The Design Of The Power Quality Online Monitoring System And The Realization Of Data Module

Along with the economical development and the technical day-by-day progress, the electric power already seeped the aspects which we live, has become an entire social indispensable part. Joins along with more and more users to the electrical network, electrical network's load also comes from various equipment, slightly to domestic electric appliances, big to industrial used engine bed, electrical power system's security, also more and more has become the matter which each profession needs to pay attention. And, is responsible to respond that the electrical network movement condition the electrical energy quality specification, the basis which manages as the electrical network, also has received more values.The electrical energy quality definition is: Through the public power grid supply client's quality of AC,its content involves the frequency departure, the voltage deviation, the electromagnetism transition condition, the power supply reliability, the wave distortion, three-phase not balanced, the voltage hunting, the flickering and so on.Only then makes the very accurate judgment to electrical network's whole movement's situation, can guarantee that the electric power management the validity, can further guarantee the electric power like the safety in production, the safe transportation and the safety handling. The electrical network electrical energy quality online observation system is precisely develops under such background.The paper first introduced the electrical energy quality online observation system's development background, as well as present domestic and foreign to electrical energy quality research present situation.The part then described the electrical energy quality observation system's demand analysis, as well as its each functional module division. The demand analysis mainly includes the target data type which the observation system needs to gather, what target needs to carry on the memory and the analysis to, as well as according to any standard analysis.Behind followed closely was elaborating the online observation system'sconstruction and the detailed design, including it to electrical network roleorganization way, but also had the system interior concrete structure division, as wellas system's operation flow. The detailed design part emphatically elaborated thedatabase logical design and the client side contact surface design. The paper alsodescribed multi-thread technology in data dump module application.Finally this article described data module realization in detail, including data dumpmodule and data analysis module.