Measurement uncertainty impact on simplified load flow analysis in MV smart grids

2018 ◽  
Author(s):  
Antonio Cataliotti ◽  
Valentina Cosentino ◽  
Salvatore Guaiana ◽  
Salvatore Nuccio ◽  
Dario Di Cara ◽  
...  
Keyword(s):  
Measurement Uncertainty ◽  
Smart Grids ◽  
Flow Analysis ◽  
Load Flow ◽  
Load Flow Analysis

Load Flow Analysis in Smart Grids

2019 ◽  
pp. 187-199
Author(s):  
Osman Hasan ◽  
Awais Mahmood ◽  
Syed Rafay Hasan
Keyword(s):  
Computational Intelligence ◽  
Smart Grids ◽  
Flow Analysis ◽  
Vital Role ◽  
Load Flow ◽  
Power Grids ◽  
Safety Critical ◽  
Load Flow Analysis ◽  
Comprehensive Survey ◽  
The Given

Load flow analysis is widely used to estimate the flow of various electrical parameters such as the voltage, current, and power in power grids. These estimates allow us to effectively and reliably manage the given grid under random and uncertain conditions. Given the enormous amount of randomness and uncertainties in the factors that affect the smart grids, compared to traditional power grids, a complete and rigorous load flow analysis holds a vital role in ensuring the reliability of this safety-critical domain. In this chapter, the authors describe smart grids in terms of their basic components and then categorize the factors that affect the loads in smart grids. This is followed by a comprehensive survey of various existing load flow analysis techniques (i.e., numerical, computational intelligence, and probabilistic).

An Innovative Measurement Approach for Load Flow Analysis in MV Smart Grids

2016 ◽  
Vol 7 (2) ◽  
pp. 889-896 ◽  
Author(s):  
Antonio Cataliotti ◽  
Valentina Cosentino ◽  
Dario Di Cara ◽  
Pierluca Russotto ◽  
Enrico Telaretti ◽  
...  
Keyword(s):  
Smart Grids ◽  
Flow Analysis ◽  
Load Flow ◽  
Load Flow Analysis ◽  
Measurement Approach

LV Measurement Device Placement for Load Flow Analysis in MV Smart Grids

2016 ◽  
Vol 65 (5) ◽  
pp. 999-1006 ◽  
Author(s):  
Antonio Cataliotti ◽  
Valentina Cosentino ◽  
Dario Di Cara ◽  
Giovanni Tine
Keyword(s):  
Smart Grids ◽  
Flow Analysis ◽  
Load Flow ◽  
Measurement Device ◽  
Load Flow Analysis ◽  
Device Placement

Load Flow Analysis in Smart Grids

2018 ◽  
pp. 3103-3113
Author(s):  
Osman Hasan ◽  
Awais Mahmood ◽  
Syed Rafay Hasan
Keyword(s):  
Computational Intelligence ◽  
Smart Grids ◽  
Flow Analysis ◽  
Vital Role ◽  
Load Flow ◽  
Power Grids ◽  
Safety Critical ◽  
Load Flow Analysis ◽  
Comprehensive Survey ◽  
The Given

Load flow analysis is widely used to estimate the flow of various electrical parameters, such as the voltage, current and power, in power grids. These estimates allow us to effectively and reliably manage the given grid under random and uncertain conditions. Given the enormous amount of randomness and uncertainties in the factors that affect the smart grids, compared to traditional power grids, a complete and rigorous load flow analysis holds a vital role in ensuring the reliability of this safety-critical domain. In this chapter, we describe smart grids in terms of their basic components and then categorize the factors that affect the loads in smart grids. This is followed by a comprehensive survey of various existing load flow analysis techniques, i.e., numerical, computational intelligence and probabilistic.

A Fog Model for Dynamic Load Flow Analysis in Smart Grids

2018 ◽  
Author(s):  
Eric Barros ◽  
Maycon Peixoto ◽  
Dionisio Leite ◽  
Bruno Batista ◽  
Bruno Kuehne
Keyword(s):  
Dynamic Load ◽  
Smart Grids ◽  
Flow Analysis ◽  
Load Flow ◽  
Load Flow Analysis

Operation Characteristics of Zone 3 Distance Protection in Wind Power Systems with Fixed-Speed Induction Generators

2011 ◽  
Vol 12 (4) ◽  
Author(s):  
Shenghu Li
Keyword(s):  
Power Systems ◽  
Wind Power ◽  
Reactive Power ◽  
Flow Analysis ◽  
Load Flow ◽  
Synchronous Generators ◽  
Induction Generators ◽  
Load Flow Analysis ◽  
Wind Power Systems ◽  
Operation Characteristics

The induction generators (IGs) are basic to wind energy conversion. They produce the active power and consume the reactive power, with the voltage characteristics fragile compared with that of the synchronous generators and doubly-fed IGs. In the stressed system states, they may intensify var imbalance, yielding undesirable operation of zone 3 impedance relays.In this paper, the operation characteristics of the zone 3 relays in the wind power systems is studied. With the theoretical and load flow analysis, it is proved that the equivalent impedance of the IGs lies in the 2nd quadrature, possibly seen as the backward faults by the mho relays, i.e. the apparent impedance enters into the protection region from the left side. The undesirable operation may be caused by more wind power, larger load, less var compensation, and larger torque angle.

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