![]() Fault current from either network will not flow through the converter, therefore acting as a fault current limiter and ensuring no assets are overstressed. This enables the local control of voltage, using reactive power on both networks while providing a means to bi-directionally transfer real power between the networks unlocking additional network capacity. The FPL is installed in parallel to an existing normally open point. in the UK aimed to provide a connection between two bulk supply points (BSP) using a back-to-back AC-DC-AC converter. The flexible power link (FPL) method of network equilibrium project managed by Western Power Distribution plc. ![]() Generation is becoming increasingly decentralized through connections at distribution level rather than on the transmission system. Digital twins to predict and compare cooling system capacity, anomaly detection to identify degradation and faults, and high-frequency transient recording analysis to evaluate the impact of voltage and current disturbances are applied to allow for a condition-based, predictive, and cost-efficient asset management. The system is installed on a module-integrated circuit board and will be operated in pilot vehicles to assess and mitigate issues of moisture ingress and condensation.Ī second example deploys data-driven analytics for Hitachi Energy’s HVDC systems. A sensor-based example deals with a wireless condition monitoring platform for rail-traction semiconductor modules. is developing novel solutions across various PE hierarchy levels. These incorporations raise challenges for system reliability making the use of prognostics and health management a desirable target. PE applications have proliferated into the complete chain of existing grids from renewables, power transmission, to energy-efficient power consumption. Major developments in power semiconductors, together with the increased need for availability and capacity, have led to significant revolutions in power electronics (PE). Hitachi will keep contributing to the achievement of a decarbonized society by responding to needs for power system interconnection equipment as power system interconnections are strengthened both domestically and internationally, and renewable energy usage increases. Hitachi is positioning HVDC as one of its main areas of focus in the energy business, and in 2019 received an order for the frequency conversion equipment using self-commutating HVDC technology in the Chubu Power Grid Higashi Shimizu Substation currently under construction. System designed to withstand difficult weather conditions, including an outside air temperature between −30°and +35☌, an elevation of 1,085 m, and heavy snowfall in an area with 200 cm of snow coverage.First domestic use of foreign-manufactured air-insulated system filter in power AC/DC conversion equipment (currently manufactured by Hitachi Energy).Direct current power transmission equipment connected to alternating current (AC) and direct current (DC) conversion equipment with DC aerial power transmission lines totaling 89 km in length.Power interchange capacity of 900 MW, and a direct current line voltage of 200 kV. ![]() The facility offers the following features: It contributes to the stabilization of the power supply between the Tokyo and Chubu regions using high-voltage direct current (HVDC) technology, and serves a vital role in enabling electricity transactions between east and west Japan during normal times. This facility was constructed with the goal of providing a stable power supply, thereby preventing in advance the type of confusion that can occur when there is not enough power as happened during the Great East Japan Earthquake of March 2011. Thanks to a collaboration system that enabled close coordination with the customer, the project was completed without issues essentially 24 months of work after the start of installation in August 2018 (excluding a construction pause). The Hida-Shinano frequency conversion facility at Hida converter station run by Chubu Electric Power Grid Co., Inc., which is the first interconnection project between the Tokyo and Chubu systems, began operations in March 2021.
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