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This paper presents a model of multiple DC microgrids with battery energy storage systems and demand response capability, taking part in primary frequency regulation of electrical power system. Although DC microgrids can contribute to stability and efficiency of frequency regulation, these complex systems may cause serious stability issues due to the imperfect communication. This work presents possible...
This paper presents an intelligent battery management system (iBMS) used in Home Microgrid working in a grid-connected and island mode. The microgrid is composed by a PV generator, Battery system and a small residential group. This microgrid is located in a Caribbean zone which an average solar radiation greater than 1000 W/m2 but, with large intermittency due to the movement of cloud and also a high...
Feed-in-tariffs (FiTs) have been reduced due to combinations of economic and technical reasons. So, existing and new rooftop-photovoltaic (PV) owners are left with the option to either concede the low value arrangement or to use battery storage to maximise their self-consumption, and so minimise their electricity cost. This paper explores the effect of increasing penetration of residential battery...
The increased penetration of intermittent renewable energy sources (RESs) requires flexible resources such as demand response (DR) and energy storage to achieve balance between demand and supply in future grids (FGs). Hence, it is necessary to consider the impact of emerging demand-side technologies for modelling net demand in FG Scenarios. This paper studies the aggregated effect of PRICE-TAKING...
On the basis that a processing resource optimally calculates the loads scheduling one day-ahead for those prosumers operating in a demand response program, the question is: who acts the scheduling? This paper presents an electronic device named Smartbox as a low-cost and feasible home automation solution; so, given a processing resource which optimally calculates the loads scheduling one day-ahead,...
This paper proposes an online optimal power management problem for microgrid energy market considering electric vehicle (EV) charging/discharging, load curtailment and grid power transactions. Fuel and emission costs of conventional sources, hourly profits, incentives for load curtailment, revenue/cost of grid power trade and charging/discharging price of electric vehicles (EV) are considered by the...
Plug-in electric vehicles (PEV) present a promising solution to mitigate greenhouse gas emissions but on the other hand, their increased penetration can impact power system operation, particularly so in an isolated microgrid. Similarly, demand response (DR) has the potential to provide significant flexibility in the operation of an isolated microgrid, with limited generation capacity, by altering...
This paper describes a new way of thinking about demand-side resources to provide ancillary services to control the grid. It is shown that loads can be classified based on the frequency bandwidth of ancillary service that they can offer. If demand response from loads respects these frequency limitations, it is possible to obtain highly reliable ancillary service to the grid, while maintaining strict...
This paper presents a methodology to systematically formulate a hybrid renewable energy system (HRES), which consists of solar, wind and diesel generator as a backup resource as well as battery storage, from the preliminary design stage to the optimal operation. Detailed modeling of each system component, including photovoltaic(PV) panels, wind turbines and lead-acid batteries, are introduced as the...
The shift in the electricity industry from regulated monopolies to competitive markets as well as the widespread introduction of fluctuating renewable energy sources bring new challenges to power systems. Some of these challenges can be mitigated by using demand response (DR) and energy storage to provide power system services. The aim of this paper is to provide a unified framework that allows us...
PJM Advanced Technology Pilot Program sets up a platform to smart-grid technologies to demonstrate their technical viability and commercial values through running pilot project. This paper focuses on those pilot projects that target to provide high-quality regulation services to grid. Piloted technologies are diversified, from batteries, smart building, electric vehicles, to electric thermal storages...
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