Completion of Chubu Electric Power Grid Hida Converter Station Equipped with Hitachi's Frequency Converters
Contributing to a stable supply of electricity by enabling efficient interconnection between Tokyo and Chubu regions with HVDC Technology
TOKYO, Apr 1, 2021 - (JCN Newswire) - Hitachi, Ltd. (TSE: 6501) announced that the operations of the Hida-Shinano frequency conversion facility have commenced, enabling the Shin-Shinano Substation of TEPCO Power Grid, Inc. (TEPCO) to be connected to the Hida Converter Station of Chubu Electric Power Grid Co., Inc. (Chubu Electric Power), to which Hitachi delivered a line commutate converter high-voltage direct current (HVDC) system.
The Hida-Shinano frequency conversion facility is a direct current transmission system with an interconnection capacity of 900MW, connecting the 60 Hz-based Chubu Electric Power area and the 50 Hz-based TEPCO area via an approximately 89 km long aerial cable. In the wake of the Great East Japan Earthquake that occurred on March 11, 2011, the new facility was purpose-built to increase the interconnection capacity between the different areas and enhance the power supply capacity in the event of a large disaster. In this project, Hitachi received an order for a frequency converter to be installed at Chubu Electric Power's Hida Converter Station that included installation and testing. The equipment uses the line commutate converter High-Voltage Direct Current (HVDC) power transmission technology to achieve the interconnection of systems with different frequencies through the conversion of alternating current into direct current. The installation of the converters, which began in August 2018, has been completed.