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In the integrated power supply systems SMART-Grid, energy effici-ency, reliability, and survivabilityare ensured, to some extent, by continuous monitoring of the stability of parameters with reference to real-time signals. In accordance with the ІЕЕЕ С37-238-2017 standard, in order to provide power supply system with the time stamps, it is necessary, with respect to the concept of intelligent power sys-tem SMART Grid, to develop and implement the means for reproducing accurate time stamps with a microsecond accuracy. A protocol, which is capable to meet these re-quirements and does not require the development of a dedicated power system is the PTP protocol. The developed state standard of Ukraine DSTU IEC / IEEE 61850-9-3: 2018 defines a number of characteristics of the PTP protocol for both energy and other profiles. A full standardization of PTP protocol in Ukraine requires a development and adoption of the following document-based standards as the state’s ones: IEEE Std 1588 ™ — 2008 or IEC-61588: 2009, IEEE C37.238-2017. The appropriate schemes have been developed for testing a domestic complex of the US-1588M and US-1588S devices with the use of PtpMon2 software. During the tests, it is envisaged to perform short-term and long-term measurements of time cha­ -racteristics of the synchronization signals generated at the output of US-1588S de-vice. The measurement results are presented as the Time Interval Error (TIE) and Maximum Time Interval Error (MTIE), which is calculated as a maximum value of the TIE array at a given measurement interval by using v1 of the PTPmon2 software. Also, we investigated the complex US-1588, which provides the transmission of accurate time stamps’ signals using the PTP protocol. According to the results of experimental studies, the obtained accuracy of time stamps transmission does not exceed 1  μs, which meets the requirements of the IEEE S37-238-2017 standard to the energy profile of PTP.

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Currently, customers of energy companies use devices to generate electricity (solar panels, windmills, etc.) and return energy to the grid to save costs or generate income. Therefore, it is urgent to solve the problem of creating an automated system for diagnosing the quality of electricity for consumers who use renewable sources of electricity. The purpose of this study was to improve the efficiency of management in intelligent SMART Grid power systems. To fulfil the said purpose, it was proposed to use an automated system for monitoring synchro signals of PMU microprocessor equipment and software tools for digital processing and statistical analysis of the results of synchronised vector measurements of dynamic characteristics of power grids. Software tools for digital processing and statistical analysis of the obtained vector measurement data were developed. Linear regression, Random Forest Regression, and Ridge regression methods were employed to analyse and predict electricity quality indicators. The results of a comparative analysis of the obtained results of the predictive model were presented. To conduct experimental studies, a laboratory sample of a quality control device for generating synchro signals was developed and manufactured, which directly affects the reliability of digital data from distributed synchronised vector measurements in transient modes (in real time). The multichannel nature of the device increases the performance and reliability of the automated monitoring system. The paper presents the results of experimental studies of the device as a part of the developed laboratory stand, which is connected to the current local IP network of the National University of Life and Environmental Sciences of Ukraine. The practical significance of the conducted experimental studies lies in the establishment of the technical possibility of simultaneous monitoring of time synchronisation signals generated by two GPS receivers. In this case, it is obvious to increase the performance of the developed and manufactured device for monitoring the quality of clock signal generation, compared to a single-channel one. This material can be useful for engineers who design electrical systems connected to renewable energy sources.