Design and Implementation of Three Phase Multi-function Electric Parameters Measuring Meter Based on IDT_90E36

摘要

With the rapid development of smart grid, the accurate measurement of all kinds of linear and nonlinear loads' electrical parameters is a major problem facing us in the power grid system. The main chips of the electric measuring meter are STM32 serial microprocessor core and IDT 90E36 electric energy metering chip. The meter's measuring flow, hardware circuit design and the IDT 90E36 chip setting have been introduced in detail. Also, the use of BY2086 three-phase precise harmonic source as standard source as the evaluation index could realize the accurate measurement of power system load three-phase electrical parameters, and could load the harmonics generated by the nonlinear energy analysis special inspection. Finally, a prototype has been made and its electric parameters measurement accuracy is about 5/1000. The test results prove the feasibility of the meter design and the electric parameters measuring meter also improves the measurement accuracy and stability of electric parameters, and greatly simplifies the design of hardware circuit structure, reduces the cost of enterprise, and it has a market value of promotion and application.