Substantiation of the effectiveness of construction of hydroelectric plants by the multipurpose optimization method

Abstract

1. Hydroelectric plants have many technical advantages in comparison with thermal electric plants as, for example with regard to the extent of the regulating range, the speed in picking up and dropping the load under normal and emergency conditions, conservation of air quality, the conservation of the nonrenewable fuel resources for the furture generations, etc. In the current optimization methods, these advantages are not considered at all, or are considered insufficiently. 2. The multipurpose optimization method developed at the Leningrad Polytechnic Institute permits taking into account with any degree of accuracy not only the quantitative differences among the alternatives in the part corresponding to the equivalent outlays, but also the qualitative differences, for example, in the part corresponding to the social effects, protection of the environment, etc. This method makes it possible to disclose to a fuller extent the effectiveness of hydroelectric plants on the basis of all the indices, and not only of the equivalent outlays, as is done at the present time. If the compared alternatives yield identical results, then in the multipurpose optimization method the most effective alternative is that involving the minimum equivalent outlays. 3. A combination of the method of competent evaluations by experts and of the factor experiment method permits using already developed multipurpose optimization models for substantiating the effectiveness of hydroelectric plants in electric power systems. However, in order to obtain more definite results, it is necessary to carry out additional investigations and practical analyses concerning the justification of the composition of the objectives and the evaluation of their significance.