Design and Impelimentation of DSP-based Multi-Channel Power Measurement System

This paper presented a DSP-based multi-channel power measurement system that can simultaneously measure and analyze power components for both supply and demand side of power system. Voltage 8-channel and current 10-channel measurements are made through voltage and current sensors connected to the developed system, and power components like as reactive power, power factor and harmonics are calculated and measured by the DSP. The measured data are stored in PC and a commercial program is then used for data analysis. After voltage and current measurement accuracy revision using YOKOGAWA 2558, the proposed system was tested using programmable ac power source. The test results showed that accuracy is about 0.3 percent. Also, simultaneous measurement test of the system was implemented by applying in the supply and demand side of power system. The proposed system can be applied to meet specific requirement such as several point power monitoring or analysis and capacitor bank control through reactive power monitoring