A new soft load shedding: Power system stability with contribution from consumers

Abstract

Abstract--The safe operation of electrical power systems is an ongoing problem. Despite the existing defense lines in the different electrical systems, they are not immune to widespread incidents leading to tripping of most consumers. In the defense plans against these major incidents, selective load shedding (LS) even optimized (but brutal), is the last resort before total blackout. This paper proposes a new concept of residential consumers "soft" load shedding (SLS). Its originality lies within the fact that it takes only a fraction of the consumers' power, even if the effort is spread over a larger number. It therefore seeks to avoid the plunge into darkness.

Distributed load interruption and shedding against voltage delayed recovery or instability

“…can be disconnected from the network for a short period of time without affecting their operation, nor impacting customers, due to the thermal inertia of the involved processes [10].…”

Effect of Load Shedding Strategy on Interconnected Power Systems Stability When a Blackout Occurs

“…Total Generation = Total load + Total loss (1) Under this balance condition the system will operates at the synchronous frequency of 50 or 60 Hz. In the event of that this balanced state is disturbed, the system frequency changes as in Table I.…”

“…However in recent years by improving monitoring and protection techniques, it is not possible to completely prevent of blackouts [1][2]. Sudden and large changes in generation capacity such as the outage of a generator can produce a sever imbalance between generation and load demand.…”

Adaptive static load shedding schemes for Nigerian grid system based on computational intelligence techniques

“…[6] designed a load shedding and generation reallocation in power system using fuzzy particle swarm optimization algorithm. A new concept for residential consumers soft load shedding scheme was developed in [7]. An expert-system-based load shedding scheme (LSS) for ship power systems was proposed in [8].…”