The Changing Face of Power: The Holonic, Multi-tier Bi-directional Microgrid Architecture of the Emerging "Grid-of-Grids"
Thursday, October 22, 2020
3:00 PM – 3:30 PM EDT
About equal to generation, power distribution has customarily accounted for approximately 40% of the capital investment in power systems worldwide. Traditional power distribution is comprised of uni-directional flows of power from voltage reducing sub-stations through point-to-point lines and typically shared transformers that ultimately feed electricity consumers. However, while the cost of central generation and transmission are relatively stable, the increasing presence of renewable, distributed energy resources is creating an increasing need for bidirectional flow of power in the system. This, in turn, is driving the cost of distribution up significantly.
At the same time, distributed energy sources are subject to intermittency and local operational complexity. Rapid variation in the amount of power flowing into and within the distribution system creates significant challenges for maintaining power within desired (often regulation mandated) ranges, particularly at the edge of the distribution system. Centralized control (i.e. coordinated volt/var and frequency control), can help, but is expensive, and can shorten distribution equipment life, not to mention its contribution to increased complexity, decreased reliability and its vulnerability to disruption/corruption.
However, distributed intelligence, embedded in bi-directionally mesh-connected microgrids, that are both electricity producers and consumers, and that can work together with and/or operate independently when disconnected from other nodes and the traditional grid, can provide high quality, cost-effective, electricity to both critical and non-critical loads, thus avoiding central grid distribution complexity and vulnerability to linear dynamic failure, poor resiliency and higher overall cost.
This presentation will give a detailed description of holonic multi-tier bi-directional microgrid architecture. Key topics covered will include:
• The anatomy of Holonic Nanogrids/Microgrids • The operation modes using the multi-agent-oriented systems approach • Improved resiliency, sustainability, and scalability benefits of semi-autonomous agent interoperability