A SUMMARY OF ENVIRONMENTAL ECONOMIC-DISPATCH ALGORITHMS

Traditionally electric power systems are operated in such a way that t he total fuel cost is minimized regardless of emissions produced. With increased requirements for environmental protection, alternative stra tegies are required. This paper presents a summary of algorithms of en vironmental-economic dispatch in electric power systems since 1970. Th e algorithms attempt to reduce the production of atmospheric emissions such as NO(x) and SO(x) caused by the operation of fossil-fueled ther mal generation. Such reduction is achieved by including emissions eith er as a constraint or as a weighted function in the objective of the o verall dispatching problem.