Optimal Design of UPFC Based Damping Controller Using PSO and QPSO

2013 ◽  
pp. 157-186
Author(s):  
Hossein Shayeghi ◽  
Amin Safari
Keyword(s):  
Optimal Design ◽  
Damping Controller

Coordinative Optimal Design for PSS and Auxiliary Damping Controller on SVC under Multi-Operating Conditions

2013 ◽  
Vol 732-733 ◽  
pp. 823-829 ◽  
Author(s):  
Xiao Gang Miao ◽  
Bu Han Zhang ◽  
Zhong Cheng Li ◽  
Jun Li Wu ◽  
Cheng Xiong Mao ◽  
...  
Keyword(s):  
Optimal Design ◽  
Back Propagation ◽  
Low Frequency ◽  
Operating Conditions ◽  
Low Frequency Oscillation ◽  
Operation Condition ◽  
Damping Controllers ◽  
System Stabilizer ◽  
Ac Transmission ◽  
Damping Controller

Based on power system stabilizer (PSS) and the damping controller of flexible AC transmission system (FACTS),a problem of optimal design is researched by the example of static var compensator (SVC). Minimum damp ratio of system electromechanical oscillation modes eigenvalue in the weak damping operation condition is selected as the object function. Parameters of damping controllers are optimized by the algorithm which is combined by genetic algorithm (GA) and back propagation (BP) neural network based on adaboost (Ada-BP). Simulation shows the optimized damping controllers can restrain the low frequency oscillation in multi-operating conditions of system. The algorithm provides an effective solution for optimization calculations which calls the complicated calculations.

Crack divergence phenomena in tempered glass

2020 ◽  
Vol 13 (3) ◽  
pp. 115-129
Author(s):  
Shin’ichi Aratani
Keyword(s):  
Optimal Design ◽  
High Speed ◽  
Glass Plate ◽  
Acute Angle ◽  
Divergence Angle ◽  
High Speed Photography ◽  
Tempered Glass ◽  
Thick Glass

High speed photography using the Cranz-Schardin camera was performed to study the crack divergence and divergence angle in thermally tempered glass. A tempered 3.5 mm thick glass plate was used as a specimen. It was shown that two types of bifurcation and branching existed as the crack divergence. The divergence angle was smaller than the value calculated from the principle of optimal design and showed an acute angle.

G Optimal Design in Non linear Models to Increase Silicon Oxide Purity Levels and Electrical Conductivity

2018 ◽  
pp. 150-155
Author(s):  
Muklas Rivai
Keyword(s):  
Electrical Conductivity ◽  
Optimal Design ◽  
Linear Models ◽  
Silicon Oxide ◽  
Information Matrix ◽  
Relevant Information ◽  
Non Linear

Optimal design is a design which required in determining the points of variable factors that would be attempted to optimize the relevant information so that fulfilled the desired criteria. The optimal fulfillment criteria based on the information matrix of the selected model.

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