大規(guī)模風(fēng)電直流外送系統(tǒng)的仿真與協(xié)調(diào)控制策略研究
發(fā)布時間：2018-07-28 19:49
【摘要】：我國風(fēng)能資源分布集中,且多處于西部、北部和沿海地區(qū)。新疆哈密、甘肅酒泉、蒙東蒙西等地區(qū)都是我國風(fēng)能資源最豐富的地區(qū),非常適合進行大基地集中式開發(fā)。由于風(fēng)電出力具有波動性和隨機性,大規(guī)模風(fēng)電并網(wǎng)需要電力系統(tǒng)具有較強的調(diào)峰平衡能力。而我國西部、北部地區(qū)電力系統(tǒng)規(guī)模較小,且熱電機組比重高,調(diào)峰能力不足,要實現(xiàn)風(fēng)電大規(guī)模集中開發(fā)與高效利用,需要加強風(fēng)電消納研究,統(tǒng)籌考慮風(fēng)電基地與外送通道建設(shè),同步建設(shè)跨區(qū)特高壓輸電工程,將西部和北部地區(qū)的風(fēng)電輸送到華北、華中、華東等用電負荷中心地區(qū)消納,“開發(fā)大風(fēng)電、融入大電網(wǎng)”是中國風(fēng)電發(fā)展的必然要求。 特高壓直流輸電的主要特點是輸送容量大、距離遠等。到目前為止,我國已經(jīng)有3個特高壓直流工程投入運行,多個工程正在建設(shè)和規(guī)劃之中。特高壓直流輸電將成為未來風(fēng)電遠距離外送的重要方式,是緩解能源運力不足的有效手段,也是促進大規(guī)模風(fēng)電基地建設(shè)的必要條件。利用直流輸電系統(tǒng)有功與無功的靈活控制功能,適應(yīng)風(fēng)電的波動特性及故障特性,可以提高大規(guī)模風(fēng)電接入系統(tǒng)的安全穩(wěn)定性。 論文主要研究內(nèi)容可歸納為以下三部分： (1)以電磁暫態(tài)實時數(shù)字仿真系統(tǒng)HYPERSIM為平臺,利用電壓源型換流器(Voltage Source Converter, VSC)物理仿真裝置,通過數(shù)模混合仿真技術(shù)建立直驅(qū)式同步風(fēng)力發(fā)電機組數(shù)�；旌戏抡婺Ｐ�,通過暫穩(wěn)態(tài)仿真試驗,對該模型在風(fēng)速波動下的動態(tài)特性以及電網(wǎng)故障時的動態(tài)響應(yīng)進行校核。 (2)以電磁暫態(tài)實時數(shù)字仿真系統(tǒng)HYPERSIM為研究平臺,用直流輸電物理仿真裝置模擬外送風(fēng)電的特高壓直流輸電系統(tǒng),利用雙向功率連接數(shù)�；旌戏抡婕夹g(shù),模擬功率在數(shù)字和物理模型之間的交換,建立大規(guī)模風(fēng)電直流外送的數(shù)�；旌戏抡嫦到y(tǒng),并通過故障試驗對仿真系統(tǒng)響應(yīng)特性進行校核。 (3)基于數(shù)模混合實時仿真平臺對特高壓直流與風(fēng)電外送系統(tǒng)的相互影響和協(xié)調(diào)控制策略進行深入研究,并通過數(shù)�；旌蠈崟r仿真試驗,驗證協(xié)調(diào)控制策略的有效性。 論文的主要創(chuàng)新點是： (1)建立了直驅(qū)風(fēng)機數(shù)模混合仿真模型,具備與實際風(fēng)機換流器控制器連接研究風(fēng)機接入電網(wǎng)動態(tài)響應(yīng)特性的能力,可真實反映風(fēng)機實際控制器動態(tài)特性。 (2)構(gòu)建了大規(guī)模風(fēng)電直流外送系統(tǒng)的數(shù)模混合實時仿真平臺,從規(guī)模和精確度兩方面滿足研究要求。 (3)評估風(fēng)火打捆系統(tǒng)與直流輸電之間的相互影響程度,提出了提高大規(guī)模風(fēng)電直流外送系統(tǒng)故障恢復(fù)特性的交直流協(xié)調(diào)控制策略。 論文堅持理論與實際相結(jié)合,旨在針對我國電網(wǎng)發(fā)展中遇到的實際問題,提出可行的解決措施。論文研究成果解決了精確實時模擬風(fēng)電機組中全控器件動態(tài)特性的技術(shù)難題,為風(fēng)電機組實際控制器的策略及參數(shù)優(yōu)化研究和接入電網(wǎng)的動態(tài)特性檢驗提供了必要的技術(shù)手段；解決了在模擬大規(guī)模風(fēng)電接入電網(wǎng)的同時精確模擬外送風(fēng)電的直流輸電系統(tǒng)動態(tài)響應(yīng)特性的技術(shù)難題,為大規(guī)模風(fēng)電接入電網(wǎng)及直流輸電對大規(guī)模風(fēng)電適應(yīng)性、交直流協(xié)調(diào)控制等研究提供了必要的研究手段；提出了有效可行的風(fēng)火打捆直流外送系統(tǒng)交直流協(xié)調(diào)控制策略,為大規(guī)模風(fēng)電直流外送系統(tǒng)的規(guī)劃、設(shè)計和運行提供了必要的技術(shù)支撐。
[Abstract]:China's wind energy resources are concentrated in the west, in the north and in the coastal areas. Xinjiang Hami, Gansu Jiuquan, Mengxi and other regions are the most abundant area of wind energy resources in China. It is very suitable for the centralized development of large bases. Due to the volatility and the machine of wind power output, the large-scale wind power grid connected to the power system needs to be compared. In the western part of China, the power system in the north of China is small, and the proportion of the electric power unit is high and the peak regulation ability is insufficient. To realize the centralized development and efficient utilization of wind power, the wind power consumption research should be strengthened, the construction of wind power base and the outer channel construction should be considered as a whole, and the construction of the trans regional UHV transmission project should be constructed in the west, and the West will be constructed simultaneously. The wind power in the Ministry and the northern region is transported to North China, central China, and East China and other power load centers, and "developing the wind power and integrating the large power grid" is the inevitable requirement of the development of China's wind power.
The main characteristics of UHVDC transmission are large capacity and long distance. So far, 3 UHVDC projects have been put into operation in China, and many projects are being built and planned. UHVDC transmission will become an important way of future wind power transmission, and it is an effective means to alleviate the shortage of energy. It is necessary to promote the construction of large-scale wind power base. Using the flexible control function of the active and reactive power of the DC transmission system to adapt to the fluctuating characteristics and fault characteristics of the wind power, the safety and stability of the large-scale wind power access system can be improved.
The main research contents of this paper can be summarized as follows:
(1) taking the electromagnetic transient real-time digital simulation system HYPERSIM as the platform, using the Voltage Source Converter (VSC) physical simulation device, the mixed simulation model of the direct drive synchronous wind generator group is set up by the mixed simulation technology of digital mode. The dynamic simulation test of the transient state is used to simulate the dynamics of the model under the fluctuation of wind speed. Characteristic and dynamic response of power grid fault are checked.
(2) taking the electromagnetic transient real time digital simulation system HYPERSIM as the research platform, the UHVDC transmission system with external wind power is simulated with the physical simulation device of HVDC transmission, and the hybrid simulation technology of bidirectional power connection digital analog is used to simulate the exchange of power between the digital and physical models, and the multi mode mixing of large scale wind power DC outflow is established. The simulation system is checked and the response characteristics of the simulation system are checked through the fault test.
(3) based on the digital analog hybrid real-time simulation platform, the interaction and coordination control strategy of UHV DC and wind power supply system are studied, and the effectiveness of the coordinated control strategy is verified by the mixed real-time simulation test.
The main innovation of this paper is:
(1) a mixed simulation model of the direct fan is established. It has the ability to connect with the controller of the actual fan converter to study the dynamic response characteristic of the fan to the power grid. It can truly reflect the dynamic characteristics of the actual controller of the fan.
(2) a real-time mixed mode real-time simulation platform for large-scale wind power DC transmission system is constructed, which meets the research requirements from two aspects of scale and accuracy.
(3) to evaluate the mutual influence between the wind fire baling system and the direct current transmission, the AC / DC coordinated control strategy is proposed to improve the fault recovery characteristics of the large-scale wind power DC outflow system.
In order to solve the practical problems encountered in the development of China's power grid, the paper puts forward feasible solutions to the actual problems encountered in the development of China's power grid. The research results of the paper have solved the technical problem of accurate and real-time simulation of the dynamic characteristics of the fully controlled devices in the wind turbine, and for the optimization of the strategy and parameters of the actual controller of the wind turbine and the access to the power grid. The dynamic characteristic test provides the necessary technical means, and solves the technical problem of the dynamic response characteristic of the DC transmission system with the simulation of the large scale wind power access to the power grid and the accurate simulation of the outflow wind power, which provides the need for large-scale wind power access to the power grid and the DC transmission to the large-scale wind power adaptation, the AC and DC coordinated control and so on. The necessary technical support is provided for the planning, design and operation of the large-scale wind power DC outflow system.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2014
【分類號】：TM614
本文編號：2151399
[Abstract]:China's wind energy resources are concentrated in the west, in the north and in the coastal areas. Xinjiang Hami, Gansu Jiuquan, Mengxi and other regions are the most abundant area of wind energy resources in China. It is very suitable for the centralized development of large bases. Due to the volatility and the machine of wind power output, the large-scale wind power grid connected to the power system needs to be compared. In the western part of China, the power system in the north of China is small, and the proportion of the electric power unit is high and the peak regulation ability is insufficient. To realize the centralized development and efficient utilization of wind power, the wind power consumption research should be strengthened, the construction of wind power base and the outer channel construction should be considered as a whole, and the construction of the trans regional UHV transmission project should be constructed in the west, and the West will be constructed simultaneously. The wind power in the Ministry and the northern region is transported to North China, central China, and East China and other power load centers, and "developing the wind power and integrating the large power grid" is the inevitable requirement of the development of China's wind power.
The main characteristics of UHVDC transmission are large capacity and long distance. So far, 3 UHVDC projects have been put into operation in China, and many projects are being built and planned. UHVDC transmission will become an important way of future wind power transmission, and it is an effective means to alleviate the shortage of energy. It is necessary to promote the construction of large-scale wind power base. Using the flexible control function of the active and reactive power of the DC transmission system to adapt to the fluctuating characteristics and fault characteristics of the wind power, the safety and stability of the large-scale wind power access system can be improved.
The main research contents of this paper can be summarized as follows:
(1) taking the electromagnetic transient real-time digital simulation system HYPERSIM as the platform, using the Voltage Source Converter (VSC) physical simulation device, the mixed simulation model of the direct drive synchronous wind generator group is set up by the mixed simulation technology of digital mode. The dynamic simulation test of the transient state is used to simulate the dynamics of the model under the fluctuation of wind speed. Characteristic and dynamic response of power grid fault are checked.
(2) taking the electromagnetic transient real time digital simulation system HYPERSIM as the research platform, the UHVDC transmission system with external wind power is simulated with the physical simulation device of HVDC transmission, and the hybrid simulation technology of bidirectional power connection digital analog is used to simulate the exchange of power between the digital and physical models, and the multi mode mixing of large scale wind power DC outflow is established. The simulation system is checked and the response characteristics of the simulation system are checked through the fault test.
(3) based on the digital analog hybrid real-time simulation platform, the interaction and coordination control strategy of UHV DC and wind power supply system are studied, and the effectiveness of the coordinated control strategy is verified by the mixed real-time simulation test.
The main innovation of this paper is:
(1) a mixed simulation model of the direct fan is established. It has the ability to connect with the controller of the actual fan converter to study the dynamic response characteristic of the fan to the power grid. It can truly reflect the dynamic characteristics of the actual controller of the fan.
(2) a real-time mixed mode real-time simulation platform for large-scale wind power DC transmission system is constructed, which meets the research requirements from two aspects of scale and accuracy.
(3) to evaluate the mutual influence between the wind fire baling system and the direct current transmission, the AC / DC coordinated control strategy is proposed to improve the fault recovery characteristics of the large-scale wind power DC outflow system.
In order to solve the practical problems encountered in the development of China's power grid, the paper puts forward feasible solutions to the actual problems encountered in the development of China's power grid. The research results of the paper have solved the technical problem of accurate and real-time simulation of the dynamic characteristics of the fully controlled devices in the wind turbine, and for the optimization of the strategy and parameters of the actual controller of the wind turbine and the access to the power grid. The dynamic characteristic test provides the necessary technical means, and solves the technical problem of the dynamic response characteristic of the DC transmission system with the simulation of the large scale wind power access to the power grid and the accurate simulation of the outflow wind power, which provides the need for large-scale wind power access to the power grid and the DC transmission to the large-scale wind power adaptation, the AC and DC coordinated control and so on. The necessary technical support is provided for the planning, design and operation of the large-scale wind power DC outflow system.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2014
【分類號】：TM614
【參考文獻】
相關(guān)期刊論文 前10條
1 劉洪濤,徐政;基于三電平電壓源換流器的高壓直流輸電系統(tǒng)的控制策略研究[J];電工技術(shù)學(xué)報;2003年03期
2 賀益康;周鵬;;變速恒頻雙饋異步風(fēng)力發(fā)電系統(tǒng)低電壓穿越技術(shù)綜述[J];電工技術(shù)學(xué)報;2009年09期
3 蔚蘭;陳國呈;宋小亮;曹大鵬;吳國祥;;一種雙饋感應(yīng)風(fēng)力發(fā)電機低電壓穿越的控制策略[J];電工技術(shù)學(xué)報;2010年09期
4 周宏林;楊耕;耿華;;遠距離大型DFIG風(fēng)電場的混合型HVDC建模及控制[J];電工技術(shù)學(xué)報;2010年12期
5 黃怡;王智冬;劉建琴;張琳;李雋;;特高壓直流輸送風(fēng)電的經(jīng)濟性分析[J];電力建設(shè);2011年05期
6 李庚銀,呂鵬飛,李廣凱,周明;輕型高壓直流輸電技術(shù)的發(fā)展與展望[J];電力系統(tǒng)自動化;2003年04期
7 劉其輝,賀益康,趙仁德;變速恒頻風(fēng)力發(fā)電系統(tǒng)最大風(fēng)能追蹤控制[J];電力系統(tǒng)自動化;2003年20期
8 賀益康,鄭康,潘再平,劉其輝;交流勵磁變速恒頻風(fēng)電系統(tǒng)運行研究[J];電力系統(tǒng)自動化;2004年13期
9 趙成勇,李金豐,李廣凱;基于有功和無功獨立調(diào)節(jié)的VSC-HVDC控制策略[J];電力系統(tǒng)自動化;2005年09期
10 胡家兵;孫丹;賀益康;趙仁德;;電網(wǎng)電壓驟降故障下雙饋風(fēng)力發(fā)電機建模與控制[J];電力系統(tǒng)自動化;2006年08期
，本文編號：2151399
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