1. RPC System at Shin-Miyama SP for Kyushu Shinkansen Service by JR Kyushu
For the purpose of effective use of train regenerative electric power, a railway static power conditioner (RPC) was delivered to the Shin-Miyama sectioning post (SP) for the Kyushu Shinkansen service provided by Kyushu Railway Company (hereinafter “JR Kyushu”) and its commercial operation started in November 2019.
Since alternating-current-electrified sections for Shinkansen are separated by an SP section, regenerative electric power cannot be transferred between adjacent SPs. However, this can become possible by installing an RPC. This system consists of an RPC and a power arithmetic unit installed in the adjacent substation. Based on the power information sent via communication with the power arithmetic unit, the RPC transfers excess regenerative electric power to power trains in the other electrified sections for effective use. The RPC can transfer up to 5.3 MW (rated power: 1.3 MW) using a power converter equipped with insulated-gate bipolar transistors (IGBTs).
 Use of regenerative electric power by RPC designed for installation at the Shin-Miyama SP