Load Shedding: A New Proposal

Load-shedding Strategies for Preventing Cascading Failures in Power Grid

“…Besides these newly proposed strategies, load shedding has been a classical and a quite reliable mitigation strategy. There have been several discussions on optimal load shedding in literature recently and in the past [10], [12], [17], [18], [19], [20], [21], [22]. [17] proposes a load shedding method in steps with an equal frequency spacing between steps with an aim to avoid over shedding.…”

“…Different methods for adaptive load shedding are adopted in [23], [24], [25], [26], [27], [28]. The authors of [18] talk about interruptible and uninterruptible parts of every load and suggest shedding the interruptible part of every load in the system as a mitigation strategy.…”

Distributed Interruptible Load Shedding and Micro-Generator Dispatching to Benefit System Operations

“…The paper [5] analyzes the hourly load profile of a group of residential users and break it up to separate the power absorbed by the different appliances. This information is used by the DNO to send appropriate power reduction signals to end-users to achieve a desired load shedding (this procedure is called Distributed Interruptible Load Shedding -DILS).…”

“…The cost function will be minimized with respect to p and q. This construction follows closely the procedure illustrated in [5], with the addition of the dispatchable power.…”

“…In particular, to go beyond the DG as an aid to the relief of transportation lines and include emergency operations, it is necessary that the distribution network operator (DNO) be allowed to condition the electricity production of the distributed sources, so as to integrate dispatchable DG within its LS and DSM programmes, using suitable tariff incentives for the service offered to the final users [3,4]. In this article we investigate this point as a follow-up to a previous study on Distributed Interruptible Load Shedding (DILS) [5] (where load relief is obtained by curtailing diffuse interruptible loads in a decision-under-uncertainty framework), now the load variation can be achieved also through the dispatchment of power from distributed micro-generators. In particular, we examine the convenience of CHP and µCHP systems in Section II and we assess the influence of the power they generate on load profile in Section III.…”