Smart grid self-healing: Functions, applications, and developments

Abstract: Although the power system grid growth pace was slow, the load demand was not. Yet, there are some challenges that impeding the power grid to cope with the load pace, namely: renewable energy integration; energy efficiency; vulnerability to faults; and complexity of the power grid. Such challenges reveal the concept of smart grids (SG). In SG concept, secured, efficient, economic, and intelligent grid was sought in order to face the aforementioned challenges. One of the important tasks of an SG is self-healing.… Show more

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“…The rising electricity demand means the nonlinearity in power transmission and distribution network, and congestion, outage, fluctuation in voltage and frequency are the measure issues that becomes cause of blackouts [2] . Smart grid has self healing property equipments that have real time data to decrease system outage and losses, voltage level fluctuations etc [3] . Moreover, the global integration of renewable energy sources with main electricity generation system has great initiatives in this century, such as integration, stabilizing system voltage, and increment in energy storage devices, these issues also come under challenges [4] .…”

Section: Introduction mentioning confidence: 99%

Future smart grid communication-deployment of IoT: opportunities and challenges

India’s electrical power system grid also known as the power grid is serving us from a very long time. In this duration, there were no major developments or changes reported in the power grid system. Electrical power consumer demand is increasing drastically and the present grid system is not able to fulfil these emerging requirements. To fulfil the requirements of future power load, we need a modified system which has to be reliable, secure, intelligent and efficient. By converting the power grid into the smart grid will be a promising solution for adopting the above properties. Communication Infrastructure is a major part of the smart grid. The end-user can reduce their expenditure on electricity demand by using smart home appliance, to keep away from the rush hours and also make use of the renewable energy instead from utility, is a great example of deployment of internet of things (IoT) in grid communication. In this paper, we have provided a survey of different communication technology, applications, benefits and challenges in communication infrastructure, spatially IoT.

“…The rising electricity demand means the nonlinearity in power transmission and distribution network, and congestion, outage, fluctuation in voltage and frequency are the measure issues that becomes cause of blackouts [2] . Smart grid has self healing property equipments that have real time data to decrease system outage and losses, voltage level fluctuations etc [3] . Moreover, the global integration of renewable energy sources with main electricity generation system has great initiatives in this century, such as integration, stabilizing system voltage, and increment in energy storage devices, these issues also come under challenges [4] .…”

Section: Introduction mentioning confidence: 99%

Future smart grid communication-deployment of IoT: opportunities and challenges

India’s electrical power system grid also known as the power grid is serving us from a very long time. In this duration, there were no major developments or changes reported in the power grid system. Electrical power consumer demand is increasing drastically and the present grid system is not able to fulfil these emerging requirements. To fulfil the requirements of future power load, we need a modified system which has to be reliable, secure, intelligent and efficient. By converting the power grid into the smart grid will be a promising solution for adopting the above properties. Communication Infrastructure is a major part of the smart grid. The end-user can reduce their expenditure on electricity demand by using smart home appliance, to keep away from the rush hours and also make use of the renewable energy instead from utility, is a great example of deployment of internet of things (IoT) in grid communication. In this paper, we have provided a survey of different communication technology, applications, benefits and challenges in communication infrastructure, spatially IoT.

“…Part of the smart grid's power system [7] in Luxembourg [5], the low-voltage distribution grid, carries electric energy from distribution transformers to smart meters of end customers. This low-voltage network is, in general, more complex and meshed than the medium-voltage one, and it is harder to track its disturbances.…”

Section: Introduction mentioning confidence: 99%

Preventing Overloading Incidents on Smart Grids: A Multiobjective Combinatorial Optimization Approach

et al. 2020

Cable overloading is one of the most critical disturbances that may occur in smart grids, as it can cause damage to the distribution power lines. Therefore, the circuits are protected by fuses so that, the overload could trip the fuse, opening the circuit, and stopping the flow and heating. However, sustained overloads, even if they are below the safety limits, could also damage the wires. To prevent overload, smart grid operators can switch the fuses on or off to protect the circuits, or remotely curtail the over-producing/over-consuming users. Nevertheless, making the most appropriate decision is a daunting decision-making task, notably due to contractual and technical obligations. In this paper, we define and formulate the overloading prevention problem as a Multiobjective Mixed Integer Quadratically Constrained Program. We also suggest a solution method using a combinatorial optimization approach with a state-of-the-art exact solver. We evaluate this approach for this real-world problem together with Creos Luxembourg S.A., the leading grid operator in Luxembourg, and show that our method can suggest optimal countermeasures to operators facing potential overloading incidents.

“…A smart grid can provide benefits such as self-healing, which is one of the most important features for making a network "smart" (El-Ghareeb et al, 2017; Zhang et al, 2018) . This concept refers to the ability of the distribution network to recover from a disturbance, isolating a problem, restoring loads in the shortest possible time, and reducing the number of customers affected (Elgenedy et al, 2015) . When compared to traditional distribution systems, self-healing systems improve the reliability and quality of the distribution system (Zheng and Cong, 2017) .…”