Research And Implementation Of The Voltage Sag Detection Platform For Sensitive Equipment

With the development of smart grid and the emergence of random,intermittent load and active load of power grid,the development of wind power and solar power generation,the structure and load of the modern power system presents a new trend,and the power quality of the electric power system becomes more and more complex.Among various phenomena caused by power quality problems,voltage sag is the most important reason for the damage or failure of sensitive equipment in power network.Sensitive equipment voltage sag tolerance test is the premise of effective technology and management measures for power supply enterprise and power users,and it has important theoretical value and practical significance.The traditional detection method has low detection efficiency and low accuracy,and it is difficult to meet the demand of intelligent power grid.When evaluating a sensitive equipment voltage sag tolerance is the sensitivity,the general staff in the laboratory manual operation,depending on whether the normal operation of equipment,in order to make the voltage sag tolerance curve,the whole process is complicated,accuracy and low timeconsuming.The research and implementation of automatic voltage sag tolerance test platform is very necessary.In this paper,the problem of detection of voltage sag tolerance of sensitive equipment in power network is described,and the research status at home and abroad is discussed.This paper mainly analyzes the concept of voltage sag and its related standards,and expounds the application of tolerance ITIC curve and PQDIF data format,and the need for sensitive equipment voltage sag tolerance test platform is interpreted.The design of the overall function of the platform and the analysis of the specific function in detail,discusses the structure of hardware and software platform design principles.At the same time,this paper discusses the application of database technology in the platform;the design and implementation of multifunctional voltage sag tolerance automatic detection platform,and taking the ITIC curve as an example,detailed analysis of the program design details and process of the platform.Finally,the screenshot shows the practical application of the detection platform.The lamp of the detection platform is the accuracy and practicability of the proof as an example.Now,the sensitive equipment voltage sag tolerance detection platform has been put into practice,which greatly improves the detection efficiency and accuracy of voltage sag tolerance.