Improvement of induction motor drive systems supplied by photovoltaic arrays with frequency control

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · IEEE Transactions on Energy Conversion (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/60.300150· OSTI ID:7157454

Yao, Y; Ramshaw, R S ^[1]; Bustamante, P ^[2]

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1. Univ. of Waterloo, Ontario (Canada). Dept. of Electrical and Computer Engineering
2. Novatronics Inc., Stratford, Ontario (Canada)

The overall efficiency of an induction motor drive system, powered by a photovoltaic (PV) array, drops significantly when the insolation condition varies away from its nominal level. This problem can be overcome using a control method in which the frequency of the inverter's PWM control signal is adjusted according to the insolation and temperature conditions. The motor speed and, therefore, the power delivered to the load, are adjusted by controlling the inverter's frequency. This eliminates the mismatch between the maximum power that is available from the source and the power that is required by the load. Simulation results presented in this paper show that using the proposed control system allows the induction motor drive system to maintain its optimum efficiency and deliver consistently more power to the load when insolation and temperature vary from the nominal level. This method also offers an improvement in the system stability method.

• OSTI ID: 7157454
• Journal Information: IEEE Transactions on Energy Conversion (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Energy Conversion (Institute of Electrical and Electronics Engineers); (United States) Vol. 9:2; ISSN 0885-8969; ISSN ITCNE4
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140600* -- Solar Energy-- Photovoltaic Power Systems
CONTROL
CONTROL EQUIPMENT
EFFICIENCY
ELECTRIC MOTORS
ELECTRONIC EQUIPMENT
ENERGY EFFICIENCY
ENGINES
EQUIPMENT
FREQUENCY CONTROL
INSOLATION
MOTORS
OPTIMIZATION
PHOTOVOLTAIC POWER SUPPLIES
POWER SUPPLIES
SOLAR EQUIPMENT
SPEED REGULATORS