Speed control of a PV powered DC motor driving a self-excited 3-phase induction generator for maximum utilization efficiency

Journal Article · Sat Nov 30 23:00:00 EST 1996 · IEEE Transactions on Energy Conversion

DOI:https://doi.org/10.1109/60.556377· OSTI ID:438809

Alghuwainem, S M ^[1]

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1. King Saud Univ., Riyadh (Saudi Arabia). Electrical Engineering Dept.

Photovoltaic (PV) powered dc motors driving dedicated loads (e.g., water pumps) are increasingly used in the remote rural areas of may developing countries. The key to their success is simplicity (direct coupling, no dc-ac conversion, no storage batteries, etc.). Because of the relatively high cost of the PV array, the system designer is interested in maximizing its utilization efficiency. A PV powered dc motor can also be used to drive a three-phase self-excited induction generator (SEIG). This arrangement is useful as part of an integrated renewable energy system (IRES), which takes advantage of the inherent diversity of wind and solar energy in most developing countries to improve power quality. The SEIG is driven by a wind-turbine, dc motor, or both. Another advantage of this arrangement is its versatile control characteristics through the dc motor control. This paper describes a technique to maximize the utilization efficiency of the PV array by controlling the field current of the dc motor through a dc chopper.

• OSTI ID: 438809
• Report Number(s): CONF-960725--
• Journal Information: IEEE Transactions on Energy Conversion, Journal Name: IEEE Transactions on Energy Conversion Journal Issue: 4 Vol. 11; ISSN 0885-8969; ISSN ITCNE4
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
17 WIND ENERGY
CAPACITY
ELECTRIC GENERATORS
ELECTRIC MOTORS
ENERGY EFFICIENCY
PERFORMANCE
PHOTOVOLTAIC POWER SUPPLIES
SPEED REGULATORS