Koichi Hamamatsu

Development of prototype wide-area monitoring, protection and control (WAMPAC) systems based upon international standards

Recently, the significance of Wide-Area Monitoring, Protection and Control (WAMPAC) has increased as it promises to provide a countermeasure to possible power system instability phenomena. The standardization of communication interfaces, that are able to open up the possibility of integrating a wide variety of sub systems, is becoming increasingly important in enabling the build of a standard WAMPAC system. In Japan, WAMPAC systems have been used for power system stabilization for many years and significant experience has been gained in the application of this technology. We have recently conducted a review of our in-service experience of WAMPAC systems and we have also examined current and draft international standards in order to identify the key standards pertinent to WAMPAC systems. In this paper, the authors introduce a proposal detailing a system configuration for a WAMPAC system based upon the international standards identified. The paper also discusses the prototype systems that were developed along with some sample demonstration scenarios.

A proposal for the standardization of WASA which complies with international standards

Recently the importance of Wide-Area Situational Awareness (WASA) is increasing as a basis for power system stabilization systems or as a part of a smart grid. While, in Japan, power system stabilization systems have been applied for many years and a significantly long experience has been established in the application of this technology. These stabilization systems have different system configurations and applications for their specific purpose, and they are classified and systematized in this paper. On the one hand, standardization of various communication interfaces and protocols have been discussed triggered by the introduction of the concept of the smart grid, and we discuss some of those international standards which are related to WASA. Although some standards have already been published, some are still under preparation and discussion prior to official publication. Consolidation of those standards for the stabilization system is important to the standardization of WASA, and we discuss the approach to standardization and introduce a typical WASA system.