CLOSED LOOP VOLTAGE CONTROL OF BRUSHLESS DC GENERATOR FOR VEHICLE APPLICATION | ||||
| ERJ. Engineering Research Journal | ||||
| Article 4, Volume 38, Issue 2, April 2015, Page 93-100 PDF (656.21 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2015.66794 | ||||
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| Authors | ||||
| Haitham Z Azazi; Safaa A Kalilah; Mervet A Shanab; Fathy E AbdelKader | ||||
| Electrical Engineering Department, Faculty of Engineering, Shebin El-Kom, Menoufiya University, Egypt | ||||
| Abstract | ||||
| Brushless DC generator (BLDCG) is one of the most popular machines in variable speed drives. That is due to its numerous advantages which are high efficiency and power density, light weight, compact design and low maintenance. The most common applications, in which BLDCG has been employed, are wind energy and transportation systems. These applications have a main drawback that they are featured by large speed fluctuations accomplished by wind turbines and internal consumption engines. This speed variation results in changes in the BLDCG output voltage. This paper aims to maintain the generator output voltage at a constant level with variation of both load and prime mover speed. This is achieved using a simple closed loop control system including a variable reactor. This study belongs to vehicle application, since it is recommended to replace the brushed claw pole synchronous generator by BLDCG. Throughout the present work, the mathematical model, along with a matlab/simulink program, have been developed and implemented for BLDCG system to predict its operating characteristics. An experimental setup has been built and tested for the sake of comparison. Good agreement between the theoretical and experimental results is obtained. This confirms the validity of the theoretical analysis. Moreover, good performance of the BLDCG with the proposed simple control method is obtainable. | ||||
| Keywords | ||||
| Brushless DC Generator (BLDCG); Variable reactor; Variable speed generator; Wind Energy Generators | ||||
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