Showing papers in "IEEE Transactions on Energy Conversion in 1989"

Application of operations research in automatic generation control of hydropower plants

Abstract: An algorithm is presented to solve the problem of automatic generation control (AGC) for hydropower plants stage by stage, using in each stage a different method of operations research: dynamic programming, 0-1 integer programming, and the principle of equal incremental. The algorithm has the following advantages: short time of calculation, less computer memory required, the ability to take aspects of economic and safety requirements into consideration, flexibility, etc. This algorithm is suitable for real-time AGC. A brief description of the realization of AGC in the left powerhouse of the Gezhouba Hydropower Plant is presented. >

Utilization of commercial-grade items in nuclear safety applications

Abstract: A summary is presented of a methodology for the evaluation, acceptance, and use of commercially procured items for nuclear safety applications. The methodology has been developed through the: research and compilation of existing codes, standards, regulations and guidance; compilation of existing practices and procedures; and the development of a generic process for all components and subcomponents. The generic process for the acceptance of commercial-grade items contains four alternative methods. It provides guidance to the nuclear industry that will: define methodologies for classifying and dedicating commercial items; enable utilities to significantly reduce procurement, engineering, and quality-assurance cost related to commercial-item use; and minimize the potential for fines, penalties or plant shutdown due to incorrect use or unavailability of spare/replacement items. >