SYSTEM FOR MEASUREMENT OF ELECTRICAL QUANTITIES IN POWER SYSTEMS ON THE BASIS OF THE MICROCONTROLLER BOARDS ARDUINO
The trend of increasing share of nonlinear loads in modern power supply systems leads to increased power distortion sinusoidal currents and voltages of the network, and requires studies of power supply systems, to assess their impact on the sources and consumers of electricity. To improve the efficiency of scientific research of PhD students is required to equip research labo-ratories with appropriate recording of instantaneous values of currents and voltages with the ability to accumulate and archive the source files containing the temporal sampling of the curves of current and voltage in the load balancing nodes. Research is extremely important. The question remains about the quality of the supplied and consumed energy. The latest version of the Russian GOST 32144-2013 in terms of power quality that sets these indicators at the level of typical substations, but research often requires observation of the quality of electricity in the networks of the lower level. Discuss technical and methodological approaches to the develop-ment of instruments for measuring quality parameters of electric energy during operation of the receivers in the power supply system. Attention is drawn to the methodical way of designing devices for monitoring electric power quality: the operation of the basic units of devices, volt-age sensor, analog-to-digital converter, devices send signals from the Board «Arduino» to the receivers, visualizing the measurement data. Developed and proposed the software that per-forms the conversion, transmission, receipt and visualization of data on the status of the electri-cal circuits in the load center. The proposed approach allows to use the shared technology of the smartphones or iPhones for recording and accumulation files for further processing with application of procedures of diagnosis. In the course of the development of the following tasks: the analysis of the use of microcontrollers to create mobile registration systems instantaneous values of currents and voltages in power supply systems on the example microcontroller «Arduino» created a working model of the mobile device registering the instantaneous values of current and voltage in 0.4 kV networks, the testing of the layout of the device, with the pur-pose of using it to build computer experiments on diagnosis of electrical systems in the disser-tation research of graduate students and masters.