Control of a Doubly-fed Induction Generator with an Indirect Matrix Converter with changing DC voltage

Reyes, E.; Peña, R.; Cárdenas, Roberto; Clare, John; Wheeler, Patrick

doi:10.1109/isie.2010.5636925

Cited by 5 publications

(4 citation statements)

References 21 publications

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“…Hence, the reduction in the "virtual dc link" voltage strategy [10], when the demanded output voltage is low, is well suited for DFIG control since frequent operation around the synchronous speed is normal. Preliminary results using this strategy are presented in [15]. Therefore, at any given slip speed, a reduced dc voltage is generated by the input converter so that the required rotor voltage is just produced without using overmodulation.…”

Section: Introductionmentioning

confidence: 99%

Control of a Doubly Fed Induction Generator via an Indirect Matrix Converter With Changing DC Voltage

Peña

Cárdenas

Reyes

et al. 2011

IEEE Trans. Ind. Electron.

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This paper presents a control strategy for a doubly fed induction generator (DFIG) using an indirect matrix converter, which consists of an input side matrix converter and an output side voltage source converter (VSC). The capability of the input converter to generate different "virtual dc link" voltage levels is exploited. The commutation of the VSI with reduced voltage is illustrated for operating points where the output voltage demand is low without any deterioration of the current control performance. The proposed method leads to a reduction in the commutation losses in the output converter and reduced commonmode voltage. For the input converter, soft switching commutation is obtained by synchronizing the input and output converter pulsewidth-modulation patterns. This modulation strategy is particularly applicable in DFIG applications because the required rotor voltage decreases when the DFIG speed is close to the synchronous speed. The complete control strategy is experimentally validated using a 2-kW rig.Index Terms-AC machines, machine vector control and space vector pulsewidth modulation (PWM), matrix converter (MC).

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Section: Introductionmentioning

confidence: 99%

Control of a Doubly Fed Induction Generator via an Indirect Matrix Converter With Changing DC Voltage

Peña

Cárdenas

Reyes

et al. 2011

IEEE Trans. Ind. Electron.

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“…On the output stage, the space vector modulation (SVM) is used to generate the required rotor voltage space vector by currents controllers. Detail description of the IMC modulation technique is provided in [16].…”

Section: Indirect Matrix Convertermentioning

confidence: 99%

Evaluation of Synchronization and MPPT algorithms in a DFIG Wind Turbine Controlled by an Indirect Matrix Converter

Khajeh

Ghazi

Abardeh

et al. 2018

IJPEDS

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<span>Most of generators utilized in wind turbines are the Doubly-Fed Induction Generator (DFIG). Indirect matrix converter (IMC) is a candidate for substituting the traditional back-to-back converter in the future due to advantages gained by elimination of electrolytic capacitor. Starting DFIG wind turbines and synchronizing to the grid is a challenge in practice because of large inrush currents that could damage switches. Synchronizing the DFIG wind turbine controlled by the IMC is presented in this paper. Also, maximum power point tracking algorithm performance of this configuration is examined. A laboratory scale prototype of the proposed configuration is built. Experimental results have confirmed effectiveness of this configuration.</span>

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“…Utilizing matrix converters in DFIG wind turbines is still in research phase. Most of the works have dealt with their normal operation [27][28][29][30]. The control of a DFIG using an indirect matrix converter for dynamic performance evaluation under normal grid condition is presented in [27].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the power quality of WT is improved. The capability of the input converter to generate different virtual dc-link voltage levels is also proposed in [29]. This method reduces both the commutation losses of output converter and common mode voltage.…”

Section: Introductionmentioning

confidence: 99%

Control of DFIG Wind Turbines Based on Indirect Matrix Converters in Short Circuit Mode to Improve the LVRT Capability

Khajeh

Ghazi

2013

Advances in Power Electronics

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Nowadays, the doubly-fed induction generators (DFIGs) based wind turbines (WTs) are the dominant type of WTs. Traditionally, the back-to-back converters are used to excite the rotor circuit of DFIG. In this paper, an indirect matrix converter (IMC) is proposed to control the generator. Compared with back-to-back converters, IMCs have numerous advantages such as higher level of robustness, reliability, and reduced size and weight due to the absence of bulky electrolytic capacitor. According to the recent grid codes wind turbines must have low voltage ride-through (LVRT) capability. In this paper a new crowbar system is proposed so that along with the control system it protects the IMC from large fault currents and supports the grid voltage dips during grid faults. This crowbar system is provided using the existing converter switches to establish a short circuit mode without any extra circuitry. Even in severe fault conditions, the duration of short circuit mode is quite small so the control system will be activated shortly after the fault to inject reactive power as required by new LVRT standards. Therefore, the new LVRT standards are well satisfied without any extra costs. PSIM simulation results confirm the efficiency of the proposed method.

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Control of a Doubly-fed Induction Generator with an Indirect Matrix Converter with changing DC voltage

Cited by 5 publications

References 21 publications

Control of a Doubly Fed Induction Generator via an Indirect Matrix Converter With Changing DC Voltage

Control of a Doubly Fed Induction Generator via an Indirect Matrix Converter With Changing DC Voltage

Evaluation of Synchronization and MPPT algorithms in a DFIG Wind Turbine Controlled by an Indirect Matrix Converter

Control of DFIG Wind Turbines Based on Indirect Matrix Converters in Short Circuit Mode to Improve the LVRT Capability

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