Dynamic average modeling of front-end diode rectifier loads considering discontinuous conduction mode and unbalanced operation

Chiniforoosh, Sina; Atighechi, Hamid; Davoudi, Ali; Jatskevich, Juri; Yazdani, Amirnaser; Filizadeh, Shaahin; Saeedifard, M.; Velasco, J.; Sood, Vijay K.; Dinavahi, Venkata

doi:10.1109/pesgm.2012.6345513

Cited by 6 publications

(16 citation statements)

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“…back into time domain. The ripple amplitudes of the measurements were all estimated as MADs of the filtered signals by equation (16). To provide the analytic results, the derived transfer functions (equations (12) to (14)) of torque ripple, rotational speed ripple and angular deflection were applied to the filtered FFT of the measured electrical torque ripple.…”

Section: Measurement Campaign and Data Treatmentmentioning

confidence: 99%

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Mechanical Torque Ripple From a Passive Diode Rectifier in a 12 kW Vertical Axis Wind Turbine

Rossander

Goude

Eriksson

2017

IEEE Trans. Energy Convers.

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PostprintThis is the accepted version of a paper published in IEEE transactions on energy conversion. This paper has been peer-reviewed but does not include the final publisher proof-corrections or journal pagination.Citation for the original published paper (version of record):Rossander, M., Goude, A., Eriksson, S. (2017) Mechanical torque ripple from a passive diode rectifier in a 12 kW vertical axis wind turbine. Abstract-The influence of passive rectification on the mechanical torque of a permanent magnet generator for a directly driven vertical axis wind turbine has been studied. Passive diode rectification introduce electromagnetic torque ripple from the generator. The conversion of electromagnetic torque ripple into mechanical torque ripple and rotational speed ripple has been modelled, analytically evaluated and simulated. The simulations have been compared to measurements on an open site 12 kW prototype. A parameter study with the model illustrates the impact of shaft torsional spring constant, generator rotor inertia, generator inductance and dc-link capacitance. The results show that the shaft and generator rotor can be an effective filter of electromagnetic torque ripple from diode rectification. The measured mechanical torque ripple amplitude on the prototype is less than ±0.9% of nominal turbine torque. The measurements compare well with the simulations.

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Section: Measurement Campaign and Data Treatmentmentioning

confidence: 99%

“…Since frequency domain steady state analysis of diodes are difficult due to their switching behaviour, simulation is preferable [14]. No analytic representation of the diodes is presented here, however, there are fast approximative methods for analysis of systems with diode rectifiers, such as averagevalue modelling [15], [16].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Torque Ripple From a Passive Diode Rectifier in a 12 kW Vertical Axis Wind Turbine

Rossander

Goude

Eriksson

2017

IEEE Trans. Energy Convers.

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“…The applications of averaging methods have been also extended to modeling, analysis, and control of three-phase rectifiers and inverters [49][50][51][52][53][54][55][56][57][58]. A general methodology for deriving state-space equations for PWM dc-dc converters, inverters, rectifiers and cycloconverters has been developed in [49].…”

Section: General Methodology For Modeling Invertersmentioning

confidence: 99%

“…Besides the general methodology, described in this section, an enormous number of studies have been carried out in the field of dynamic modeling and control of rectifiers and inverters [50][51][52][53][54][55][56][57][58]. A systematic approach for the small-signal modeling and control design of three-phase PWM rectifiers has been presented in [50][51].…”

Section: General Methodology For Modeling Invertersmentioning

confidence: 99%

“…A practical significance of these works is accounting the effects of digital control implementation and time-discrete nature of PWM, by adding one sampling period delay at the control inputs, and zero-order hold (ZOH) at the inductor currents' output. In a very recent work, a method for average-value modeling of the conventional three-phase (six-pulse) frontend rectifiers has been proposed in [52]. The system operation and dynamic performance of the developed average models have been demonstrated in discontinuous and continuous modes, as well as under balanced and unbalanced operation.…”

Section: General Methodology For Modeling Invertersmentioning

confidence: 99%

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Dynamic Modeling and Analysis of Single-Stage Boost Inverters under Normal and Abnormal Conditions

Kaviani¹

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Average value modeling of six‐pulse diode rectifier considering unbalance conditions in supply voltage and impedance

Rahnama

Vahedi

Mohammad‐Alikhani

et al. 2019

Int Trans Electr Energ Syst

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Summary Diode rectifiers are widely used in many applications, and therefore, there is a need for an accurate model to study the rectifiers. Because of the complexity and time consuming of the analytical model of rectifiers, the average value modeling has been introduced. This paper proposes a novel average value model (AVM) for the line‐commutated rectifier bridge supplied with an unbalanced power source. The unbalance condition, here, refers to the asymmetry of the three‐phase voltage magnitude and the three‐phase impedance, which is possible due to the occurrence of asymmetry in the sources with winding such as power sources, generators, and transformers. According to the three‐phase input current of the rectifier, one cycle is divided into some intervals, and the differential equation for each interval is provided. Then, utilizing these equations, the average value of the derivative of the load current is derived from which the average value of the load current and voltage can be calculated. The proposed AVM is then verified using simulation and experimental results for the diode rectifier bridge with the load of the brushless synchronous generator field winding. Besides, the model is investigated for different load and supply parameters.

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Dynamic average modeling of front-end diode rectifier loads considering discontinuous conduction mode and unbalanced operation

Cited by 6 publications

References 0 publications

Mechanical Torque Ripple From a Passive Diode Rectifier in a 12 kW Vertical Axis Wind Turbine

Mechanical Torque Ripple From a Passive Diode Rectifier in a 12 kW Vertical Axis Wind Turbine

Dynamic Modeling and Analysis of Single-Stage Boost Inverters under Normal and Abnormal Conditions

Average value modeling of six‐pulse diode rectifier considering unbalance conditions in supply voltage and impedance

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