Evaluation of Average Models for Nine-phase Diode Rectifiers with Improved AC and DC Dynamics

Zhu, Huiyu; Burgos, Rolando; Lacaux, F.; Uan-Zo-li, A.; Lindner, Douglas K.; Wang, F.; Boroyevich, Dushan

doi:10.1109/apec.2006.1620711

Cited by 14 publications

(4 citation statements)

References 15 publications

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“…The complete derivation of AAVM is algebraically intensive and already covered in several publications [13]- [18]. This paper goal is to focus on modeling of small-signal dq admittances, thus the equivalent AAVM equations for a twelve-pulse diode rectifier are only stated here.…”

Section: A Analytical Averaged Value Modelmentioning

confidence: 99%

Analysis of nonlinear sideband effects in small-signal input dq admittance of twelve-pulse diode rectifiers

Jaksic

Shen

Cvetkovic

et al. 2013

2013 IEEE Energy Conversion Congress and Exposition

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This paper focuses on the modeling of small-signal input dq admittance of twelve-pulse diode rectifiers. It provides a comprehensive comparison of small-signal dq admittances between well-known averaged value model (AVM), switching simulation model and experimental measurements of a hardware set-up. Analytical AVM (AAVM) is used in the analysis as it has been commonly used to model diode rectifiers. In order to predict small-signal dq admittance accurately, AAVM had to be modified. The modification describes injection properties in a more natural way by considering a d-channel perturbation as magnitude modulation and by considering a q-channel perturbation as phase modulation. Analytical expressions for dq admittance of AAVM of twelve-pulse diode rectifier feeding a resistive load are derived and presented in the paper. Furthermore, it has been found that sideband admittances around multiples of switching frequency exist in the small-signal response due to the nonlinear behavior of the rectifier. The new phenomenon is analyzed theoretically, characterized in simulations with the extraction of small-signal response from the switching simulation model and captured experimentally by the hardware measurements.

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Section: A Analytical Averaged Value Modelmentioning

confidence: 99%

Analysis of nonlinear sideband effects in small-signal input dq admittance of twelve-pulse diode rectifiers

Jaksic

Shen

Cvetkovic

et al. 2013

2013 IEEE Energy Conversion Congress and Exposition

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“…AVM methodologies can be generally classified into two types: analytical and parametric. For the analytical approach, the system state variables such as voltages or currents and their relationships are explicitly defined in the form of algebraic equations; thus, the averaged representation of fast system state variations can then be derived analytically [29, 30, 39, 43–49]. The general principles of the analytical modelling strategy will be briefly reviewed here.…”

Section: Average Modellingmentioning

confidence: 99%

Modelling of shipboard medium‐voltage direct current system for system level dynamic analysis

Shi¹,

Amgai²,

Abdelwahed³

2015

IET Electrical Systems in Transportation

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“…Ebrahimi et al are similar and both need the AC current for the input of the model, and they propose a parametric average modeling. Parametric modeling is static by definition, and any modification needs a new set of lookup tables, which is not desirable . Besides that, they have not discussed the asymmetry in impedances of the supply.…”

Section: Introductionmentioning

confidence: 99%

“…Parametric modeling is static by definition, and any modification needs a new set of lookup tables, which is not desirable. 20 Besides that, they have not discussed the asymmetry in impedances of the supply.…”

mentioning

confidence: 99%

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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Evaluation of Average Models for Nine-phase Diode Rectifiers with Improved AC and DC Dynamics

Cited by 14 publications

References 15 publications

Analysis of nonlinear sideband effects in small-signal input dq admittance of twelve-pulse diode rectifiers

Analysis of nonlinear sideband effects in small-signal input dq admittance of twelve-pulse diode rectifiers

Modelling of shipboard medium‐voltage direct current system for system level dynamic analysis

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

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