DECENTRALIZED CONTROLS AND COMMUNICATIONS FOR AUTONOMOUS DISTRIBUTION NETWORKS IN SMART GRID

摘要

Technologies are generally described for addressing the bidirectional power flow conflict incurred by power surpluses produced from a number of households' on-location energy generation units (e.g., solar) in power distribution networks. A micro grid composed of households in a neighborhood may be considered as a generating- or consuming-resource entity at different time periods. The approach may be formulated as a power balance computation such that power balance may not be achieved within the micro grid itself, and therefore power sharing (or redispatching) among micro grids is operated, before requesting power from the macro grid, i.e., the fuel-based conventional grid. Enhancement of renewable energy utilization and reduction in the amount of data packet traffic in exchange of information and control messages via uplink and downlink transmissions throughout an overlay multi-tier communications network infrastructure may be taken into consideration in example implementations.

主权项

1. A method to facilitate decentralized controls and communications for autonomous distribution networks in a smart grid, the method comprising:
structuring at least a portion of the smart grid in a four tiered architecture, wherein
a first tier comprises a central control center (CCC) managing a plurality of Distribution Control Centers (DCCs) each DCC representing an Autonomous Distribution Network (ADN),a second tier comprises a plurality of first Control Centers (CCs) each CC representing a subsystem,a third tier comprises a plurality of second CCs each second CC representing neighborhood or a field area network, anda fourth tier comprises a plurality of micro grids (MGs) each MG comprising one or more households and each MG being managed by a second CC in the third tier; enabling exchange of power availability and/or need information among the households, the MGs, and the CCs through uplink and downlink communications; abstracting aggregated data collected from one or more of multiple MGs, multiple substations, and/or multiple ADNs at each tier as the uplink and downlink communications are extended to higher tiers for transmission to a controller in a higher tier; and enabling direct distribution of excess power among the MGs and subsystems.