ABSTRACT
Contents 9.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 9.2 Synchrophasor Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
9.2.1 IEEE Standard 1344 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 9.2.2 IEEE Standard C37.118-2005. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 9.2.3 Experimental System for IEEE C37.118 . . . . . . . . . . . . . . . . . . . . . 200 9.2.4 New Synchrophasor Standards PC37.118.1
and PC37.118.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
9.3 PTP Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 9.3.1 IEEE 1588 v1 2002 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 9.3.2 PTP Grandmaster for Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
9.3.2.1 The XLi’s Time Interval/Event Time (TIET) . . . . . . . 203 9.3.2.2 Test to Determine the Stability of the Network
Topology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 9.3.3 Experimental System for Test with PTP v1 . . . . . . . . . . . . . . . . . 205 9.3.4 PTP Slaves for Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 9.3.5 IEEE 1588 v2 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 9.3.6 Experimental System for Test with PTP v2 . . . . . . . . . . . . . . . . . 208
9.4 IEC 61850 Standard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 9.4.1 Harmonization of IEEE C37.118 with IEC 61850
and Precision Time Synchronization . . . . . . . . . . . . . . . . . . . . . . . . 209 9.4.2 PC37.239 for Common Format for Event Data Exchange. . . 210 9.4.3 PC37.238 for Application of PTP to Electric Power . . . . . . . . 210 9.4.4 Experimental System for Test with PTP and IEC 61850 . . . . 210
9.5 PTP-Based V2 Global System for Synchronized Event in Smart Grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
9.6 Conclusions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
At present, phasor measurement units (PMUs) are the most widely used synchronized measurement technology (SMT)-based device for power system applications. The major advantages of using an SMT are that all measurement signals are attached with a high-accuracy time stamp; this will facilitate the transition from the conventional SCADA-based measurement system to a more intelligent measurement system that utilizes synchronized measurements from geographically distant locations. This will help in spreading the smart grid conception. We propose a new synchronized technique. A precision time protocol (PTP)-based global system has been defined to provide a synchronized substation for phasor measurements. It implements the precision time protocol to perform time stamping for these innorative electronic designs (IEDs). For this objective, we have developed experimental procedures to the standards involved.
