Computer code for the simulation and optimization of utility system operation with nuclear plants
From nuclear utilities planning methods symposium; Chattanooga, Tennessee (16 Jan 1974). In collection of papers presented at the nuclear uttlities planning methods symposium. The work described in this paper is concerned with the midrange (5-8 year) operation of electric power generation systems. In particular, it is concerned with utilizing system simulation and optimization techniques to asaist in nuclear and fossil plant generation planning. To approach the issues appropriate to mid-range utility operation, a computer model (ORSIM) has been developed as part of a cooperative effort between the AEC, TVA, and Commonwealth Edison Company. For any predetermined nuclear refueling schedule, the ORSIM model determines an approximately optimal plan of operation for systems which may contain fossil, nuclear, hydro, and pumped-storage units. This includes the determination of a maintenance schedule for the non-nuclear units and a schedule of energy delivery for each plant in the system. The criterion of optimality is the minimization of the total discounted operating cost of the system over the specified study period. Over each subinterval of this period, the model computes the expected station load factors, the loss of load probability and unserved energy for the system, and the production costs of operating so as to meet the forecasted system loads. The code takes account of variations and growth in demand over the planning horizon, occurrences of unit forced outages, planned shutdowns for nuclear refuelings, maintenance scheduling, allocations of fixed hydro and nuclear energies, and interactions between nuclear unit reloadings and fuel costs. (13 references) (auth)
- Research Organization:
- Oak Ridge National Lab., TN; comps.; Oak Ridge National Lab., Tenn. (USA)
- NSA Number:
- NSA-29-020313
- OSTI ID:
- 4332354
- Report Number(s):
- ORNL-TM--4443
- Country of Publication:
- United States
- Language:
- English
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