1. Terminal monitoring unit: composed ofPower quality monitoringdeviceComplete; Communication service system: mainly composed of a monitoring instrument communication system, a communication server, and a communication module. The monitoring communication system is responsible for receiving communication server instructions, parsing instructions, searching and packaging the required data, and uploading them to the communication server through the communication module; The communication server is responsible for all, andAC Power Quality MonitorConduct data communication and support communication methods such as Ethernet interface and USB interface.

2. Monitoring and analysis platform: mainly composed of online monitoring, power quality analysis, and parameter setting management. Online monitoring is mainly responsible for updating real-time records of monitoring power quality data, and refreshing real-time data every 3 seconds according to national standards; Power quality analysis, mainly responsible for numerical table, curve analysis, and report printing processing of statistical analysis data; Parameter setting management is mainly responsible for setting and managing various parameters of the system and the power quality monitoring instrument.

3. Database service system: mainly composed of a database, internal processing programs, and database management modules. The database is used to store monitoring data uploaded by various power quality monitoring instruments in the power quality monitoring and analysis system; The database also provides data retrieval and other data service support for monitoring and analysis platforms in the system. The database supports large databases such as MSSQL and ORACLE.

4. Test and analyze the dynamic parameters of reactive power compensation and filtering devices in the power system, and quantitatively evaluate their functions and technical indicators; The characteristics of portability, multi-parameter, large capacity, high accuracy, and the application of modern signal analysis theory make it widely used in fields such as power transmission and distribution, power electronics, and motor drive. Measure and analyze the AC power quality supplied by the public power grid to the user, including frequency deviation, voltage deviation, voltage fluctuation and flicker, allowable three-phase voltage imbalance, and grid harmonics.

5. Load fluctuation monitoring: Regularly record and store the trend of changes in power parameters such as voltage, current, active power, reactive power, frequency, phase, etc; Dynamic monitoring of power equipment adjustment and operation process, helping users solve problems that arise during the adjustment and operation of power equipment; Test and analyze the causes of faults such as circuit breaker action, transformer overheating, motor burning, and automatic device malfunction in the power system.

Before conducting power quality monitoring, the first step is to address why monitoring is necessary, what goals are expected to be achieved, and what key points should be noted during implementation. Because these contents will indeed determine what analysis methods should be adopted, what system architecture should be adopted, and what software and hardware platforms should be used during the implementation process. Therefore, when conducting any power quality analysis and control, it is necessary to first establish clear goals.