A novel node ordering approach for parallel load flow analysis

2001 ◽  
Vol 11 (4) ◽  
pp. 267-273 ◽  
Author(s):  
S.-D. Chen ◽  
J.-F. Chen
Keyword(s):  
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.

Load Flow Analysis for Micro Grid

2021 ◽  
pp. 177-196
Author(s):  
P. Sivaraman ◽  
C. Sharmeela ◽  
S. Elango
Keyword(s):  
Flow Analysis ◽  
Load Flow ◽  
Load Flow Analysis ◽  
Micro Grid

Structure, singular points and existence of multiple solutions in load flow analysis

1980 ◽  
Vol 100 (3) ◽  
pp. 107-115 ◽  
Author(s):  
Yousuke Nakanishi ◽  
Kenji Yamada ◽  
Hiroshi Nagasawa ◽  
Shini'Chi Iwamoto ◽  
Yasuo Tamura
Keyword(s):  
Multiple Solutions ◽  
Flow Analysis ◽  
Load Flow ◽  
Singular Points ◽  
Load Flow Analysis
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