Higashi-Shimizu Frequency Converter, Power converter station in Shimizu-ku, Japan
The Higashi-Shimizu Frequency Converter is a power conversion facility in Shimizu-ku with two back-to-back converter blocks, each handling 300 megawatts of capacity. The installation connects different voltage levels through a 125 kilovolt direct current system to distribute electricity across separate grid sections.
The facility began operating in 2006 as the third converter station developed in Japan to connect the eastern 50-hertz and western 60-hertz power grids. This installation resulted from the need to bridge Japan's historically divided electrical infrastructure more effectively.
The facility demonstrates Japan's engineering excellence in developing solutions for the country's distinct electrical frequency zones, reflecting regional technological adaptations.
The facility operates as an industrial site with restricted public access due to its role as critical power infrastructure. Visitors should obtain prior permission and follow the operator's security guidelines.
The facility employs voltage source converter technology that enables precise control of electricity flow between regional networks while occupying minimal physical space. This compact design approach became influential for solving spatial constraints at comparable installations elsewhere.
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