IMPROVED COST-FUNCTIONS FOR ECONOMIC-DISPATCH COMPUTATIONS

被引：16

作者：

LIANG, ZX

GLOVER, JD

机构：

[1] Electrical and Computer Engineering Department, Northeastern University, Boston

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 1991年 / 6卷 / 02期

关键词：

GENERATOR FUEL COST CURVES; POLYNOMIAL CURVE FITTING; GRAM-SCHMIDT ORTHONORMALIZATION; LEAST-SQUARES; ECONOMIC DISPATCH;

D O I：

10.1109/59.76731

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Representation of generator fuel cost curves by polynomils in real-time economic dispatch is standard industry practice. Two polynomial curve fitting methods, Gram-Schmidt orthonormalization and least-squares, are evaluated here. It is shown that the Gram-Schmidt method, which does not require matrix inversion, gives more accurate fuel cost curves. Also, a constraint equation can be included in both methods to insure that incremental cost curves are monotonically increasing. Numerical examples are included to demonstrate the results.

引用

页码：821 / 829

页数：9