Electric power systems are prominent representatives of the critical infrastructure. Existing electric power systems are composed by two cooperating infrastructures: the electric infrastructure, which is responsible for electricity generation and electricity transmission to customers; and information technology based control systems that monitor and control the physical parameters of the electr...

In this paper, a comprehensive mathematical model for designing an electric power supply chain network via considering preventive maintenance under risk of network failures is proposed. The risk of capacity disruption of the distribution network is handled via using a two-stage stochastic programming as a framework for modeling the optimization problem. An applied method of planning for the net...

Dongdong Zhang 1, Zhijin Zhang 1,*, Xingliang Jiang 1, Zhongyi Yang 1, Jiayao Zhao 1 and Yongfu Li 2 1 State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Shapingba District, Chongqing 400044, China; [email protected] (D.Z.); [email protected] (X.J.); [email protected] (Z.Y.); [email protected] (J.Z.) 2 State Grid Chongqing Electr...

In this paper, the impact of charging a large number of electric vehicles (EV) on the power system voltage stability is investigated on an example of a real power transmission system. First, the maximum load factors for different states in a selected part of the power system are determined using the continuation power flow (CPF) calculations and PV curves. The approach provides information abou...

Hajime Urai, Dr. Eng. Takahide Matsuo Hiroaki Hashimoto Tatsuro Kato, Dr. Eng. OVERVIEW: The market for electric power transmission systems is expected to grow strongly, driven by growing demand for electric power in emerging economies and the adoption of renewable energy. Transformers, circuit breakers, and switchgear are important components of these electric power transmission systems. The e...

Efficacy of using a wireless relay node (WRN) to minimize total power dissipation in transmission of a layered video between two devices is presented. It is analytically shown that there is a feasible relay region that would have lower power consumption than direct transmission depending on both the encoding rate of each layer and received signal power level for provisioning required bit error ...

In this paper, the basic concepts of dynamic thermal ratings of overhead transmission conductors are discussed. The sensitivity of these ratings with ambient conditions is evaluated. Innovative concepts in the measurement of overhead sag are given and correlated with dynamic rating of overhead transmission conductors. Dynamic transmission line thermal ratings take on increased importance in the...

In a framework where deregulating the electric power market is an objective to be achieved, this thesis investigates how the transmission rules chosen by the regulator to deregulate this market will shape the incentives given to the market players and influence their market power. To study this influence, it is challenging the perfect market assumptions and examining how physical and financial ...