supported in part by the National Natural Science Foundation of China(51907067);in part by the Industrial Research Chair Program of the Natural Sciences and Engineering Research Councilof Canada。
Distinction of weak and strong AC grids for emerging hierarchical-infeed LCC-UHVDC systems is important for planning and operation departments. However, accuracy of earlier distinction methods is limited as they were ...
This work was supported by the National Natural Science Foundation of China(51678548);the Science and Technology Project of the State Grid Corporation of China(GC71-16-003).
The overheating problems of terminal connectors severely threaten the operation of ultra-high voltage projects and cause enormous losses of economy,so a higher currentcarrying reliability of the connectors has an impo...
This work was supported in part by National Key Research and Development Program under Grant 2016YFB0900900;in part by State Grid Corporation of China under Project GY71-18-008.
Prediction of electric field impact on residential houses is required in the design of UHVDC transmission lines.The calculation of electric field distribution on houses is a 3D problem,however,the effectiveness of som...
This work was supported by the National Natural Science Foundation of China under Grant 51637004.
Compared with the typical Ultra HVDC(UHVDC)system,the inverters of the UHVDC system with a hierarchical connection mode(UHVDC-HCM),connect two receiving-end systems with different operational conditions.This requires ...
Strong DC coupling with weak AC and large-scale renewable energy integration are the two significant characteristics of ultra-high-voltage AC/DC(UHVAC/DC)hybrid power grids in China.Strong coupling between AC and DC g...
supported by National Natural Science Foundation of China(No.51325702);Science-Technology Project of State Grid Corporation of China(No.GHJS1500009);State Grid Excellent Innovation Foundation of Tsinghua University(No.2011079).
In a UHV DC and AC combined system the UHVDC’s blocking fault becomes the most serious load balance contingency of the receiving end power system due to its large capacity.The amount of contingency reserve thus is la...