tǒng)高壓直流輸電系統(tǒng)模型,能夠準(zhǔn)確地反映其運(yùn)行特性,為現(xiàn)有的交直流混合電網(wǎng)分析提供了一種標(biāo)準(zhǔn)化建模方法,具有一定的參考價(jià)值。(2)針對(duì)電壓源換流器型直流輸電系統(tǒng),提出了典型vsc-hvdc輸電系統(tǒng)的通用化建模方法,給出了典型系統(tǒng)的參數(shù)選擇,完善了換流站主電路、控制系統(tǒng)與直流線路的建模方法,提出了pscad/emtdc環(huán)境下典型vsc-hvdc輸電系統(tǒng)的模型系統(tǒng)結(jié)構(gòu),詳細(xì)地列出了該環(huán)境下主電路、控制系統(tǒng)和監(jiān)控模塊的建模方法,說明給出了pscad/emtdc環(huán)境下典型系統(tǒng)模型的全局變量意義。所提出的典型vsc-hvdc輸電系統(tǒng)的通用化建模方法能夠?yàn)関sc-hvdc輸電系統(tǒng)的建模與仿真提供一種通用化的方法和標(biāo)準(zhǔn),由此獲得的vsc-hvdc輸電系統(tǒng)運(yùn)行特性分析能夠?yàn)殡娋W(wǎng)潮流計(jì)算和穩(wěn)定性分析等傳統(tǒng)電網(wǎng)分析問題的解決提供一定的參考價(jià)值。(3)根據(jù)lcc-hvdc和vsc-hvdc輸電系統(tǒng)的通用化建模方法,分別建立了以銀東lcc-hvdc直流輸電工程和美國傳斯貝爾vsc-hvdc直流輸電工程的電磁暫態(tài)仿真模型。分析銀東直流輸電工程在正常、直流側(cè)故障和換相失敗時(shí)的運(yùn)行特性,研究美國傳斯貝爾直流輸電工程在啟動(dòng)、有功類指令值階躍和無功類指令值階躍工況下的運(yùn)行特性。這兩種案例分析分別利用lcc-hvdc和vsc-hvdc的通用化建模方法進(jìn)行分析,為兩種直流輸電系統(tǒng)的工程特性分析提供了一種簡單、可靠、統(tǒng)一的思路。
[Abstract]:With the development of power system and the perfection of power electronics and other technologies, HVDC transmission technology has been widely developed and applied in long-distance and large-capacity transmission, submarine cable transmission, power system asynchronous interconnection and so on. The current HVDC technology mainly includes the traditional HVDC technology LCC-HVDC based on the commutation rectifier and the HVDC VSC-HVDC. based on fully controlled devices. With the wide application of HVDC transmission project, large-scale AC-DC hybrid power grid is gradually formed, and the operation characteristics of the grid are more complex. Therefore, it is necessary to analyze the control characteristics of the traditional LCC-HVDC and VSC-HVDC systems. By constructing a suitable mathematical model to study the stability and fault characteristics of the complex hybrid power grid, it is necessary to provide the standard and reference for the analysis of the power network. Taking HVDC technology as the research object, this paper analyzes and studies the general modeling method of the traditional HVDC transmission and the voltage source converter type HVDC transmission, and analyzes the operating characteristics of the two under different operating conditions by simulation. The main work is as follows: (1) aiming at the traditional HVDC transmission system, the general modeling method of typical LCC-HVDC transmission system is proposed, and the modeling method of main circuit, control system and DC line is improved. The equivalent method and parameters of AC system in PSCAD/EMTDC environment are analyzed in detail. The modeling methods of main circuit and control circuit of LCC-HVDC transmission system are listed. The general modeling method proposed in this paper can establish a universal HVDC transmission system model, which is consistent with the actual operation characteristics, and can accurately reflect the operational characteristics of the LCC-HVDC transmission system. This paper provides a standardized modeling method for the analysis of AC / DC hybrid power grid, which has certain reference value. (2) for voltage source converter type HVDC transmission system, a general modeling method of typical vsc-hvdc transmission system is proposed. The parameter selection of typical system is given, the modeling method of main circuit, control system and DC line of converter station is improved, and the model system structure of typical vsc-hvdc transmission system in pscad/emtdc environment is put forward. The modeling methods of main circuit, control system and monitoring module in this environment are listed in detail, and the global variable meaning of typical system model in pscad/emtdc environment is explained. The general modeling method of typical vsc-hvdc transmission system can provide a general method and standard for the modeling and simulation of vsc-hvdc transmission system. The analysis of operation characteristics of vsc-hvdc transmission system can provide some reference value for solving traditional power grid analysis problems such as power flow calculation and stability analysis. (3) according to lcc-hvdc and vsc-hvdc transmission system. The general modeling method of the system, The electromagnetic transient simulation models of lcc-hvdc HVDC project and vsc-hvdc HVDC project are established respectively. This paper analyzes the operating characteristics of Yindong HVDC project under normal condition, DC side failure and commutation failure, and studies the operating characteristics of the transmission project under the conditions of starting up, active and reactive power command values step-by-step and reactive power-type instruction value step-by-step in the start-up of the transmission project in the United States of America. These two cases are analyzed by using the general modeling method of lcc-hvdc and vsc-hvdc, which provides a simple, reliable and unified way to analyze the engineering characteristics of the two HVDC systems.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM721.1
本文編號(hào)：2456180
[Abstract]:With the development of power system and the perfection of power electronics and other technologies, HVDC transmission technology has been widely developed and applied in long-distance and large-capacity transmission, submarine cable transmission, power system asynchronous interconnection and so on. The current HVDC technology mainly includes the traditional HVDC technology LCC-HVDC based on the commutation rectifier and the HVDC VSC-HVDC. based on fully controlled devices. With the wide application of HVDC transmission project, large-scale AC-DC hybrid power grid is gradually formed, and the operation characteristics of the grid are more complex. Therefore, it is necessary to analyze the control characteristics of the traditional LCC-HVDC and VSC-HVDC systems. By constructing a suitable mathematical model to study the stability and fault characteristics of the complex hybrid power grid, it is necessary to provide the standard and reference for the analysis of the power network. Taking HVDC technology as the research object, this paper analyzes and studies the general modeling method of the traditional HVDC transmission and the voltage source converter type HVDC transmission, and analyzes the operating characteristics of the two under different operating conditions by simulation. The main work is as follows: (1) aiming at the traditional HVDC transmission system, the general modeling method of typical LCC-HVDC transmission system is proposed, and the modeling method of main circuit, control system and DC line is improved. The equivalent method and parameters of AC system in PSCAD/EMTDC environment are analyzed in detail. The modeling methods of main circuit and control circuit of LCC-HVDC transmission system are listed. The general modeling method proposed in this paper can establish a universal HVDC transmission system model, which is consistent with the actual operation characteristics, and can accurately reflect the operational characteristics of the LCC-HVDC transmission system. This paper provides a standardized modeling method for the analysis of AC / DC hybrid power grid, which has certain reference value. (2) for voltage source converter type HVDC transmission system, a general modeling method of typical vsc-hvdc transmission system is proposed. The parameter selection of typical system is given, the modeling method of main circuit, control system and DC line of converter station is improved, and the model system structure of typical vsc-hvdc transmission system in pscad/emtdc environment is put forward. The modeling methods of main circuit, control system and monitoring module in this environment are listed in detail, and the global variable meaning of typical system model in pscad/emtdc environment is explained. The general modeling method of typical vsc-hvdc transmission system can provide a general method and standard for the modeling and simulation of vsc-hvdc transmission system. The analysis of operation characteristics of vsc-hvdc transmission system can provide some reference value for solving traditional power grid analysis problems such as power flow calculation and stability analysis. (3) according to lcc-hvdc and vsc-hvdc transmission system. The general modeling method of the system, The electromagnetic transient simulation models of lcc-hvdc HVDC project and vsc-hvdc HVDC project are established respectively. This paper analyzes the operating characteristics of Yindong HVDC project under normal condition, DC side failure and commutation failure, and studies the operating characteristics of the transmission project under the conditions of starting up, active and reactive power command values step-by-step and reactive power-type instruction value step-by-step in the start-up of the transmission project in the United States of America. These two cases are analyzed by using the general modeling method of lcc-hvdc and vsc-hvdc, which provides a simple, reliable and unified way to analyze the engineering characteristics of the two HVDC systems.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM721.1
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 湯廣福;賀之淵;龐輝;;柔性直流輸電工程技術(shù)研究、應(yīng)用及發(fā)展[J];電力系統(tǒng)自動(dòng)化;2013年15期
2 李爽;王志新;王國強(qiáng);;基于改進(jìn)粒子群算法的PIDNN控制器在VSC-HVDC中的應(yīng)用[J];中國電機(jī)工程學(xué)報(bào);2013年03期
3 何大清;蔡旭;;柔性直流輸電的動(dòng)態(tài)電流限幅控制[J];電網(wǎng)技術(shù);2012年01期
4 趙成勇;陳曉芳;曹春剛;敬華兵;;模塊化多電平換流器HVDC直流側(cè)故障控制保護(hù)策略[J];電力系統(tǒng)自動(dòng)化;2011年23期
5 梁海峰;李庚銀;周明;李廣凱;趙成勇;;電壓源換流器高壓直流輸電的動(dòng)態(tài)等效電路及其特性分析[J];中國電機(jī)工程學(xué)報(bào);2010年13期
6 宋新立;吳小辰;劉文焯;許愛東;卜廣全;金小明;;PSD-BPA暫態(tài)穩(wěn)定程序中的新直流輸電準(zhǔn)穩(wěn)態(tài)模型[J];電網(wǎng)技術(shù);2010年01期
7 張靜;徐政;王峰;;包含VDCCOL的VSC-HVDC改進(jìn)控制策略[J];電力系統(tǒng)自動(dòng)化;2008年22期
8 宋瑞華;周孝信;;基于電壓源換流器的高壓直流輸電系統(tǒng)的阻尼特性與阻尼控制[J];電網(wǎng)技術(shù);2008年05期
9 魏曉光;湯廣福;鄭健超;;電壓源高壓直流輸電離散模型及其控制策略[J];中國電機(jī)工程學(xué)報(bào);2007年28期
10 王晶芳;王智冬;李新年;胡濤;蔣衛(wèi)平;王明新;向孟奇;李煥明;;含特高壓直流的多饋入交直流系統(tǒng)動(dòng)態(tài)特性仿真[J];電力系統(tǒng)自動(dòng)化;2007年11期
相關(guān)博士學(xué)位論文 前2條
1 黃瑩;交直流電力系統(tǒng)動(dòng)態(tài)特性分析方法研究[D];浙江大學(xué);2005年
2 張桂斌;新型直流輸電及其相關(guān)技術(shù)研究[D];浙江大學(xué);2001年
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