Analysis of the Parallel-Bridge Rectifier System

Grid connection of renewable energy sources is essential if they are to be effectively exploited, but grid connection brings problems of voltage fluctuation and harmonic distortion. In the paper, appropriate modeling and simulation techniques are discussed for studying the voltage fluctuation and harmonic distortion in a network to which variable speed wind turbines are connected. Case studies on a distribution network show that the voltage fluctuation and harmonic problems can be minimized with the proposed power electronics interface and control system while the wind energy conversion system captures the maximum power from the wind as wind speed varies. The studies have also demonstrated the ability of the advanced converter to assist the system voltage regulation.Index Terms-Harmonic minimization, maximum power capture, reactive power control, voltage regulation, wind power.

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“…3. The multi-phase rectifier system can be seen as an extension of a three phase parallel bridge rectifier circuit reported in 1970s [7].…”

Section: Pm Generator and Rectifier System Modelingmentioning

confidence: 99%

Grid power quality with variable speed wind turbines

Chen

Spooner

2001

IEEE Trans. On energy Conversion

297

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“…For voltage control Proportional and Integral (PI) is used and for current loop Hysteresis controller. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. The simulation results show the very low THD of 0.44% and by obtaining unity power factor at the source side and load side.…”

Section: Introductionmentioning

confidence: 99%

“…This states that the parallel-bridge rectifier is better than other conventional rectifiers by providing reduced losses and increased power output. [11] This paper proposes a large current rectifier using a fork-connected auto transformer and dc-side current injection. A singlephase full bridge inverter is used to inject the compensation currents into the dc side of two threephase half-wave rectifiers which reduces harmonics in input current side.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Three Phase Two Quadrant Controlled Converter for DC Load Applications

Siddharthan¹,

Ayyappa²,

Kumar³

2019

IJSRST

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This paper provides the operation and analysis of three phase two quadrant controlled converter. In this paper, the converter is being checked with varying the duty cycle for two different loads R and RL. The Power factor, Total Harmonic Distortion (THD) and efficiency are better for very low duty cycle which is the same for RL load. This analysis estimates THD and power factor at various conditions. The FFT analysis is done to find the harmonic content present in the input current waveform. This analysis is done using MATLAB software.

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