Abstract
Along with the fast development of science technique and the national economy, electric power quality more and more shows its importance, put forward higher request to the credibility and automation degree of the electric power system movement. Using the computer to monitor and control the operation of electrical equipment and the power system has become a trend.
Power parameters monitor is a measure of the power voltage, current, power, harmonics, and other parameters of the apparatus, its power system plays a very important role. The graduation project's main task is to use the VC++ language, the design parameters of a power monitor PC interface. This interface shows the data of the A phase, B phase, C phase voltage, current, power factor, active power, reactive power, apparent power, harmonic voltage and harmonic current, to enable them to effectively and timely monitoring Working conditions at the scene, and shows the clock.
In the graduation design process, combining to the requirements of guide teacher's request (using VC++ programming language), first find information and recognize the VC++ programming software, learn C++ language. Finally, program on the application based on the MFC dialog, add the code, landscape interface, add serial communication control (MSComm), process the reception of data then output to interface.
Keyword: Electric power parameter; Human-machine Interface; VC++; Serial Communication