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This paper utilizes a recently developed novel biologically-inspired krill herd algorithm to solve combined heat and power economic emission dispatch optimization problem. Herding behavior of krill individuals is considered to formulate this algorithm. The objective function is defined by the distances of each individual krill from food and from highest density of the herd. The instantaneous position...
Security attacks through Internet have proliferated in recent years. An Intrusion Detection System in the general framework of a network catches the perpetrators before they do real damage to the resources. The performance of Intrusion Detection Systems usually depends on the false alarm rate and the detection rate, since true positive and false positive trade-off is always a major challenge in the...
Cognitive radio systems based on non-contiguous orthogonal frequency division multiplexing (NC-OFDM) is a promising technique that can provide efficient bandwidth utilization for high data rate wireless communication systems under frequency selective fading environments. Nevertheless, the sidelobe power of the secondary users (SU) in NC-OFDM modulated signals create out-of-band power (OBP) which induce...
Demand Response is a major component of Smart Grid. For Demand Response(DR) schemes to succeed, consumers should schedule their load. This problem is an active area of research now. Various optimization models have been proposed by researchers. There are works related to specific appliance models which are more energy consuming and models which pertains to general schedulable loads. The various DR...
In this paper Proportional-Integral-Derivative (PID) gains are evaluated by Teaching Learning Based Optimization (TLBO) algorithm. Three area thermal system of Automatic Generation Control (AGC) are considered with PlugIn Electric Vehicles (PEVs) to solve load frequency control problem. Incorporation of PEVs the frequency and tie-line power response are improved in terms of undershoot (US), overshoot...
Orthogonal frequency division multiplexing is an efficient transmission strategy to combat frequency selective fading and is part of many of the emerging wireless standards. Orthogonality of subcarriers is an important attribute in the performance of OFDM system. Carrier frequency offset effects orthogonality of subcarriers and the resulting interference causes severe performance degradation in OFDM...
A new fuzzy c-means clustering with non-extensive entropy regularization is proposed in this paper. The purpose of entropy regularization is to form approximate solutions of singular problems in the maximum entropy framework. The non-extensive entropy with Gaussian gain is generally used for identifying non-uniform probability densities as in regular texture patterns. It is thus well suited for regularizing...
The critical issues in a renewable energy based microgrid are ensuring continuous availability of power to the critical loads, and to provide supply to the maximum possible portion of the system under any abnormal conditions by topology management. An intelligent load shedding and fast reconfiguration of the system is therefore necessary in order to serve the critical loads and to maintain a proper...
Hybrid pipelining can help us achieve faster clock rates by combining the advantages of both flop and wave pipelining and has signal processing applications. In this paper we formulate this problem for acyclic combinational circuits as a mixed integer non linear programming (MINLP) problem and give three algorithms to obtain good solutions. The first method is a sensitivity based approach. The second...
This paper deals with design and performance analysis of automatic generation control (AGC) of a two area six unit interconnected power system. A single input Fuzzy Proportional Integral Derivative (FPID) controller is used to study the transient response of the proposed system. Area-1 consists of two thermal generating units with reheat turbines along with a diesel unit and area-2 has two thermal...
In this paper, optimal multiuser downlink cooperative beamforming in spectrum underlay based cognitive radio network is considered with target SINR and sum power constraints. In existing works, transmit beamforming vectors for maximum number of admitted secondary users are designed with fixed target SINR and sum power constraints. However, this joint optimization problem becomes infeasible as some...
The objective of this paper is to design a state feedback controller to damp out the inter-area oscillations in the power system network with limited wide area measurements. The conventional state feedback controller designed through LQR optimization requires all the state variables as input. However, the dynamics of a power system is governed by a large number of state variables. Therefore, it is,...
This paper presents, the impact of the pumped-storage (PS) unit on the static transmission network expansion planning problem (STNEP). The aim of this work is to minimize the total cost which is a summation of the transmission line cost, the fuel cost and the load curtailment cost. The load curtailment cost is included in the objective function to avoid the additional artificial generation. The proposed...
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