Computation of multiple solution of load flow equation by simplicial subdivision homotopy method

1989 ◽  
Vol 109 (1) ◽  
pp. 31-39 ◽  
Author(s):  
Kohshi Okumura ◽  
Takeshi Fujita ◽  
Akira Kijima
Keyword(s):  
Flow Equation ◽  
Homotopy Method ◽  
Load Flow ◽  
Multiple Solution ◽  
Simplicial Subdivision

Establishment of Valve Control Mathematical Model of Hydraulic Differential Cylinder

2012 ◽  
Vol 542-543 ◽  
pp. 1124-1131 ◽  
Author(s):  
Ying Xin ◽  
Yao Yao ◽  
Ming Liu ◽  
Wen Yu Zhang
Keyword(s):  
Transfer Function ◽  
Dynamic Balance ◽  
Control Valve ◽  
Hydraulic Cylinder ◽  
Flow Equation ◽  
Load Flow ◽  
Engineering Practice ◽  
Load Pressure ◽  
Servo Valve ◽  
Elastic Load

From a practical point of hydraulic servo system, this paper researches on four-way servo valve working as three-way servo valve combined three-way pressure reducing valve forming differential form controlling asymmetric hydraulic cylinder characteristics using the classical control theory. According to the characteristics of hydraulic cylinder extends and retracts, it redefines the load pressure and load flow, establishes the load flow equation of control valve, the continuity equation of hydraulic cylinder and dynamic balance equations of the hydraulic cylinder which connected with the load, reaches the valve controlled asymmetrical cylinder system transfer function. Considering engineering practice, simplifying load types, it respectively obtains the transfer function of elastic load and none elastic load under the system which provides theoretical basis for analysing the static and dynamic characteristics of the valve controlled asymmetrical cylinder system.

Application of the homotopy method to load flow solution-finding all the multiple solutions

1985 ◽  
Vol 9 (3) ◽  
pp. 263-272 ◽  
Author(s):  
J.F. Chen ◽  
C.E. Lin ◽  
C.T. Pan ◽  
C.L. Huang
Keyword(s):  
Multiple Solutions ◽  
Homotopy Method ◽  
Load Flow ◽  
Flow Solution

Visualization of Results of Load Flow Calculation and Dynamic Simulation

1995 ◽  
Vol 115 (5) ◽  
pp. 479-486
Author(s):  
Naoki Kobayashi ◽  
Takeshi Yamada ◽  
Hiroshi Okamoto ◽  
Yasuyuki Tada ◽  
Atsushi Kurita ◽  
...  
Keyword(s):  
Dynamic Simulation ◽  
Load Flow ◽  
Flow Calculation ◽  
Load Flow Calculation
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