Generalized optimum PWM technique: analysis and application to battery charging

Thesis/Dissertation · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5506946

Elhussein, A E.M.

The basic variables that characterize the classes of waveforms considered for optimization of PWM waveforms are evaluated. To alleviate computational problems a shift to the time domain is found quite attractive. This shift greatly reduces the computational effort and time and will bring the applications of optimum PWM waveforms techniques closer to the real time application. Another advantage of the change to the time domain is the ease of applying the proposed method weighting functions. This provides a more systematic way of handling the problem and allows the designer more freedom in choosing the weighting function that suits his application. The application of the method to battery charging is discussed. Voltage or current waveforms at the input terminals of the rectifier are varied in such a way to approximate a sinusoidal waveform. These may be voltage or current waveforms. The waveforms are obtained by the suggested optimization technique. It is shown that by optimizing the voltage (or current) at the terminals of the battery pack the charger input current is optimized as well. Simulation results are presented to verify the operation of these chargers and to demonstrate the effects of such parameters as battery voltage to AC input voltage ratio and the circuit inductance.

• Research Organization: Michigan Univ., Ann Arbor (USA)
• OSTI ID: 5506946
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250900* -- Energy Storage-- Batteries
BATTERY CHARGING
OPTIMIZATION
SIMULATION
WAVE FORMS