Process transient stability simulation calculation based on power flow which uses the differ-ent accuracy of synchronous generator mathematical model in power system comprehensive program.
A comprehensive program of calculation of background values was compiled on the basis of statistical testing software on APPLE-2 computer. Finally the background values in Beijing area, as an example, were analysed by this comprehensive program and the results were satisfactory.
Reliability-optimization design of partially prestressed concrete simply-sup-ported T-beam in highway bridge is studied in the paper by incorporating the structural reliability theory and optimum design method. First,the reliability-optimization model is estab-lished,and then the comprehensive program is worked out,in which the constrained nonlinear optimization is performd by augmented Lagrange Method coupled with Powell’s direct search method of unconstrained nonlinear optimization techniques ,finally ,an example is given and the calculated results are analysed.
In pace with the development of ECPN and the change of management structure, the recent achievements in aspects of technology and management, including EMS, price estimation system, MIS, dispatching training system(DTS), East china power system data net(ECD net), comprehensive program for relay protection computation and PSS/E program for grid power flow and stability computation in East China Power Dispatching Bureau(ECPDB) are described.
Utilizing the function of user defined model(UDM)supplied by Power system analysis synthesis program(PSASP)which is the most popular software used in china power system analysis the differential equation load model is interfaced with PSASP in the transient stability analysis of EPRI-36 buses system successfully.
Some problems of MATLAB in robust design are discussed. It is pointed out thatthe D-F iteration μ synthesis program in MATLAB 5.0 ~ 5.3 stops too early. A revisingmethod is given to get the D-F iteration run normally and correctly.
According to some problems in Sichuan power system, which are brought out for the operation of Ertan hydroplant and 500 kV transmission systems in practical application, the Power System Analyze Synthesis Program (PSASP) is used to study the system voltage stabilization under the different operating modes and the typical disturbances by the Power Flow Analyze, the Static Voltage Stabilization Analyze and the Transient Analyze.
It proceeds by analyzing the source program, translating the invariant obtained at the source level, and then checking the soundness of the translated invariant with respect to the assembly program.
It consequently automates an important task of modular test generation, supplying a test pattern assembly program with a specification how to transform module test patterns into circuit level pattern.
Because of this reason, a comprehensive program of medical, transcatheter, and surgical treatment is necessary to improve the long-term outlook of these infants.
A comprehensive program focused on foot-specific patient education, skin and nail care, and protective footwear lowers the incidence of diabetic foot ulcers and lower extremity amputations.
This article derives the angular position equation of the driven links of the geared four-bar linkages and the common formula calculating the transmission ratio. Both the equation and the formula are applicable to the three-class, two-class and single-class epicyclic geared linkages. The conditions which the instantaneous dwells of the mechanisms must have are also introduced here. The article simplifies appropriately the mechanisms synthesis of some of the special mechanisms and position, and gives explana...
Based on the principle of subgoal deduction (SGD), a mechanical reasoning system is developed, which lessens considerably the difficulties caused by the "combinatory explosion", a main drawback of resolution method. An algorithm of automatic synthesis of recursive program using SGD technique and structural induction principle is designed and implemented on FELIX C-256 computer. This is illustrated by a derivation of the "SOET" program.
综合程序
comprehensive program
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