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Pakistan is experiencing electrical power supply and demand challenge. Country??s demand is rising immensely, especially in domestic sector and it is imperative to decide the new power policies in order to control the situation. One of the primary requirements for power policy design is to construct a detailed electricity demand forecasting model. This study predicts electricity consumption for domestic...
The energy demand of electric vehicles (EVs) is expected to take a significant share in the electricity market in the future. As the charging power of EVs is much higher than any other individual household appliances, the power demand modeling of EVs needs to be analyzed. In this study, the charging profile of EVs is modeled by combining two probabilistic functions together: state of charge (SOC)...
Load in distribution networks is normally measured at the 11kV supply points; little or no information is known about the type of customers and their contributions to the load. This paper proposes statistical methods to decompose an unknown distribution feeder load to its customer load sector/sub-sector profiles. The approach used in this paper should assist electricity suppliers in economic load...
This paper discusses a novel model, based on Activity-Based Costing, developed to analyze and predict energy usage in the manufacturing industry. In this approach, we have modified a cost management tool called Activity-Based Costing (ABC) to include environmental aspects along with costs metrics. A case study was performed on a General Motors (GM) manufacturing facility to evaluate Demand and Response...
Power system simulation tools have been found insufficient to capture the Fault Induced Delayed Voltage Recovery (FIDVR) phenomena. It is widely believed that this problem is the result of inaccurate load modeling of air conditioner (A/C) loads in the local network. A method is proposed to study the influence of single-phase A/C motor loads on voltage recovery after a transmission line fault. The...
Introduction of the electric vehicle (EV) to the transport sector is greatly anticipated considering numerous environmental and socio-economical benefits. Consideration of their charging impact on electricity networks is of major importance to power system engineers under such circumstances. A number of system studies can be found in the literature describing different aspects of EV charging on power...
As the global movement towards the implementation of large-scale renewable energy sources proceeds, wind power has continued to remain a leading resource. Unlike other traditional generation sources, the fuel cost for wind is zero; nevertheless, the impacts of adding wind generation to an existing power system are generally non-negligible. One of the key indicators of the variability of a renewable...
This paper proposes an optimized approach for Real-Time Distribution System State Estimation (RT-DSSE) for solving three-phase radial, unbalanced and unsymmetrical type of networks by utilizing Active and Reactive Power, Current magnitude and Voltage magnitude measurements. As the preparation step, topological network analysis and network object model optimization is done to reduce the problem size...
This paper discusses a method for distribution system load modeling based on detection of normal voltage disturbances. The method is under investigation and testing in a distribution utility in Brazil. The basic idea is to monitor the voltage, active and reactive powers and, during detectable voltage variations, depending on the relationship among these variables, determine the voltage dependent load...
Demand response has grown to be a part of the repertoire of resources used by utilities to manage the balance between generation and load. In recent years, advances in communications and control technology have enabled utilities to consider continuously controlling demand response to meet generation, rather than the other way around. This paper discusses the economic applications of a general method...
Penetrations of variable renewable generation are increasing globally. While this trend is creating challenges for power systems, improved communication technologies are providing opportunities for the demand side to play a role in meeting some of these challenges. Commercial and industrial customers have long participated in demand response, but residential demand response is a largely untapped resource...
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