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Several power system networks exhibit bifurcation, chaos and instability behavior for some specific values of initial conditions and parameters. Angle and voltage instability behavior of power system is prone to such specific values and parameter variation. This paper proposes fractional order proportional integral controller (FOPI) based state feedback for precise and robust control of such undesirable...
This paper presents a detailed look into the IEC 61850 protocol, its structure and substation communication model. The GOOSE messaging service which is an important part and also one of the major benefits of the IEC 61850 protocol has also been discussed. The various steps for implementation of IEC 61850 protocol and transmission of GOOSE messages in SEL relays have been studied. A laboratory experimental...
The structure of power system is changing around the world. With the increase in size and complexity of the distribution network, it is important to automate the system for proper monitoring and control. Service restoration is one of the techniques used by utilities to supply the power to healthy part of the network which gets isolated after occurrence of fault. The restoration plans have changed...
Network reconfiguration is the process of alteringthe topological structure of distribution feeders to achievemore reliable and economic operation of distribution network. Distribution Network Reconfiguration (DNR) is a multiobjective, combinatorial, non-differentiable constrainedoptimization problem. This strategy nowadays is veryfrequently used by distribution engineers to meet variousobjectives...
Complexity of power system is increasing due to expansion of interconnections. Blackouts and cascaded failures are associated with divergent situations in power system. Dynamics of power system pushes the behavior differently under different values of parameters such as increase in load demand at very sensitive bus in power system which may trigger exponential rise in power flows through lines leading...
Chaos is spread in several areas related to electrical engineering from load forecasting, power electronic system, power system, voltage collapse to catastrophic blackouts. Simulations with few simple circuit based experiments are reported in literature by several authors. Nevertheless it needs a broad study before one tries to analyze its impact and seriousness on existing complexity of system. Chaos...
Power system designing and protection Is one of the challenging issues since very old times. Faults are the major hurdles in that. Hence it is always better to take precautions which involve study of system under various fault conditions. This paper describes the generalized method for solving any combination of simultaneousbalanced and lanced faults and calculating symmetrical fault port currents...
In heavily loaded systems, voltage stability limit is usually dominant and voltage instability is usually observed following large disturbance. This is typically the case in the deregulated environment as the transmission systems are operating under more stressed condition due to increased transaction level associated with open access. In recent years, abnormal voltage instability has occurred in...
In heavily loaded systems, voltage stability limit is usually dominant and voltage instability is usually observed following large disturbance. This is typically the case in the deregulated environment as the transmission systems are operating under more stressed condition due to increased transaction level associated with open access. Sufficient attention to voltage stability in deregulated system...
This paper describes the architecture of an adaptive multimodal radar sensor that is capable of progressively varying its range resolution depending upon the target scattering features. It consists of a test-bed that will enable the generation of linear frequency modulated waveforms of various bandwidths. This paper discusses the design of the radar and the experimental results obtained from field...
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