Summary

The Japanese power grid is uniquely divided into two frequency regions:50 Hz in the east and 60 Hz in the west. These regions are linked by frequency converters (FC) with a total capacity of 2100 MW. Following the 2011 Great East Japan Earthquake, there has been a critical need to enhance transmission capacity between these regions to enable power exchange during emergencies and, to be utilized in electricity market operations. Higashi-Shimizu FC is undergoing an expansion with the 2 units of Voltage Source Converter (VSC), with a combined capacity of 600 MW, scheduled to start operation in 2028. This paper presents a comprehensive overview of the system configuration and design aspects for the Higashi-Shimizu FC.

Additional informations

Publication type Session Materials
Reference B4_10940_2026
Publication year
Publisher CIGRE
Country Japan
Study committees
File size 1 MB
Price for non member 30 €
Price for member 30 €

Authors

IMAI Shingo - Chubu Electric Power Grid Co., Inc. Japan; HAJIRI Ryuutarou - Chubu Electric Power Grid Co., Inc. Japan; MATSUNAGA Tomohiro - Chubu Electric Power Grid Co., Inc. Japan; INOUE Shigenori - Hitachi Energy Japan, Ltd. Japan; KAMIYAMA Koichi - Hitachi Energy Japan, Ltd. Japan; ASAO Takashi - Hitachi Energy Japan, Ltd. Japan

Keywords

Black Start, Grid Forming, LCC, VSC

The construction and system study of the Higashi-Shimizu frequency converter station (VSC BTB link)