Binh Dinh Power Company: Acceptance and commissioning of the FLISR function on the 22kV power grid in Quy Nhon City

On November 23, 2024, Binh Dinh Power Company successfully conducted the field acceptance test of the FLISR function on the 22kV power grid in the central area of Quy Nhon City.

The FLISR (Fault Location, Isolation and Service Restoration) function is an automation system feature designed to automatically detect faults, isolate the affected section from the rest of the system, and restore service to unaffected areas, thereby minimizing the outage area. The components of FLISR include: fault information acquisition, fault location, fault isolation, and service restoration functions.

Testing the FLISR function with a simulated fault scenario on feeder 476QNH2.

To carry out the acceptance of the FLISR/DAS function on the actual 22kV power grid of Quy Nhon City, Binh Dinh Power Company had proactively coordinated with My Phuong Trading Co., Ltd. to provide operational training on the Survalent SCADA system for the teams involved in power system operation.
At the same time, they developed detailed plans and test scenarios, coordinated with the contractor to inspect and handle communication channels, addressed potential abnormal conditions before and during the testing process, and reviewed the relay settings of Reclosers and LBS devices to support the tests.
They also ensured the SCADA communication links connecting to three 110kV substations via the EVNCPC dedicated telecommunication system, as well as the remote-controlled devices on the 22kV grid, currently using services from the FPT network provider. According to the FLISR field acceptance plan, the acceptance committee will evaluate the Survalent SCADA/DMS software to ensure it meets the operational requirements for the existing devices on the power grid.
This includes four simulated fault scenarios across 12 feeders (22kV) from three 110kV substations: Quy Nhon 2, Quy Nhon Port, and Dong Da, involving 45 devices, including feeder circuit breakers, Reclosers, and LBS-C units along the distribution lines. The field test results show that this function operates stably, efficiently, and reliably, achieving a 100% accuracy rate in generating the correct restoration scenarios for all four simulated fault cases on the 22kV power grid in the area.

Binh Dinh Power Company is the first unit within EVNCPC to successfully implement and operate the FLISR function of the Survalent software in real-world conditions, based on the SCADA system data parameters of ATS. This serves as a foundation for the technical staff of Binh Dinh Power Company to continue researching and mastering distribution grid automation technology in Binh Dinh Province in the coming time, contributing to the digital transformation, promoting the application of science and technology in operations, reducing outage duration for customers, and enhancing the reliability of power supply as well as customer satisfaction.

Source: Ho Quang Thinh https://cpc.vn/vi-vn/Tin-tuc-su-kien/Tin-tuc-chi-tiet/articleId/88735