Identification of coherent groups of generators based on synchronization coefficient

Davarikia, Hamzeh; Znidi, Faycal; Aghamohammadi, Mohammad Reza; Iqbal, Kamran

doi:10.1109/pesgm.2016.7741434

Cited by 19 publications

(14 citation statements)

References 13 publications

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“…To evaluate the effectiveness of a model, specific test scenarios are needed, and different models require different methods [33][34][35][36][37][38][39][40][41][42][43]. To test the effectiveness of the designed model, the program was coded in Code Vision at the mechatronics lab of Rayan Shid Nama Eng.…”

Section: Experiments and Resultsmentioning

confidence: 99%

Prevention of Metro Rail Accidents and Incidents in Stations Using RFID Technology

Sahba

2018

2018 World Automation Congress (WAC)

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Today, metro is one of the urban infrastructure and plays an important role in urban transport. The safety and health of people in a city are always important, and transport in the metro should also be safe. When subway trains operate, it is possible to occur various accidents such as an exit from the rails or collision with a possible obstacle on the rails (human or another train). In this paper, a model is proposed based on RFID technology in which the train is equipped with a RFID reader, and a control circuit with a microcontroller as well as placing RFID active tags at specific points of the path. When the train approaches the tagged points of the route, the train tag reader scans the tag number, and then the microcontroller identifies the status of the environment by retrieving the information from the internal database. Then, the control circuit adjusts the rotational speed of the electric motor and the train speed consequently based on that data. In this way, the speed of the train is adapted automatically and promptly to the conditions and the probability of an accident in unforeseen circumstances is reduced.

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Section: Experiments and Resultsmentioning

confidence: 99%

Prevention of Metro Rail Accidents and Incidents in Stations Using RFID Technology

Sahba

2018

2018 World Automation Congress (WAC)

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“…Normally, the correlation coefficient (CC) varies between -1.0 and +1.0 and measures the intensity and direction of the linear relationship that exists among the two quantities. About the power network, the variables represent the coherency of two different buses where a value of +1.0 indicates there is an ideal positive association among the two buses [28][29][30]. In order, to evaluate the degree of coherency between two different buses, the PPCC among bus i and j is formed as follows:…”

Section: Coherency Decttion Base On Pearson Product-mentioning

confidence: 99%

Coherency Detection and Network Partitioning based on Hierarchical DBSCAN

Znidi

Davarikia

Arani

et al. 2020

2020 IEEE Texas Power and Energy Conference (TPEC)

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After a sudden disturbance, the energy balance of generators is disturbed, and the power outputs of synchronous generators vary as their rotor angles shift from their equilibrium points. This trend essentially presents the versatile response of each machine to the disturbance. Because of this change, the phase angle of the bus also differs. Hence, the versatile response of each machine can be assessed by the phase angles change at the buses close to the synchronous generator. This paper introduces a new methodology for discovering the degree of coherency among buses using the correlation index of the voltage angle between each pair of buses and use the Hierarchical Density-Based Spatial Clustering of Applications with Noise (HDBSCAN) to partition the network into islands. The proposed approach also provides the network integrity indices (connectivity, splitting, and separation) for studying the dynamic nature of the power network system. The approach is assessed on an IEEE-39 test system with a fully dynamic model. The simulation results presented in this paper demonstrate the efficiency of the proposed approach.

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“…The modified RTBS system is employed to demonstrate the algorithm performance. The target is to have perfect reliability 1.00 based on (2). Table IV shows one iteration of the proposed model.…”

Section: Traditional Reliability Improvement Modelmentioning

confidence: 99%

Budget Allocation for Power Networks Reliability Improvement: Game-Theoretic Approach

Davarikia

Barati

Chan

et al. 2019

2019 IEEE Texas Power and Energy Conference (TPEC)

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Budget allocation for power system reliability improvement is considered among the sophisticated problems because of its nonlinear nature. This nonlinearity makes the problem intractable for large-scale power systems. This paper compares two approaches for budget allocation for power system reliability improvement. The first method is the traditional one, which suffers from the non-convexity and nonlinearity. In the second approach, a linear zero-sum mixed-strategy game is proposed where a limited budget is allocated among the network elements based on the game variables along with an iterative algorithm to find the solution. Both models are applied to the modified RTBS system. The results show that while each strategy adopts a different tactic for reliability improvement, both strategies improve the system reliability to the same level for a given budget.

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Identification of coherent groups of generators based on synchronization coefficient

Cited by 19 publications

References 13 publications

Prevention of Metro Rail Accidents and Incidents in Stations Using RFID Technology

Prevention of Metro Rail Accidents and Incidents in Stations Using RFID Technology

Coherency Detection and Network Partitioning based on Hierarchical DBSCAN

Budget Allocation for Power Networks Reliability Improvement: Game-Theoretic Approach

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