Recently, IEC/IEEE63198-2775 Technical Guidelines for Smart Hydroelectric Power Plant compiled under the leading of NARI Group was officially released. The release of this Standard filled in the gap in the field of smart hydropower plant technology around the world and broke through the "Three First Times": the first time for China to lead the development of IEC/IEEE international standard, the first time developing international standard for intelligent power generation in the world, and the first time for China to lead the compilation of international standard for hydropower automation. This greatly enhanced the international influence and technical competitiveness of NARI in hydropower technology.

IEC/IEEE63198-2775 Technical Guidelines for Smart Hydroelectric Power Plant is an IEC IS standard that mainly stipulates the definition, general principles, system architecture, equipment configuration and functions of smart hydroelectric power plants (including smart sensors, basic support systems, on-site automation equipment, integrated management and control platforms, intelligent applications), network security, commissioning, operation and maintenance services and the construction process of smart hydroelectric power plants. It also specifies the requirements for applying the "Big data, cloud computing, IoT, mobile Internet, AI, block chain" new technologies, and provides forward-looking guidance for intelligent planning of hydropower stations, which plays an important role in regulating and leading the intelligent construction in the international hydropower industry.

The Technical Guidelines for Smart Hydroelectric Power Plant passed the approval of IEEE and IEC in 2017 and 2018 successively, and the IEEE P2775 Working Group and IEC TC4 WG14 Smart Hydropower Sub-Working Group were established, with NARI technical expert acting as the leader of the IEEE Working Group and co-leader of IEC Smart Hydropower Sub-Working Group. IEEE P2775 Working Group mainly includes eight IEEE corporate members and a number of domestic and foreign experts. IEC TC4 WG14 Smart Hydropower Sub-Working Group mainly consists of 18 experts from China, Austria, France, Germany, Norway, Sweden, Canada, the United States and Japan. HPS (Hydropower Sub-Committee) and IEC TC57 WG18 under IEEE PES ED&PG participated in the compilation of the standard through a collaborative mechanism.

It took six years for the compilation of this Standard from the proposal, project declaration, organization and preparation to publication of it, during which more than 60 international and domestic working group meetings were held, and more than 900 comments from domestic and foreign experts were collected and considered. Under the strong support of the National Technical Committee for Hydraulic Turbine Standardization and the joint efforts of the working group experts, the project approval ballot, CDV ballot and FDIS ballot were all passed unanimously at one time, and the published bilingual version in English and French runs to more than 150 pages. The solid professional skills and profound international knowledge of the working groups were highly affirmed by IEC, and the head of the working groups won the 1906 Award (2022) of International Electrotechnical Commission (IEC).

NARI has being carried out key technology research on smart hydroelectric power plants since 2009. After years of technical research, the Company has put forward an overall plan and system architecture for smart hydroelectric power plants, made breakthroughs in key technologies including distributed optical fiber temperature measurement, hydroelectricity information modeling, equipment fault diagnosis, electric power meteorological applications, etc., and developed core products including intelligent monitoring and control devices, integrated management and control platform, intelligent alerting, watershed economic operation, main equipment condition maintenance and intelligent patrol inspection in conjunction with relevant units within the Group. A complete set of autonomous and controllable intelligent equipment, with computer monitoring, speed governor, excitation and relay protection equipment as its core, have been formed. The research outcomes have been successively applied to watersheds like Lancang River, Yalong River and the upper reach of Yellow River, domestic hydropower stations such as Wudongde, Fengman, Xiaolangdi and Daitengxia, overseas hydropower stations such as Bagun in Malaysia and Kariba in Zambia, which have achieved plentiful achievements in engineering applications and created significant economic and social benefits. These have fully verified the practical significance of the technological achievement system of smart hydroelectric power plants and realized the implementation of scientific research achievements in smart hydroelectric power plants. The related technologies can be further extended to PV power, wind power, pumped storage power generation, intelligent water conservancy and other professional fields, with promising application.

Next, NARI will further drive the research on smart hydroelectric power plant technology and achievement system, further expand the international standard system of smart hydroelectric power plants and pumped storage, step up efforts in the formulation (revision) of international standard in hydropower field, strive to build the brand in smart hydroelectric power plant technology standard, with the purposes of promoting the continuous innovation and upgrading of complete sets of intelligent hydropower plant equipment, continuously improving the international right of speech and industrial competitiveness of the Company in the field of hydropower technology, thus making positive contributions to the energy transition and power supply.