论文信息 - Coherency Based Decomposition and Aggregation

Coherency Based Decomposition and Aggregation

Abstract Relationship between coherency, area decomposition and aggregation is investigated for a class of models of electromechanical networks, including power system models. It is established that coherency conditions and a physically meaningful area-aggregate, reproducing a prescribed set of system modes, depend on external connections only. Coherency with respect to a set of slowest modes (“slow coherency”) and an earlier developed grouping algorithm are used to identify weakly coupled areas, as demonstrated on a 48-machine model of the Northeast United States power system

[1] M. Aoki. Some approximation methods for estimation and control of large scale systems , 1978 .

[2] Joe H. Chow,et al. Area decomposition for electromechanical models of power systems , 1980, Autom..

[3] M. Darwish,et al. Coherence, vector Liapunov functions and large-scale power systems , 1979 .

[4] Felix F. Wu,et al. COHERENCY IDENTIFICATION FOR POWER SYSTEM DYNAMIC EQUIVALENTS. , 1978 .

[5] William R. Perkins,et al. Generalized Hessenberg transformations for reduced-order modelling of large-scale systems† , 1978 .

[6] K. Neil Stanton,et al. Dynamic Energy Balance Studies for Simulation of Power-Frequency Transients , 1972 .

[7] Petar V. Kokotovic,et al. Subsystems, time scales and multimodeling , 1981, Autom..

[8] R. Schlueter,et al. Modal-Coherent Equivalents Derived from an RMS Coherency Measure , 1980, IEEE Transactions on Power Apparatus and Systems.

[9] M. Aoki. Control of large-scale dynamic systems by aggregation , 1968 .

[10] Robin Podmore,et al. Identification of Coherent Generators for Dynamic Equivalents , 1978, IEEE Transactions on Power Apparatus and Systems.

[11] P. Kokotovic. A Riccati equation for block-diagonalization of ill-conditioned systems , 1975 .

[12] Fred C. Schweppe,et al. Distance Measures and Coherency Recognition for Transient Stability Equivalents , 1973 .