Title :
Considerations for an economic evaluation of AC versus DC technology for paper machine drives
Author_Institution :
Simons-Eastern Consultants Inc., Atlanta, GA, USA
Abstract :
Many of the considerations for comparing AC and DC drive systems for paper machines are discussed. These include the system purchase price, spare parts, motor cooling, cable cost, power factor, harmonics, efficiency, motor and controller maintenance, and space requirements. The net present value (NPV) technique is presented for making an economic evaluation between the two technologies. The NPV method of investment evaluation accounts for the time value of money by discounting all cash flows to present value using the required rate of return
Keywords :
economics; electric drives; paper industry; AC drive; DC drive; NPV method; cable cost; cash flows; controller maintenance; economic evaluation; efficiency; harmonics; investment evaluation; motor cooling; motor maintenance; net present value technique; paper machines; power factor; purchase price; space requirements; spare parts; Cooling; Costs; Drives; Paper making machines; Power generation economics; Power system economics; Power system harmonics; Reactive power; Space technology; Temperature control;
Journal_Title :
Industry Applications, IEEE Transactions on
