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Development of Key Technologies for Inspection Robots in Substations
In 2014, the Ministry of Science and Technology released the list of accepted projects for the national science and technology awards. Among the notable projects was the key technology research and development and industrialization initiative focused on high-end intelligent measurement and control instruments for process industries. This project was recognized by the National Science and Technology Progress Award in the Electronics and Scientific Instruments Group.
The project introduced several innovative technologies, including a novel omega-shaped oil-conducting microcapillary suspension pressure/differential pressure sensor, an open-arch special ceramic core, and a convex structure corrugated membrane seat. It also developed a comb filter band-pass filter based on a notch filter, along with a precise microvolt-level sensing signal measurement method and multi-frequency excitation control technology. These advancements significantly improved the accuracy and reliability of measurement systems in industrial settings.
Another important project, focusing on the theory and methods of power system optimization decision-making and stochastic analysis, was accepted under the National Science Award for Engineering Science and Technology. This initiative established a multi-period coordinated control model for reactive power optimization in power grids. It introduced a new random power flow theory and an efficient algorithm for large-scale power systems that accounted for line faults, intermittent power output fluctuations, and other uncertainties. For the first time, it proposed a reliability evaluation method for large-scale power systems using Markov chain Monte Carlo techniques, marking a significant breakthrough in power system analysis.
Additionally, the key technologies for inspection robots used in substations were recognized by the National Technology Invention Award in the Machinery and Power Unit category. The project developed a robot movement mechanism tailored for substation operations, as well as preset data interaction technology for PTZ (pan-tilt-zoom) cameras and visual servo PTZ control. It also introduced positioning and navigation technologies based on radio frequency identification (RFID) and magnetic guidance, along with integrated multi-sensor information fusion navigation systems. These innovations enhanced the efficiency and safety of substation inspections.
Finally, the research on high-efficiency centrifugal pump theory and key technologies, along with engineering applications, was accepted under the National Science and Technology Progress Award in the Machinery Group. The project advanced grid generation, turbulence modeling, cavitation modeling, and testing techniques for centrifugal pump inlet calculations. It developed a multi-state hydraulic design approach for centrifugal pumps and introduced a new type of high-speed magnetic pump guide bearing and thrust plate made from F50 grinding material. These developments have had a major impact on improving the performance and efficiency of centrifugal pumps in various industrial applications.