Efficient Modeling of Modular Multilevel HVDC Converters (MMC) on Electromagnetic Transient Simulation Programs

Gnanarathna, U.N.; Gole, Aniruddha M.; Jayasinghe, R.P.

doi:10.1109/tpwrd.2010.2060737

Cited by 681 publications

(340 citation statements)

References 39 publications

Supporting

Mentioning

306

Contrasting

Unclassified

Order By: Relevance

“…1 is simulated in PSCAD/EMTDC environment to verify the proposed control of the DR-HVDC system with parameters listed in Table I. Detailed model is used for the diode rectifier, and equivalent MMC model from PSCAD library containing 256 submodules per arm is used for the onshore converter [18]- [20]. The wind farm model includes the followings: ten 5 MW WTs representing one WT string, an aggregate 150 MW WT (equivalent to 3 WT strings), an aggregate 200 MW WT (equivalent to a WT cluster with 4 strings) and an aggregate 600 MW WT (equivalent to 3 WT clusters).…”

Section: Simulation Resultsmentioning

confidence: 99%

Distributed PLL-Based Control of Offshore Wind Turbines Connected With Diode-Rectifier-Based HVDC Systems

2018

IEEE Trans. Power Delivery

110

135

View full text Add to dashboard Cite

This version is available at https://strathprints.strath.ac.uk/62289/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output.This paper is a post-print of a paper submitted to and accepted for publication in IEEE Transactions on Power Delivery and is subject to Institution of Electrical and Electronic Engineering Copyright. The copy of record is available at IEEE Xplore Digital Library.Abstract-A distributed PLL-based frequency control is proposed in this paper for offshore wind turbine converters connected with diode-rectifier based high-voltage-direct-current (HVDC) systems. The proposed control enables a large number of wind turbines to work autonomously to contribute to the offshore AC frequency and voltage regulation. The proposed control also provides automatic synchronization of the offline wind turbines to the offshore AC grid. Stability of the proposed frequency control is analyzed using root locus method. Moreover, an active dc voltage control of the onshore modular multilevel converter (MMC) is proposed to ride-through onshore AC fault, where the onshore MMC converter quickly increases the dc voltage by adding additional submodules in each phase, in order to rapidly reduce wind farm active power generation so as to achieve quick active power re-balance between the offshore and onshore sides. Thus the overvoltage of the submodule capacitor is alleviated during the onshore fault, reducing the possibility of system disconnection. Simulation results in PSCAD verify the proposed control strategy during start-up, synchronization and under onshore and offshore fault conditions. Index Terms-diode-rectifier based HVDC, distributed PLLbased frequency control, offshore wind power integration, onshore AC fault, synchronization of wind turbine converters I. INTRODUCTION N Europe, onshore wind farms have already been well developed, and more attention has been drawn to offshore sites. Many large offshore wind farms will be developed in the ...

show abstract

Section: Simulation Resultsmentioning

confidence: 99%

Distributed PLL-Based Control of Offshore Wind Turbines Connected With Diode-Rectifier-Based HVDC Systems

2018

IEEE Trans. Power Delivery

110

135

View full text Add to dashboard Cite

show abstract

“…In terms of the MMC modelling, different types of MMC model have been proposed in [23][24][25]. Notably are the Accelerated Model (AM), Detailed Equivalent Model (DEM) and Traditional Detailed Model (TDM).…”

Section: Modellingmentioning

confidence: 99%

Impact of Fault Current Limiter on VSC-HVDC DC Protection

Chang¹,

Cwikowski²,

Pei³

et al. 2016

12th IET International Conference on AC and DC Power Transmission (ACDC 2016)

View full text Add to dashboard Cite

Multi-terminal Voltage-Sourced Converter (VSC) High Voltage Direct Current (HVDC) transmission is expected to play a key role in future power transmission grids. Compared with AC transmission, DC transmission is more vulnerable to faults due to the lower DC side impedances and sensitive power electronics used in the converters. DC protection issues must be solved before any multi-terminal VSC-HVDC grid can be established. In terms of DC protection, apart from using a DC circuit breaker to interrupt and isolate a DC fault, a Fault Current Limiter (FCL) may be employed to limit the fault current. FCLs could potentially form an important part of any future DC protection system. This paper investigates such a FCL. The main contribution of this paper is that, the resistive type superconducting FCL (SCFCL) is modelled in detail to perform DC protection with the ABB hybrid circuit breaker, in a high fidelity four-terminal VSC-HVDC system model. The simulation results show that the SCFCL has great potential to be employed for DC protection.

show abstract

“…R 1 and R 2 in the first SM), as depicted in Fig. 2 (b) [10]. These two resistors are determined according to the state of SM.…”

Section: Arm Modeling For High-level MMC Topologymentioning

confidence: 99%

“…There are several studies [6][7][8][9][10] for the power loss modeling of MMC. The previous work in [7] estimated the power dissipation in MMC with the simple functions derived from losses based on a typical switching waveform.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Power Loss Modeling of Individual IGBT and Advanced Voltage Balancing Scheme for MMC in VSC-HVDC System

Son

Lee

Park³

2014

Journal of Electrical Engineering and Technology

View full text Add to dashboard Cite

-This paper presents the new power dissipation model of individual switching device in a high-level modular multilevel converter (MMC), which can be mostly used in voltage sourced converter (VSC) based high-voltage direct current (HVDC) system and flexible AC transmission system (FACTS). Also, the voltage balancing method based on sorting algorithm is newly proposed to advance the MMC functionalities by effectively adjusting switching variations of the sub-module (SM). The proposed power dissipation model does not fully calculate the average power dissipation for numerous switching devices in an arm module. Instead, it estimates the power dissipation of every switching element based on the inherent operational principle of SM in MMC. In other words, the power dissipation is computed in every single switching event by using the polynomial curve fitting model with minimum computational efforts and high accuracy, which are required to manage the large number of SMs. After estimating the value of power dissipation, the thermal condition of every switching element is considered in the case of external disturbance. Then, the arm modeling for highlevel MMC and its control scheme is implemented with the electromagnetic transient simulation program. Finally, the case study for applying to the MMC based HVDC system is carried out to select the appropriate insulated-gate bipolar transistor (IGBT) module in a steady-state, as well as to estimate the proper thermal condition of every switching element in a transient state.

show abstract

Efficient Modeling of Modular Multilevel HVDC Converters (MMC) on Electromagnetic Transient Simulation Programs

Cited by 681 publications

References 39 publications

Distributed PLL-Based Control of Offshore Wind Turbines Connected With Diode-Rectifier-Based HVDC Systems

Distributed PLL-Based Control of Offshore Wind Turbines Connected With Diode-Rectifier-Based HVDC Systems

Impact of Fault Current Limiter on VSC-HVDC DC Protection

Power Loss Modeling of Individual IGBT and Advanced Voltage Balancing Scheme for MMC in VSC-HVDC System

Contact Info

Product

Resources

About