HVDC Circuit Breakers: A Comprehensive Review

Mohammadi, Fazel; Rouzbehi, Kumars; Hajian, M.; Niayesh, Kaveh; Gharehpetian, Gevork B.; Saad, Hani; Ali, Mohd. Hasan; Sood, Vijay K.

doi:10.1109/tpel.2021.3073895

Cited by 94 publications

(34 citation statements)

References 169 publications

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“…The second form of SSCB uses a CB in conjunction with a freewheeling diode to bypass any reverse voltage impulse, protecting the IGBT against voltage spikes. It also employs the surge arrestor as an absorbing agent for the heat created during the fault, allowing it to be dissipated as rapidly as feasible [50][51][52]. Under normal conditions, current flows from the DC source to the load via the IGBT in the first kind of SSCB; however, when a fault is detected, the semiconductor shuts off.…”

Section: Solid-state Circuit Breakers (Sscb)mentioning

confidence: 99%

Section: Solid-state Circuit Breakers (Sscb)mentioning

confidence: 99%

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Overview and Assessment of HVDC Current Applications and Future Trends

2022

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High voltage direct current (HVDC) technology has begun to gather a high degree of interest in the last few decades, showing a fast evolution of achievable voltage levels, transfer capacities, and transmission lengths. All these changes occurred in a context in which power system applications are highly dependent on HVDC technologies such as energy generation from renewable sources (e.g., energy generated in offshore wind power plants), power exchanges between asynchronous networks, submarine cables, and long-length transmission overhead lines have become more common worldwide. This paper tries to summarize the current state of HVDC technologies, both voltage-source converters and current-source converters, the main components of converter substations, control strategies, key challenges arising from their use, as well as the future prospects and trends of HVDC applications. This paper represents the first step in setting the background information for analyzing the impact of a VSC-HVDC connection on the stability of the Romanian transmission network during steady-state and dynamic operation.

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Section: Solid-state Circuit Breakers (Sscb)mentioning

confidence: 99%

Section: Solid-state Circuit Breakers (Sscb)mentioning

confidence: 99%

Overview and Assessment of HVDC Current Applications and Future Trends

2022

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“…The capacitive behaviour of HVDC cables and their relatively low impedances leads to a significant increase in fault currents. DC circuit breakers (DCCBs) are one of the most effective tools for fast fault isolation [1]. Despite developments in DCCB technology, still they need to large DC reactors to reduce the rate of rising fault currents [2].…”

Section: Introductionmentioning

confidence: 99%

A modified droop control structure for simultaneous power‐sharing and DC voltage oscillations damping in MT‐HVDC grids

Azizi

CheshmehBeigi

Rouzbehi

2022

IET Generation Trans & Dist

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With increasing energy demand, the use of renewable energy resources is increasing. Renewable energy sources require power electronic converters to get integrated into power grids. Multi‐terminal high voltage direct current (MT‐HVDC) systems are a promising solution for their grid integration. Using droop‐based controller strategies in power converter stations of MT‐HVDC grid, in addition, to providing power‐sharing, can support the frequency of the connected AC grids. However, power changes lead to direct voltage deviations, thereby disrupting the stability of the MT‐HVDC system. Here, a new control structure for the droop controller of the voltage source converter (VSC) controller is proposed which is named modified droop controller (M‐Droop). This method, in addition to power‐sharing, uses an appropriate control action to provide the required voltage stability. Here, analytical studies of the modified control strategy are reported. Moreover, through a developed MATLAB Simulink platform, its performance is verified in the events of transients, consisting of fault, variable load, and change in power generation.

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“…The Global Energy Internet Research Institute Ltd. has developed a 200kV/3ms/15kA hybrid DC circuit breaker. However, its practical application suffers from difficulties in reclosing and breaking, and the reverse injection of current into the system affects the transient characteristics and protection of the system [21]- [22]. In [23], DC circuit breakers with MMC topology are investigated in the MMC-HVDC system; However, their performance in a serial hybrid LCC-MMC HVDC system, an ultra-high voltage transmission system, needs further study and verification [24].…”

Section: Introductionmentioning

confidence: 99%

A Power Allocation Strategy for DC Line Fault in Serial Hybrid LCC-MMC HVDC System

Li¹,

Teng²,

Liu³

et al. 2022

IEEE Access

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The serial hybrid line commutated converter-modular multilevel converter (LCC-MMC) high voltage direct current (HVDC) system has structural features that cause the inverter side three MMCs to form a closed-loop after a DC line fault. If the steady-state control strategy of the MMCs is still used during the phase shift, there will be a severe overcurrent problem. In addition, during the power recovery process, the rectifier side and the main converter MMC simultaneously deliver active power to the constant active power converter, resulting in the loss of control of the constant active power converter. Based on this, an MMC active power allocation strategy is designed in this paper. In this strategy, during DC line faults, the constant DC voltage converter is switched to constant active power control, and the other two converters are switched to voltage droop control. During the phase shift, the active powers of the two droop converters are allocated according to the droop coefficients, and the active powers of the MMCs are dynamically and smoothly reduced to solve the uncontrol problem of the two converters during the power recovery process. Finally, a serial hybrid LCC-MMC HVDC system model is built in PSCAD/ETMDC based on engineering design parameters to verify the accuracy and validity of the proposed control strategy. Comprehensive simulations show that the proposed strategy can reasonably allocate the powers of the MMCs in case of DC line fault. Besides, it still shows great adaptability with different power distribution, fault locations, and fault resistances.INDEX TERMS serial hybrid LCC-MMC HVDC system, DC line fault; voltage droop control, power allocation, Cyclic active power

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HVDC Circuit Breakers: A Comprehensive Review

Cited by 94 publications

References 169 publications

Overview and Assessment of HVDC Current Applications and Future Trends

Overview and Assessment of HVDC Current Applications and Future Trends

A modified droop control structure for simultaneous power‐sharing and DC voltage oscillations damping in MT‐HVDC grids

A Power Allocation Strategy for DC Line Fault in Serial Hybrid LCC-MMC HVDC System

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