我国攻克新型电力系统精准计量关键技术

Core Insights - The State Administration for Market Regulation has organized domestic technological forces to address measurement and regulatory challenges posed by large-scale power electronic devices connected to new distribution networks [1][2] Group 1: Technological Advancements - Significant breakthroughs have been achieved in various fields, including the establishment of a solar radiation SI traceability system and the development of outdoor calibration devices for total radiation, enabling high-precision traceability of solar irradiance [1] - The team has overcome challenges in synchronous phasor precision measurement technology based on Programmable Josephson Voltage Standard (PJVS), and developed self-calibration methods for low-frequency high-voltage large current ratio and wideband large current sensing technology [1] - An online evaluation algorithm for the metering performance of electric vehicle charging piles has been constructed, facilitating intelligent regulation of a vast number of charging facilities and enhancing operational reliability and fairness [1] Group 2: Standardization and Future Directions - The team has led the compilation of the national standard "GB/T 33708.1-2025 for DC energy measurement devices," providing technical specifications for new DC energy measurement equipment [2] - These achievements signify systematic progress in the field of measurement and regulation for new power systems, addressing measurement challenges brought by renewable energy integration and laying a technical foundation for the efficient use of clean energy and standardized management of electric vehicle charging infrastructure [2] - The State Administration for Market Regulation will continue to promote the demonstration application of related technologies in actual power scenarios and gradually improve the traceability system and intelligent regulatory model suitable for new power systems [2]