Multiterminal HVDC systems in urban areas of large cities

Jiang, Hongbo; Ekström, Å.

doi:10.1109/61.714496

Cited by 120 publications

(4 citation statements)

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“…A simple way to establish a MTDC system can be based on the configuration of an existing AC transmission system [20]. This paper addresses design issues pertaining to local thermal power plants with interconnecting wind generation zones based on an existing AC grid.…”

Section: Hybrid Mtdc Configurationmentioning

confidence: 99%

Three-terminal Hybrid HVDC Transmissions Control Strategies for Bundled Wind-thermal Power Plants

Wu¹,

Wang²,

Wang³

et al. 2016

TOEEJ

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This paper evaluates application feasibility of a Hybrid Multi-terminal HVDC system and wind-thermal-bundled plants simulated in DIgSLIENT PowerFactory environment. The proposed hybrid MTDC system consists of two line-communicated converters (LCC), which are connected to both wind farms and thermal power plants, and one voltage source converter (VSC) at the grid side. Control strategies for each converter are designed to handle this system under different disturbance conditions. Simulation results show that the wind power fluctuation can be compensated by the thermal-generated power. Results demonstrate the effectiveness of the proposed control strategies of the hybrid MTDC system compared to a conventional MTDC system. The proposed scheme combines advantages of both LCC and VSC HVDC systems and provides a new way to transmit wind power over long distances to the main grid.

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Section: Hybrid Mtdc Configurationmentioning

confidence: 99%

Three-terminal Hybrid HVDC Transmissions Control Strategies for Bundled Wind-thermal Power Plants

Wu¹,

Wang²,

Wang³

et al. 2016

TOEEJ

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“…Regarding AC sub-sea grids, for example, the main advantage of MTDC is the lack of charging current to supply reactive power, which limits the feasible length of uncompensated undersea AC cables, and over large distances DC systems have lower overall losses as lower line losses win over the converter losses. The cost break even distance for AC and DC transmission lines is between 400 and 700 km for overhead lines [4][5][6] and only 25-80 km for cables [7][8][9], although a detailed comparison is required for every project such as that discussed in [10].…”

Section: Introductionmentioning

confidence: 99%

Design of protection schemes for multi-terminal HVDC systems

Blond

Bertho

Coury

et al. 2016

Renewable and Sustainable Energy Reviews

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“…On the other hand, HVDC requires only a pair of lines and has less loss of power. In addition, in the case of HVAC, a connection between power grids with different frequencies is not possible, while an HVDC link makes this possible [5][6][7]. Thanks to these merits, HVDC technology has been spotlighted in the field of high-voltage transmission, and research has been actively conducted on such aspects as system analysis, power conversion technology, and topology [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…and Equations(7) to(10). The output voltages of individual SMs and the output voltage of the SM valve expressed as the sum of the foregoing output voltages are created.…”

mentioning

confidence: 99%

Development of Real-Time Implementation of a Wind Power Generation System with Modular Multilevel Converters for Hardware in the Loop Simulation Using MATLAB/Simulink

Dong-cheol

Lee

2020

Electronics

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In this study, we propose a wind power generation system model for operating modular multilevel converter (MMC) in a hardware-in-the-loop simulation (HILS) application. The application of the MMC is a system that connects wind power to a grid through high-voltage direct current (HVDC) in the form of back-to-back connected MMCs, whereas a HILS is a system used to test or develop hardware or a software algorithm with real time. A real-time operation model of the MMC is required to conduct a HILS experiment. Although some studies have introduced the HILS model of MMCs for grid connection using PSCAD/EMTDC, it is difficult to find a study in the literature on the model using Matlab/Simulink, which is widely used for power electronic simulation. Hence, in this paper, we propose a real-time implementation model employing a detailed equivalent model (DEM) using MATLAB/Simulink. The equivalent model of both wind power generation system and MMC are presented in this paper. In addition, we describe how to implement components such as a variable resistor that is not provided in the Simulink’s library. The feasibility of the proposed model is demonstrated with real-time operation of a wind power generation system.

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Multiterminal HVDC systems in urban areas of large cities

Cited by 120 publications

References 0 publications

Three-terminal Hybrid HVDC Transmissions Control Strategies for Bundled Wind-thermal Power Plants

Three-terminal Hybrid HVDC Transmissions Control Strategies for Bundled Wind-thermal Power Plants

Design of protection schemes for multi-terminal HVDC systems

Development of Real-Time Implementation of a Wind Power Generation System with Modular Multilevel Converters for Hardware in the Loop Simulation Using MATLAB/Simulink

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