| 1. | The study of numerical method in extra high voltage dc system 超高压直流系统数值计算新方法 |
| 2. | Characteristic of extra high voltage transmission 超高压输电的特点 |
| 3. | Technology development and application of high and extra high voltage cable 超高压交联电缆的发展及应用 |
| 4. | Implementation of power transmission gis for shanghai extra high voltage company 上海超高压工区输电地理信息系统的实现 |
| 5. | Impact and prevention measures to electromagnetic field of extra high voltage transmission lines 超高压输电线路电磁场影响及防治措施 |
| 6. | Measurement result and analysis of electromagnetic environment of 500 kv extra high voltage power lines 超高压输电线下方电磁环境测量与分析 |
| 7. | Studies on protection of extra high voltage transmission line based on discrete long line equation and power balance 基于离散化长线方程的超高压输电线路功率平衡法保护研究 |
| 8. | The following is the main points . haishrwan - jmchang - jiayuguan 330kv extra high voltage transmission lines is the weak line in gansu 本文研究的主要内容如下:海石湾金昌嘉峪关330kv超高压输电线路是甘肃电网中的薄弱环节。 |
| 9. | If still using ceramic and glass insulators , the size of tower will be enlarged because of extra high voltage grade , which will result in the increase of investment . so when the transmission lines are being designed , the composite insulat ors may be a better choice 由于电压等级很高,如果仍然采用传统的瓷、玻璃绝缘子,杆塔的尺寸必将非常巨大,造成投资增加,因此在线路设计时可能会考虑使用合成绝缘子。 |
| 10. | Based on the research project of my tutor the application of a new unified power flow controller in extra high voltage transmission lines operated in two phases , the existing principle of upfc and methods of the transmission lines operated in two phases , put the new upfc into hai - jin - jia 330kv extra high voltage transmission lines based on perfecting the framework of main net located in west of river in gansu which can improve the quality of electric power and ensure power transmission or transfer between the main net of gansu and the area of west of river 本文综合分析了海-金-嘉330kv超高压输电线路在正常运行和故障情况下的诸多问题,在upfc的现有成果和非全相运行现有方案的基础上,结合导师的研究课题? ?新型统一潮流控制器在超高压输电线路非全相运行中的应用。提出在完善甘肃河西主网架结构的基础上,将新型的upfc应用于海-金-嘉330kv超高压输电线路,可以较好的解决电压质量问题,确保甘肃主网与河西地区电网的功率传输、转换。 |