to evaluate and predict component-based software security, a two-dimensional model of software security is proposed by stochastic petri net in this paper. in this approach, the software security is modeled by graphical presentation ability of petri nets, and the quantitative prediction is provided by the evaluation capability of stochastic petri net and the computing power of markov chain. each...

Secure and reliable operation of complex interactive power networks poses significant theoretical and practical challenges in analysis, modeling, simulation, prediction, control, and optimization. In addition, mathematical models of such interactive systems are typically vague (or may not even exist); moreover, existing and classical methods of solution are either unavailable, or are not suffic...

this paper discusses the problem of allocation of constrained renewable resource to splittable activities of a single project. if the activities of stochastic projects can be split, these projects may be completed in shorter time when the available resource is constrained. it is assumed that the resource amount required to accom-plish each activity is a discrete quantity and deterministic. the ...

This article proposes a new two-stage hybrid stochastic-information gap-decision theory (IGDT) based on the network-constrained unit commitment framework. The model is applied for market clearing of joint energy and flexible ramping reserve in integrated heat- power-based systems. uncertainties load demands wind power generation are studied using Monte Carlo simulation method IGDT, respectively...

Maintaining the stability of renewable-dominant power systems requires procurement virtual inertia services from non-synchronous resources (e.g., batteries, wind turbines) in addition to traditionally provided by synchronous thermal generators). However, pricing provision has not been studied a stochastic electricity market, where uncertainty characteristics renewable energy sources (RES) are c...

In this paper, a new security-constrained self-scheduling framework incorporating the transmission flow limits in both steady state conditions and post-contingent states is presented to produce efficient bidding strategy for generation companies (GENCOs) in day-ahead electricity markets. Moreover, the proposed framework takes into account the uncertainty of the predicted market prices and model...

This paper analyzes the computational performance of the deterministic optimization approach for the Security Constrained Unit Commitment problem (SCUC) addressing thermal generating units, that was developed in its companion paper. The technique proposed in the first part is based on suitable integer cutting planes, specific for the SCUC problem, and a Branch and Bound search which incorporate...

Power systems are shifted from conventional bulk generation toward renewable generation. This trend leads to the frequency security problem due decline of system inertia. On other hand, natural gas-fired units frequently scheduled provide operational flexibility their fast adjustment ability. The interdependence between power and gas is thus intensified. In this context, paper considers constra...

In the recent decade, renewable energy sources (RES) such as wind and photovoltaic (PV) power generations gained more attention. However, despite their proven role in reduction of operating costs network, integration has some serious challenges inherent uncertainties balance at grid. Some options to face these challenges, well enhance network’s flexibility, are demand response (DR), distributed...