Generalized Parametric Average-Value Model of Line-Commutated Rectifiers Considering AC Harmonics With Variable Frequency Operation

Ebrahimi, Seyyedmilad; Amiri, Navid; Atighechi, Hamid; Huang, Yingwei; Wang, Liwei; Jatskevich, Juri

doi:10.1109/tec.2017.2752129

Cited by 27 publications

(10 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where λ 11 and λ 12 are the eigenvalues for interval T 2 (when phases A and B are commutating) obtained by the diagonal matrix in (14) as represented in (16); and M abdc is defined as (17).…”

Section: Circuit Formulationmentioning

confidence: 99%

“…In three‐phase systems, supply voltages can be unbalanced for several reasons . Therefore, analysis and investigation of the unbalanced supply condition are very important issues . Some references have investigated supply unbalances effect on AC‐DC converters.…”

Section: Introductionmentioning

confidence: 99%

“…In Rashid and Maswood, a fully controlled rectifier is analyzed, and the performance of the converter is studied under both balanced and unbalanced power supply situations. Ebrahimi et al propose an analytical model for the six‐pulse diode rectifier bridge when connected to an unbalance three‐phase supply. The performance characteristics of line‐commutated converters for the unbalanced operating conditions are analyzed in Wasynczuk .…”

Section: Introductionmentioning

confidence: 99%

“…16 Therefore, analysis and investigation of the unbalanced supply condition are very important issues. 17 Some references have investigated supply unbalances effect on AC-DC converters. In Rashid and Maswood, 16 a fully controlled rectifier is analyzed, and the performance of the converter is studied under both balanced and unbalanced power supply situations.…”

mentioning

confidence: 99%

See 3 more Smart Citations

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

View full text Add to dashboard Cite

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.

show abstract

Section: Circuit Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

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

View full text Add to dashboard Cite

show abstract

“…The PAVM has been extended in various ways. For instance, the concept was explored in the modeling of line-commutated/thyristor-controlled rectifiers in [1], [28], [31], resulting in parametric relations that are functions of multiple variables. The fundamental approach of PAVMs is the same: the PAVM is based on establishing the rectifier ac and dc variable relationships by averaging the results of detailed simulations.…”

Section: Introductionmentioning

confidence: 99%

Saliency-Sensitive Parametric Average-Value Modeling of Machine-Rectifier Systems--Part I: Modeling and Simulation

Ojo¹

2022

Preprint

View full text Add to dashboard Cite

show abstract

DC fault analysis of solid‐state transformer using circuit equivalent

Kamble,

Chaturvedi,

Borghate

et al. 2024

Circuit Theory & Apps

View full text Add to dashboard Cite

The use of power converters in modern power systems is making the system more active. To enhance the future power grid's reliability, efficiency, interactivity, and security, digital controllers and power electronic circuits are being employed. One critical component of the power system is the 50‐Hz transformer, which is currently robust. However, there is growing interest in solid‐state transformers (SSTs) or power electronic transformers (PETs) as potential alternatives to conventional transformers. These alternatives are particularly relevant for the future grid, which will have a high penetration of renewable energy sources, electric vehicles, and nonlinear loads. To analyze the impact of faults in the power network, it is necessary to establish an accurate circuit model for SSTs, which has not been adequately addressed in the existing literature. This research paper proposes an averaged representation of SSTs and compares the results of switched and averaged models under varying load conditions for the designed SST. Additionally, an equivalent circuit model is developed for DC fault analysis using transformation techniques and a transformer analogy to shift parameters to the DC fault location. The proposed circuit equivalent model is compared with the switched model, offering accurate and efficient results for a pole‐to‐pole and pole‐to‐ground DC fault.

show abstract

Generalized Parametric Average-Value Model of Line-Commutated Rectifiers Considering AC Harmonics With Variable Frequency Operation

Cited by 27 publications

References 31 publications

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

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

Saliency-Sensitive Parametric Average-Value Modeling of Machine-Rectifier Systems--Part I: Modeling and Simulation

DC fault analysis of solid‐state transformer using circuit equivalent

Contact Info

Product

Resources

About