A Large-Power Voltage Source Converter for FACTS Applications Combining Three-Level Neutral-Point-Clamped Power Electronic Building Blocks

2013 ◽  
Vol 60 (11) ◽  
pp. 4759-4772 ◽  
Author(s):  
Javier Chivite-Zabalza ◽  
Miguel Angel Rodriguez Vidal ◽  
Pedro Izurza-Moreno ◽  
Gorka Calvo ◽  
Danel Madariaga
Keyword(s):  
Building Blocks ◽  
Neutral Point ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Power Electronic ◽  
Large Power

scholarly journals Analysis of Three Phase 3-Level NPC Voltage Source Converter for AC-DC Conversion

2020 ◽  
Vol 06 (09) ◽  
pp. 144-148
Author(s):  
A Divya Teja and Dr. N Sambasiva Rao
Keyword(s):  
Power Quality ◽  
Power Flow ◽  
Reactive Power ◽  
Neutral Point ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Phase 3 ◽  
Control Techniques ◽  
Point Potential ◽  
Three Phase

The use of power electronic converters influences the generation of harmonics and reactive power flow in power system. Therefore, three-phase multilevel improved power quality AC-DC converters are gaining lot of popularity in power conversion applications. This work deals with critical problem of multilevel structure i.e neutral point potential (NPP) variation. In this paper, a simplified current controlled scheme is presented to ensure unity power factor operation. Neutral point potential (NPP) of three-phase, 3-level NPC AC-DC converter is controlled by modifying control signal in the controller using NPP regulator. An auxiliary circuit is being presented in this paper as an alternative option for controlling the neutral point potential of the converter. Comparison has been carried out between these control techniques in terms of power quality. A complete mathematical model is presented for better understanding of both techniques used for NPP control. The presented control techniques has been verified through simulation investigations and validated

scholarly journals Mathematical Relationships of Linearized Modeling Methods of AC Power Electronic Systems

2021 ◽  
Author(s):  
Yicheng Liao ◽  
xiongfei wang
Keyword(s):  
Frequency Domain ◽  
Reference Frames ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Electronic Systems ◽  
Power Electronic ◽  
Modeling Methods ◽  
Ac Power ◽  
Dynamic Phasor ◽  
Mathematical Relationships

The harmonic state-space, the dynamic phasor, and the generalized <i>dq</i> modeling are three methods developed for linearization of ac power electronic systems. This paper reveals explicitly mathematical relationships between the three modeling methods in both time and frequency domain. Representations of linearized models in different reference frames and from time domain to frequency domain, as well as their transformations are elaborated step by step. Case studies on a three-phase voltage-source converter that is connected to an unbalanced grid verify the theoretical findings.<br>

scholarly journals Mathematical Relationships of Linearized Modeling Methods of AC Power Electronic Systems

2021 ◽  
Author(s):  
Yicheng Liao ◽  
xiongfei wang
Keyword(s):  
Frequency Domain ◽  
Reference Frames ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Electronic Systems ◽  
Power Electronic ◽  
Modeling Methods ◽  
Ac Power ◽  
Dynamic Phasor ◽  
Mathematical Relationships

The harmonic state-space, the dynamic phasor, and the generalized <i>dq</i> modeling are three methods developed for linearization of ac power electronic systems. This paper reveals explicitly mathematical relationships between the three modeling methods in both time and frequency domain. Representations of linearized models in different reference frames and from time domain to frequency domain, as well as their transformations are elaborated step by step. Case studies on a three-phase voltage-source converter that is connected to an unbalanced grid verify the theoretical findings.<br>

scholarly journals Mathematical Relationships of Linearized Modeling Methods of AC Power Electronic Systems

2021 ◽  
Author(s):  
Yicheng Liao ◽  
xiongfei wang
Keyword(s):  
Frequency Domain ◽  
Reference Frames ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Electronic Systems ◽  
Power Electronic ◽  
Modeling Methods ◽  
Ac Power ◽  
Dynamic Phasor ◽  
Mathematical Relationships

The harmonic state-space, the dynamic phasor, and the generalized <i>dq</i> modeling are three methods developed for linearization of ac power electronic systems. This paper reveals explicitly mathematical relationships between the three modeling methods in both time and frequency domain. Representations of linearized models in different reference frames and from time domain to frequency domain, as well as their transformations are elaborated step by step. Case studies on a three-phase voltage-source converter that is connected to an unbalanced grid verify the theoretical findings.<br>

Sign in / Sign up

Export Citation Format

Share Document