how to find resiliency of a static system for example whena

how to find resiliency of a static system for example whena grid is connected to a load and the laod has a back up system, now how can one calculate the resiliency of the backup system?

Solution

SYSTEM RESILIENCY OF A STATIC SYTEM IS DEFINED BY ITS ROBUSTNESS . HOW HARD IS IT TO KNOCK DOWN? AND ITS RECOVERY: HOW QUICK CAN IT GET BACK UP?

RESILIENCE of the grid infrastructure is its ability to avoid or minimise the magnitude and/or duration of service disruptions due to extraordinary events. Its effectiveness depends upon its ability to anticipate, absorb, adapt to and/or rapidly recover from a potentially disruptive or hazardous events.

GENERATION CAPACITY ALSO AFFECTING THE RESILIENCE.

Extraordinary events may include external factors, such as the weather, accidents, overloads or terrorism, and internal factors, such as equipment failure, maintenance faults, system control and management limitations and readiness. In the worst cases, if faults are not addressed quickly enough they could lead to cascading failures across the network and ultimate closure of large sections of the grid.

COSIDER AN EXAMPLE : WE HAVE A SOLAR PANEL +STORAGE SYSTEM , THERE IS ONE CENTRAL GRID AND MICRO GRID AND SPECIAL BATTERIES. SPECIAL BATTERIES CAN BE INTEGRATED USING MICROGRID. SO The microgrid will supply resilient power to nearby LOAD. The LOAD has been desig- nated as an emergency shelter, supplying critical power when the central grid is down. LOAD has a history of frequent power outages due to severe storms. While the microgrid provides much needed power for the community when disaster strikes, the project will recover costs largely though daily storage-enabled services to the grid, regulating and smoothing supply and demand.

The INL microgrid test bed integrates such batteries into a system that also incorporates solar energy, load control capacities and grid interaction algorithms.

RESILIENCY OF BACK UP SYSTEM IS CALCULATED BY USING SMART GRID APPLICATIONS LIKE

1.BIDERECTIONL POWER FLOW AND

2.MANAGE INTERMITTENT NETWORK POWER FLOWS( LIKE RENEWABLE SOURCES SUCH AS WIND IS INTERMITTENT AND CAN DROP OFF WITHOUT SUFFICIENT NOTICE).

EXAMPLE IS REGENERATIVE BRAKING IN ELECTRIC TRAINS, BRAKING ENERGY IS RETURNED TO GRID.