Analysis of Innovative HVDC Control

Povh, D.; Thepparat, P.; Westermann, Dirk

doi:10.1109/ptc.2009.5281801

Cited by 16 publications

(6 citation statements)

References 1 publication

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“…For control of HVDC systems, they are briefly categorised as the following types: voltage margin control [57–60], AC voltage control [5, 57, 61], current margin control [57, 62–65], coordinated current control [57, 66, 67]. …”

Section: Vulnerabilities Of Vsc‐hvdcmentioning

confidence: 99%

HVDC transmission for access to off‐shore renewable energy: a review of technology and fault detection techniques

Mitra

Chowdhury

Manjrekar

2018

IET Renewable Power Generation

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The ever-increasing demand for electric power has partially been met with access to offshore renewable energy, such as wind and tidal energy. With the development in power electronics, high-voltage direct current (HVDC) transmission is taking over as the primary choice for connecting offshore generation to onshore grids. Voltage source converter (VSC)-based HVDC is set to become the backbone of the multi-terminal DC grids replacing the conventional line commutated converter networks. VSC-HVDC networks offer the flexibility for HVDC grids to be connected as conventional AC grids in a meshed network. Advancement of technology has led to the development of the modular multilevel converter which has higher efficiency compared to the two-level VSC configurations. They are gradually becoming a popular choice. Although VSC-based grids offer a varied range of advantages, it is highly vulnerable to DC faults. Many designs of breakers have been patented over the years and various means have been proposed for their control. This study aims to review the available designs of HVDC terminals, the available protection devices and the protection and control methods for HVDC breakers. By comparing the state-of-the-art technologies that are currently available, this study aims to address the research issues and the additional research and development work that needs to be done.

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Section: Vulnerabilities Of Vsc‐hvdcmentioning

confidence: 99%

HVDC transmission for access to off‐shore renewable energy: a review of technology and fault detection techniques

Mitra

Chowdhury

Manjrekar

2018

IET Renewable Power Generation

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“…The current margin must also be considered to avoid the mode chatter where the rectifier and the inverter continuously shift the current control back and forth. Both the mode shift and the mode chatter bring about instability [4]. In steady-state condition the rectifier and the inverter operate in the CC and VC mode respectively.…”

Section: Control Movement Of Mccmmentioning

confidence: 99%

“…6. The rectifier directly controls the DC power and the inverter performs the equivalent resistance control [4], [5]. It can be seen that the rectifier has no hierarchical power control as in the MCCM which causes the slow dynamic of the power control.…”

Section: Control Movement Of Mccmmentioning

confidence: 99%

Further development of HVDC control

Povh¹,

Thepparat

Westermann

2011

2011 IEEE Trondheim PowerTech

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The principal function of the HVDC control is to control the power flow between the terminals. Moreover, it has to stabilize fast the connected AC systems which can suffer from even small disturbances. The paper presents a new HVDC control concept which effectively copes with the disturbances particularly in weak systems. The studies performed by PSCAD/EMTDC use the CIGRE benchmark HVDC and backto-back HVDC scheme to confirm the advantages of the new control concept compared to the conventional one.The studies show that the operating point does not return directly to the pre-disturbance operating point when the conventional control concept is applied, however, the direct movement can be observed when the new control is used. Moreover, the studies of the fixed capacitor (FC) and the fixed reactor (FR) switching in a back-to-back HVDC scheme show the new control is more effective in damping voltage oscillations compared to the conventional one.

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“…Nevertheless, the renewable energy technologies introduce new challenges to the power transmission system [1][2][3]. The main advantages of HVDC transmission system attribute to the long distance bulk power delivery with fewer losses, as well as the interconnection of asynchronous networks [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, control scheme also plays a significant role in the VSC-HVDC system as better control strategies not only improve the control speed but also reduce the power losses [13][14][15]. Consequently, a effective control design for the VSC-HVDC system greatly improves system performance and reliability [4,15].…”

Section: Introductionmentioning

confidence: 99%

Design and Comparison of Feasible Control Systems for VSC-HVDC Transmission System

Shen

Wang

et al. 2014

2014 2nd International Conference on Artificial Intelligence, Modelling and Simulation

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This Paper presents the modeling and control of two-terminal Voltage Source Converter Based High Voltage Direct Current (VSC-HVDC) transmission system which are achieved using the software of PSCAD/EMTDC. There are two control designs for VSC-HVDC system in this project: 1. Phase and magnitude control design; 2. Control design under d-q frame. The VSC-HVDC system is operated successfully by using these two control methods respectively. Finally, this paper illustrates the analysis of steady state tests and dynamic load tests of VSC-HVDC system, as well as the comparison of the two control methods.

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Analysis of Innovative HVDC Control

Cited by 16 publications

References 1 publication

HVDC transmission for access to off‐shore renewable energy: a review of technology and fault detection techniques

HVDC transmission for access to off‐shore renewable energy: a review of technology and fault detection techniques

Further development of HVDC control

Design and Comparison of Feasible Control Systems for VSC-HVDC Transmission System

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