南方电网技术
南方電網技術
남방전망기술
SOUTHERN POWER SYSTEM TECHNOLOGY
2014年
4期
27-32
,共6页
直流融冰装置%开路试验%EMTDC%开路直流电压%电压谐波%阀电压
直流融冰裝置%開路試驗%EMTDC%開路直流電壓%電壓諧波%閥電壓
직류융빙장치%개로시험%EMTDC%개로직류전압%전압해파%벌전압
DC de-icer%open line test%EMTDC%OLT DC voltage%voltage harmonic%valve voltage
为更好地指导开展南方电网直流融冰装置开路试验，研究了开路试验直流电压形成机理、交直流侧电压谐波特性、阀导通瞬间冲击电流、阀电压特性及阀关断状态电压上升率、开路电压控制功能和开路试验保护功能等，并推导出开路试验阀关断状态电压上升率计算公式。此外，介绍了桂林直流融冰装置、独山直流融冰装置和黎平直流融冰装置的开路试验功能和现场开路试验情况。
為更好地指導開展南方電網直流融冰裝置開路試驗，研究瞭開路試驗直流電壓形成機理、交直流側電壓諧波特性、閥導通瞬間遲擊電流、閥電壓特性及閥關斷狀態電壓上升率、開路電壓控製功能和開路試驗保護功能等，併推導齣開路試驗閥關斷狀態電壓上升率計算公式。此外，介紹瞭桂林直流融冰裝置、獨山直流融冰裝置和黎平直流融冰裝置的開路試驗功能和現場開路試驗情況。
위경호지지도개전남방전망직류융빙장치개로시험，연구료개로시험직류전압형성궤리、교직류측전압해파특성、벌도통순간충격전류、벌전압특성급벌관단상태전압상승솔、개로전압공제공능화개로시험보호공능등，병추도출개로시험벌관단상태전압상승솔계산공식。차외，개소료계림직류융빙장치、독산직류융빙장치화려평직류융빙장치적개로시험공능화현장개로시험정황。
In order to guide the open line test (OLT) of DC de-icer device in China Southern Power Grid (CSG), a deep research has been done on OLT in this paper, including OLT DC voltage formation, harmonic characteristics both in AC and DC sides, impulse current when valve turning on, valve voltage characteristics and its rising rate when valve turning off, OLT voltage control function and OLT protection, and a formula is deduced to calculate the valve voltage rising rate when valve turning off. Moreover, the OLT control function and the practical OLT in Guilin, Dushan and Liping are introduced.
