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Distributed Cyber-Physical Systems Analysis

Decent Essays

Technological and manufacturing progress along with climate change concerns are transforming the electric power system with the integration of an increasing number of renewable sources that are difficult to plan and control due to its volatility and lack of active dispatchable control. This is challenging the reliability, efficiency and security of the grid. However, they offer a potentially synergistic development as these Distributed Energy Resources (DERS) can provide the requisite for demand response and reserves for economically sustainable massive renewable energy integration. In spite of that, today’s centralized power markets do not allow for the procurement of reserve services and the accommodation of demand response. In this …show more content…

The model proposed uses direct current in the transmission system to capture transmission line flow capacity congestion and losses and alternating current for the distribution feeders. The reserve object of study are the ones used in PJM and NYISO market operators.
The objective is to define a scheduling centralized transmission network-connected and decentralized distribution network-connected resources to provide optimal real and reactive energy taking into account individual constrains. The problem is formulated as a centralized market clearing problem that minimizes social costs, schedules the available capacity of resources and derives marginal-cost-based T&DLMPs for a day-a-head, hour-a-head or real-time market.
The distributed dual decomposition optimization problem describes a framework that over comes exiting power market computational tractability and information communications limitations. The use of a PMP algorithm consisting of an iterative interaction of DER, line and bus-specific problems leads to the same solution as the centralized problem. The algorithm is built on a extensive Lagrangian relaxation work and can handle convex relaxation ac load flow modeling.
In addition, the proposed architecture is favorable to

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