Development of Packet-Power Transmitter for Realization of Open Access in PowerNetwork

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In the electric power system included multiple entities, entities or players take the complicated economic action by which they are able to get maximum benefit. Target of our research is the development of a packet-power transmitter for realization of open and homogeneous access for all entities in the power network. In our research, the packet power means a kind of capsule power with a level of the transmitted power transaction and the related information, such as 'from where to where by whom' and so on. In order to realized this concept in the real power system, we have to develop the monitoring devices of wide area dynamics in the power network through home power-outlet signal by GPS-internet based system. Interaction of generators inertia through power network induces multiple modes of voltage phase angle fluctuation in the power system. Measurements of the real time power fluctuations would be the important monitoring parameters of dynamic power system status especially under the … More competitive circumstance including various types of generation units and trading entities.We have measured the phase angle fluctuation among Hachinohe, Sendai (about 300 km from Hachinohe) and Tokyo (about 700 km from Hachinohe) by using the GPS-internet based PMU units, which was developed by the collaboration of Hachinohe Institute of Technology and Toshiba. Unique point of our work is in measure points of voltage signals. For enhancing the mobile ability and simplicity of measurement, the voltage phase angles are simultaneously measured through the home power-outlet at the remote area by GPS-internet based units. In this research, we are able to demonstrate the feasibility of the proposed monitoring system. The GPS-internet based device is featured as [sampling time : 0.02 s〜1s, data length < 36,000 continuously]. The setting of this monitoring system and the transfer of the observed data can be done through internet-media from the remote point.As a result we are able to survey the consumer behavior and the other entities of maximizing their profit under the competitive circumstances in the power network, in which the intrinsic oscillation occurs continuously. Concerning the packet-power concept, we are able to establish the concrete design by analyzing the obtained observation through the developed the monitoring system by this research grant. Less