Determination of DG allocation with modal participation factor to enhance voltage stability

2009 ◽  
Author(s):  
A. Arief ◽  
M.B. Nappu ◽  
A. Nizar ◽  
Z.Y. Dong
Keyword(s):  
Voltage Stability ◽  
Participation Factor

Determination of Torsional Mode and Analysis of Torsional Resistance

2012 ◽  
Vol 204-208 ◽  
pp. 1242-1246
Author(s):  
Hua Bin Gao ◽  
Yong Sheng Zhang
Keyword(s):  
Torsional Mode ◽  
Factor Method ◽  
Torsional Resistance ◽  
Structure Torsion ◽  
Mass Participation ◽  
Structural Mode ◽  
Manual Calculation ◽  
Participation Factor

At present, structural designers have many different views on determination of torsional mode. This paper adopts the structural mode factor and the mass participation factor method to determine structure torsional mode. Use the shear correction to simplify the calculation of structure torsion, derivate the relevant formulas of torsional effect, it has guide significance for manual calculation of structural torsion; Analysis of structural torsion resistant measures finally.

scholarly journals A Scheme for Position and Capacity Determination of Distributed Generation Considering Load Distribution and System Voltage Stability

2020 ◽  
Vol 53 (6) ◽  
pp. 861-867
Author(s):  
Haoying Fan ◽  
Daobing Liu ◽  
Liugen Li ◽  
Guoxiao Liu
Keyword(s):  
Distributed Generation ◽  
Load Distribution ◽  
Voltage Stability ◽  
Stability Margin ◽  
Equivalent Impedance ◽  
System Calculation ◽  
Reference Index ◽  
The Relationship ◽  
Capacity Determination

The purpose of this study was to investigate a simplified distributed generation (DG) Position and Capacity Determination model (DG-PCD model) based on the coupling relationship between load distribution and voltage stability in the distribution network. First, based on the relationship between voltage stability and system equivalent impedance and the relationship between system equivalent impedance and load distribution, the relationship between voltage stability and load distribution is deduced, and the concept of influencing impedance mode is proposed and used in DG site selection. Then, build a DG-PCD model considering voltage stability, active power loss and line thermal stability margin, and use genetic algorithm (GA) to solve the model. Finally, an improved IEEE33-node system calculation example is analyzed. The results show that compared with the existing methods, the proposed method can get better results faster. This Proposed method not only simplifies the DG-PCD model, but also quantifies the relationship between voltage stability and load distribution. This provides a new reference index for the voltage control of the power grid.

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