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Methodology and computer package for generation rescheduling

Methodology and computer package for generation rescheduling

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  • Author(s): D. Gan 1 ; Z. Qu 1 ; H. Cai 1 ; X. Wang 2
    • View affiliations
    • Affiliations: 1: Department of Electrical and Computer Engineering, University of Central Florida, Orlando, USA
      2: School of Electrical Engineering, Xi'an Jiaotong University, Shaanxi, Peoples' Republic of China
  • Source: Volume 144, Issue 3, May 1997, p. 301 – 307
    DOI:  10.1049/ip-gtd:19971136 , Print ISSN 1350-2360, Online ISSN 1359-7051
© IEE
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Generation rescheduling is a cost-effective way to enhance steady-state and dynamic security. The paper presents an improved formulation for generation rescheduling and develops an iterative solution procedure. The proposed method can be used to assist operators to eliminate potential steady-state insecurity, dynamic insecurity, or their combination. Steady-state security is established by the well known (n – 1) criterion which deals with thermal limits of transmission lines. Dynamic security is defined in such a fashion that transient stability of the system is maintained under any of the contingencies which may occur at each end of every transmission line of a power system. An attractive feature of the proposed method is that it is reliable, realistic and easy to understand since dynamic security is checked in the method by an integration procedure. Simulation results of a 36-machine 200-node practical power system are demonstrated.

Inspec keywords: power system transients; iterative methods; scheduling; electric power generation; digital simulation; power system stability; power system security; power transmission lines; power system analysis computing

Other keywords: 36-machine 200-node practical power system; integration procedure; transmission line thermal limits; mathematical programming; steady-state insecurity elimination; computer package; steady-state dynamic security enhancement; dynamic insecurity elimination; steady state security; dynamic security; iterative solution; generation rescheduling; transient stability

Subjects: Security aspects; Power transmission lines and cables; Numerical analysis; Power engineering computing; Interpolation and function approximation (numerical analysis); Generating stations and plants; Power system management, operation and economics; Interpolation and function approximation (numerical analysis)

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