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In this work we investigate the effect of WiFi offloading in improving the interaction of a Mobile Network with the Smart Grid. In order to make demand match supply, so as to prevent grid instabilities and to effectively use the produced power, the smart grid can issue some requests to its users to increase or decrease their consumption; the users that can positively respond to the smart grid requests...
We propose a novel home energy management framework to intelligently schedule the distributed energy storage (DES) for the cost reduction of customers in this paper. The proposed optimal production control technique determines the action policy (e.g., charging or discharging) and the power allocation policy of the DES to provide DES power at proper time with lower price than that of the utility grid,...
We consider the optimal stochastic control problem for home energy systems with solar and energy storage devices when the demand is realized from the grid. The demand is subject to Brownian motions with both drift and variance parameters modulated by a continuous-time Markov chain that represents the regime of electricity price. We model the systems as pure stochastic differential equation models,...
In this paper we show how to build an economically optimal feedback control strategy for the re-dispatch of electricity generation. We assume that the operator steers production in a set of controllable power plants by altering the active power set-point of each generator, within a set of predefined set-points. The operators strategy will be based on balancing the operating cost against the expected...
We analyze an optimal power flow problem in the case of a scenario where the generators, even assuming continuous operation, do have non-monotone marginal production cost profile. We decompose the operating range of generators into intervals corresponding to operation modes. We show that if in each such interval the production characteristics is approximated by a linear function, a two level optimization...
In this paper, we propose a mixed-integer linear program to economically optimize equipment usage in a central heating/cooling plant subject to time-of-use and demand charges for utilities. The optimization makes both discrete on/off and continuous load decisions for equipment while determining utilization of thermal energy storage systems. This formulation allows simultaneous optimization of heating...
The construction of new transmission facilities, or enhancing transmission network, increases the reliability and security of the power system. Enhancing transmission network increases the amount of power that can be transmitted through the system, which, in most cases, allows the increase of electricity trading volume. However, in practice there may be cases, primary due to methods used for congestion...
The increasing diffusion of embedded generators on distribution systems leads to the idea of managing portions of the network operating in islanded mode for overcoming emergency conditions. To this aim, it becomes essential to have reliable control strategies for the different types of generator and loads. In this paper some issues regarding the dynamic control of frequency and voltage in MV islanded...
In this paper we propose a novel control architecture to manage a large fleet of thermal loads and adjust traditional power plant generation setpoints for reference tracking and production costs minimization. The time scales considered are determined by sampling times of a few seconds and control horizons of a few minutes. The control architecture consists in a model predictive controller (MPC) combined...
The cost and power impact of suboptimal storage configurations is significant in datacenters (DCs) as inefficiencies are aggregated over several thousand servers and represent considerable losses in capital and operating costs. Designing performance, power and cost-optimized systems requires a deep understanding of target workloads, and mechanisms to effectively model different storage design choices...
Traditionally, transmission outages and transmission switching are not part of market economics optimization. Most of transmission outage and switching analysis is solely based on system reliability criteria without much consideration of market efficiency or any systematic economic evaluation. As the global movement of smart grid progresses with stronger, more flexible and more efficient transmission...
Laws and regulations in Croatia stimulate eligible producers by means of an incentive tariff system for electric energy generation from renewable energy sources and cogenerations (RES) only if the energy is delivered to the network. That causes many problems in case of an “eligible producer who is also a consumer”. The purpose of the article is to initiate an improvement of existing approach to eligible...
Increasing energy prices and the greenhouse effect lead to more awareness of energy efficiency of electricity supply. During the last years, a lot of domestic technologies have been developed to improve this efficiency. These technologies on their own already improve the efficiency, but more can be gained by a combined management. Multiple optimization objectives can be used to improve the efficiency,...
We propose a solution for analyzing programs with multiple language contexts as they occur, for example, in C# 3.0. C# 3.0 has two contexts: the normal C# context and the language integrated query (Linq) context, which are basically the same, but Linq has some additional keywords that are treated as identifiers in the C# context. We demonstrate our solution by using the compiler generator Coco/R,...
Results of studies of inductive storage for production of high output power pulses for generating intense electron and ion beams and for powering energetic plasma implosions are discussed. Experimental studies at stored energy of up to 3 MJ have provided opening switch techniques required to generate output pulses in the 10 TW range. Analyses of high power puiser circuits, which use homopolar generators...
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