Hybrid HVDC for Integrating Wind Farms With Special Consideration on Commutation Failure

This paper presents the control and operation of a hybrid HVDC system comprising a wind farm-side voltage-source converter rectifier and a grid-side LCC inverter for integrating wind power. The configuration and operation principle of the hybrid HVDC system are described. Commutation failure in the LCC inverter during an ac network disturbance is considered and its impact on the hybrid system operation is analyzed. An enhanced control strategy for the LCC inverter at the grid side and an alternative modular multilevel converter (MMC) topology using mixed half-bridge and full-bridge modules considered for the rectifier at the wind farm side are proposed. Simulation results using Matlab/Simulink are presented to demonstrate the robust performance during LCC inverter commutation failure to validate the operation and recovery of the hybrid system with the proposed control strategy and MMC configuration.

[1]  R. Torres-Olguin,et al.  Offshore Wind Farm Grid Integration by VSC Technology With LCC-Based HVDC Transmission , 2012, IEEE Transactions on Sustainable Energy.

[2]  Zhe Zhu,et al.  Nanao multi-terminal VSC-HVDC project for integrating large-scale wind generation , 2014, 2014 IEEE PES General Meeting | Conference & Exposition.

[3]  Rong Zeng,et al.  Design and Operation of a Hybrid Modular Multilevel Converter , 2015, IEEE Transactions on Power Electronics.

[4]  Rong Zeng,et al.  DC/DC converters based on hybrid MMC for HVDC grid interconnection , 2015 .

[5]  Lie Xu,et al.  Reduced switching-frequency modulation and circulating current suppression for modular multilevel converters , 2012, PES T&D 2012.

[6]  V.G. Agelidis,et al.  VSC-Based HVDC Power Transmission Systems: An Overview , 2009, IEEE Transactions on Power Electronics.

[7]  Liangzhong Yao,et al.  Grid Integration of Large DFIG-Based Wind Farms Using VSC Transmission , 2007, IEEE Transactions on Power Systems.

[8]  Reza Iravani,et al.  Dynamic performance of a modular multilevel back-to-back HVDC system , 2010, 2011 IEEE Power and Energy Society General Meeting.

[9]  Liangzhong Yao,et al.  DC voltage control and power dispatch of a multi-terminal HVDC system for integrating large offshore wind farms , 2011 .

[10]  Hong Chao.  The System Tests of Yunnan-Guangdong ±800 kV DC Transmission Project , 2010 .

[11]  Zheng Xu,et al.  DC-Side Harmonic Currents Calculation and DC-Loop Resonance Analysis for an LCC–MMC Hybrid HVDC Transmission System , 2015, IEEE Transactions on Power Delivery.

[12]  J. B. Davies,et al.  Commutation failures in HVDC transmission systems , 1996 .

[13]  Jin Yang,et al.  Multiterminal DC Wind Farm Collection Grid Internal Fault Analysis and Protection Design , 2010, IEEE Transactions on Power Delivery.

[14]  Wajid Ahmed,et al.  Improved controls for LCC-VSC hybrid HVDC system , 2013, 2013 International conference on Circuits, Controls and Communications (CCUBE).

[15]  Lie Xu,et al.  Analysis of voltage source converter-based high-voltage direct current under DC line-to-earth fault , 2015 .

[16]  Lie Xu,et al.  Control of an LCC HVDC system for connecting large offshore wind farms with special consideration of grid fault , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[17]  Jinyu Wen,et al.  Offshore Wind Farm Integration and Frequency Support Control Utilizing Hybrid Multiterminal HVDC Transmission , 2014, IEEE Transactions on Industry Applications.

[18]  Liangzhong Yao,et al.  Multi-terminal DC transmission systems for connecting large offshore wind farms , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[19]  Zhao Chengyong,et al.  The control strategy for Hybrid HVDC using voltage margin control and voltage dependent current order limiter control , 2013 .

[20]  Liangzhong Yao,et al.  Large Offshore DFIG-Based Wind Farm With Line-Commutated HVDC Connection to the Main Grid: Engineering Studies , 2008, IEEE Transactions on Energy Conversion.

[21]  Yong Chang,et al.  Hybrid Multi-terminal HVDC System for Large Scale Wind Power , 2006, 2006 IEEE PES Power Systems Conference and Exposition.

[22]  Jun Liang,et al.  Operation and Control of Multiterminal HVDC Transmission for Offshore Wind Farms , 2011, IEEE Transactions on Power Delivery.

[23]  Rong Zeng,et al.  Precharging and DC Fault Ride-Through of Hybrid MMC-Based HVDC Systems , 2015, IEEE Transactions on Power Delivery.

[24]  Liangzhong Yao,et al.  Integrating Wind Farm to the Grid Using Hybrid Multiterminal HVDC Technology , 2011, IEEE Transactions on Industry Applications.

[25]  Chang Nian Zhang,et al.  A hybrid approach of wavelet packet and directional decomposition for image compression , 1999, Engineering Solutions for the Next Millennium. 1999 IEEE Canadian Conference on Electrical and Computer Engineering (Cat. No.99TH8411).

[26]  Lidong Zhang,et al.  A novel method to mitigate commutation failures in HVDC systems , 2002, Proceedings. International Conference on Power System Technology.

[27]  A. Hansen,et al.  Decreasing the commutation failure frequency in HVDC transmission systems , 2000 .

[28]  Seung-Ki Sul,et al.  Control of hybrid HVDC transmission system with LCC and FB-MMC , 2014, 2014 IEEE Energy Conversion Congress and Exposition (ECCE).