Xinhua Silk Road: China State Grid makes new breakthrough in DC power distribution tech
PR90363
BEIJING, June 29, 2021 /PRNewswire=KYODO JBN/ --
State Grid Corporation of China (SGCC) has made new technological breakthroughs
in direct current (DC) power distribution with Pangdong DC central station put
into service on Tuesday by State Grid Jiangsu Electric Power Co., Ltd, a
subsidiary of SGCC.
Functioning for AC/DC conversion and power distribution, the Pangdong station
acts as one of the two "hearts" for State Grid Jiangsu's demonstrative low and
medium voltage (LV/MV DC) distribution project, which is expected to become a
world leading LV/MV DC distribution system with the largest scale, complete
voltage levels as well as latest technical equipments when completed this
August.
Listed as a national key R&D project in 2018 with construction kicked off last
May, the demonstation project is applied and undertaken by State Grid Jiangsu.
It has built two DC central stations ("hearts") in Pangdong and Jiuli within
Wujiang Economic Development Zone in Suzhou city of east China's Jiangsu
province to construct a LV/MV DC system covering various scenarios such as
municipal, industrial and commercial, and household uses. With accumulative DC
load of 10.5MW, the system is capable of different DC output at 10KV, 750V, and
375V for meeting different power demand.
The newly-commissioned Pangdong station, for example, could convert 10KV AC
into 10KV DC, and deliver, upon demand, different voltage level DC through a
transformer, according to Yang Chen, deputy director of the operation and
inspection department with State Grid Suzhou Power Supply Company under State
Grid Jiangsu.
The Pangdong station is also the control center of the entire distribution
system, said Yang, noting that power supply can be restored within 100
milliseconds in case of network failure thus increasing power supply
reliability rate to 99.999 percent with latest control system and coordination
system.
It is noted that the project so far has made breakthroughs in areas of system
planning and design, key equipment development, operation control technology
and system protection technology, with 93 patents accepted, 12 software works
registered, as well as 6 domestic and foreign standards compiled.
The demonstration project is expected to explore the construction, operation
and maintenance model for integrated DC power distribution and use, and provide
experience for global energy transformation and power consumption changes,
according to Yuan Dong, deputy director of the equipment department of State
Grid Jiangsu.
See the original link: https://en.imsilkroad.com/p/322415.html
SOURCE: Xinhua Silk Road
Image Attachments Links:
Link: http://asianetnews.net/view-attachment?attach-id=394921
Caption: Photo: Staff of State Grid Suzhou Power Supply Company starts power
transmission of No. 1 converter valve for Pangdong central station on June 29,
2021 in Suzhou, east China's Jiangsu province.
本プレスリリースは発表元が入力した原稿をそのまま掲載しております。また、プレスリリースへのお問い合わせは発表元に直接お願いいたします。
このプレスリリースには、報道機関向けの情報があります。
プレス会員登録を行うと、広報担当者の連絡先や、イベント・記者会見の情報など、報道機関だけに公開する情報が閲覧できるようになります。