摘要
±1100 k V特高压直流输电工程尚属首次提出,尤其是对于±1 100 k V的直流场设计,无成熟经验可借鉴,开展±1 100 k V导体计算和选型研究,有利于直流场的设计及工程的安全、可靠和经济运行。从电晕和合成场强两个方面对导体分别建立了数学计算模型,并利用matlab进行了仿真建模,计算了导体表面最大场强与起始电晕,计算了导体的空间合成场强,以及不同高度下的地面合成场强。根据计算的结果,结合工程实际,分户内布置和户外布置两种情况,分别给出了±1 100 k V的导体设计选型建议。
±1 100 kV UHVDC transmission project is the first time to construct, especially for the ±1 100 kV DC yard design, there is no experience to learn, the calculation and design of ±1 100 kV DC switchyard conductor are important parts of the converter station design, which is benifical to the safe, reliable and economical operation of the project. In this paper, the mathematica model of DC conductor is proposed considering the corona and total electric field strength, which is simulated by the matlab. The maximum surface electric field at the conductor and original corona are calculated. Also the electric field strength in different space is calculated, and then we can get the electric field strength at the floor, while the conductors are installed at different height. Finally, suggestions of ＋1 100 kV conductor design are presented, including both indoor and outdoor equipment layout.
出处
《南方能源建设》
2016年第4期37-41,共5页
Southern Energy Construction
关键词
±1100kV特高压换流站
导体设计
电晕
合成场强
±1 100 kV UHVDC converter station
conductor design
corona
total electric field strength
