A novel single stage step up/down AC/DC converter for small BLDC wind power generators

Pan, Ching‐Tsai; Chang, Ting‐Yu; Fang, Emily

doi:10.1109/peds.2011.6147355

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…Thus the variation of self and mutual inductances with rotor angular position can be neglected. Accordingly, the voltage equations are expressed as a set of differential equations [5] Based on the symmetrical three phase windings of the stator, the mutual voltages cancel each other. As a result, the BLDCG voltage equations become: Where: K e : the machine EMF constant incorporating the permanent magnet flux linkage ω: the electrical frequency From Fig.4, the induced EMF can be written as a function of time.…”

Section: Mathematical Modelmentioning

confidence: 99%

“…This leads to large changes in BLDCG output voltage. Some attempts have been reported in literature to overcome this problem [2][3][4][5][6][7][8][9][10][11]. A digital control technique for controlling the output voltage of BLDCG against shaft speed variation using three phase controlled bridge has been proposed [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…The control concept of both two techniques is based on comparing the actual speed of the prime mover with a reference speed value. A single stage step up/down AC/DC converter for small wind power BLDC generator has been presented [5]. This converter consists of a three phase diode bridge rectifier and a C'uk converter.…”

Section: Introductionmentioning

confidence: 99%

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Closed Loop Voltage Control of Brushless Dc Generator for Vehicle Application

Azazi

Kalilah

Shanab

et al. 2015

ERJ. Engineering Research Journal

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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.

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Section: Mathematical Modelmentioning

confidence: 99%