Many areas in power systems require solving one or more nonlinear optimization problems. While analytical methods might suffer from slow convergence and the curse of dimensionality, heuristics-based swarm intelligence can be an efficient alternative. Particle (PSO), part family, is known to effectively solve large-scale This paper presents a detailed overview basic concepts PSO its variants. Also, it provides comprehensive survey on system applications that have benefited powerful nature as...

Minimizing implementation time and manual configuration, as well straightforward upgradability are the key requirements of efficient substation automation systems. For larger utilities this often necessitates achieving interoperability between different devices from multiple vendors. Since early 1990's it was noticed that speed advances in communication technology seemed to overpass its power system counterpart, which called for more adaptability by systems higher independence underlying...

Although long-duration power outages can lead to significant damages the local economy, human catastrophe that potentially unfold due failure of essential services far outweigh financial incurred. Furthermore, do not impact individuals equally, and access proper resources (or lack thereof) significantly affect how deal with outages. Various socioeconomic demographic characteristics have been shown in literature correlate increased health risks, levels outage preparedness, willingness means...

Demand Response (DR) refers to actions taken by the utility respond a shortage of supply for short duration time in future. DR is one enablers Smart Grid paradigm as it promotes interaction and responsiveness customers changes grid from vertically integrated structure that affected behavior demand side. In Principle, possible perform at substation level connected feeders downstream or response service provider (aggregator) under its territory. This would allow an area based solution driven...

A novel nonlinear optimal controller for a static compensator (STATCOM) connected to power system, using artificial neural networks, is presented in this paper. The action dependent heuristic dynamic programming, member of the adaptive critic designs family used design STATCOM neurocontroller. This neurocontroller provides control based on reinforcement learning and approximate programming. Using proportional-integrator approach, proposed capable dealing with actual rather than deviation...

In conventional power flow, the system branch resistances are assumed to be constant despite fact that they sensitive temperature, and therefore loading losses. When accurate calculation of losses is important, temperature correction resistance can improve accuracy flow calculation. This paper introduces a temperature-dependent algorithm: novel approach which integrates an estimate temperatures with equations. methodology relies on creation set coupled equations solved using Newton-Raphson...

Demand response (DR) is a market driven and sometimes semi-emergency action performed at the utility level or Response Service Provider (aggregator) with objective of reducing overall demand system during peak load hours. If implemented successfully, DR helps postpone capacity expansion projects related to distribution network, provides collaborative framework for liberalized energy Smart Grid. Customers subscribed program are requested reduce their turn off one more consuming appliances in...

This paper presents a review of the impact rooftop photovoltaic (PV) panels on distribution grid. includes how PVs affect voltage quality, power losses, and operation other voltage-regulating devices in system. A historical background classification most relevant publications are presented along with important lessons learned. It has been widely believed that high penetration levels grid can potentially cause problems for node voltages or overhead line flows. However, it is shown literature...

This letter investigates the effectiveness of a static neural network (NN) for monitoring power electronic circuits. The NN is trained to form mapping between inputs and outputs circuit, which in this study considered be full-bridge diode rectifier. Dynamic models have been used rectifier diodes. ultimate objective designed provide an indication when performance properties one or more components circuit changed from their original conditions-long before noticeable degradation even failure...

There has been growing concern in distribution system planning regarding the potential impacts of distributed generation (DG) on power quality, specifically with regards to voltage limits, imbalance, and flicker. The intermittent nature renewable energy resources, such as wind solar, makes a deterministic approach infeasible. It shown literature that probabilistic approaches must be adopted truly assess impact DG units system. This paper presents findings load-flow-based effects resources...

High penetration levels of distributed energy resources (DER) and active loads in the distribution grid can change traditional from a slower-changing radial network to multi-source with faster dynamics. Although overall system reliability quality supply principle be improved under this paradigm, new control protection challenges could arise that may not adequately addressed using approaches. The conventional management where only voltage magnitudes are measured utilized at center undermine...

An optimal wide area controller is designed in this paper for a 12-bus power system together with Static Compensator (STATCOM). The provides auxiliary reference signals the automatic voltage regulators (AVR) of generators as well line STATCOM such way that it improves damping rotor speed deviations synchronous machines. Adaptive critic designs theory used to implement and enable provide nonlinear control over infinite horizon time problem at different operating conditions system. Simulation...

Demand response (DR) provides means for utilities to reduce the power consumption and save energy. Plus, it maximizes utilizing current capacity of distribution system infrastructure, reducing or eliminating need building new lines expanding system. A typical DR program requires two parties cooperate: utility customers. In this paper a novel intelligent demand module is designed proposed be implemented at customer side. The primary target design large industrial sized customers that often...

Electric demand-side management (DSM) focuses on changing the electricity consumption patterns of end-use customers through improving energy efficiency and optimizing allocation power. Demand response (DR ) is a DSM solution that targets residential, commercial, industrial developed for demand reduction or shifting at specific time duration. In absence on-site generation possibility shifting, level needs to be lowered. While noncriticality loads residential commercial levels allows with...

Many modern industrial plants are equipped with local generation and designed to operate as a microgrid. Under normal conditions, the plant is connected often mainly supplied by utility's network. However, during disturbance on utility side, it may island from grid continue supplying its load using available on-site generation. When this not sufficient supply entire (which case), some of noncritical loads must be shed so ensure that remaining receive required quality service. The decision...

This paper presents a novel nonlinear optimal controller for static compensator (STATCOM) connected to power system, using artificial neural networks and fuzzy logic. The action dependent heuristic dynamic programming, member of the adaptive Critic designs family, is used design STATCOM neuro-fuzzy controller. provides control based on reinforcement learning approximate programming. Using proportional-integrator approach proposed capable dealing with actual rather than deviation signals....

Distribution Automation (DA) is viewed as an integral component of the Smart Grid paradigm. It facilitates employment computer technology and communication infrastructure to advance management operation distribution network from a semi-automated approach towards fully automated one. SCADA systems, advanced sensors, electronic controllers are integrated into DA system in order achieve desired performance reliability at network. Interoperability all components participating requires standards...

Fierce global competition and reduced profit margins are forcing many manufacturing plants to maximize their operational efficiency. This includes the consumption of energy across plant as well inventory buildup. To reduce cost purchased from electric utility, operator may use available on-site generation or reschedule operation one more workstations so that is less heavily during peak-load hours when price electricity high. All this must be done while considering interdependencies between...

Extreme weather events are one of the main causes large-scale power outages in distribution systems. The changing climate has led to an increase frequency and severity these events, which, if not mitigated, expected lead more instances widespread severe societal economic damages that ensue. Protecting grid against such which high impact yet low frequency, requires a paradigm shift design practices. In recent years, many researchers have focused on resilience extreme by proposing various...