Efficient approach to quantify commutation failure immunity levels in multi‐infeed HVDC systems

Xiao, H.; Li, Yinhong; Zhu, Jiang; Duan, Xianzhong

doi:10.1049/iet-gtd.2015.0800

Cited by 60 publications

(36 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, to obtain the CFII, electromagnetic transient simulations are required for calculating the smallest possible fault inductance that does not result in a CF. Reference [13] provided an analytical expression of a CFII based on the simulation result that the CFII is insensitive to the fault time under a three-phase inductive fault condition. However, in contrast to CFIIs for threephase faults, CFIIs for single-phase faults are closely related to the fault time [12].…”

Section: Introductionmentioning

confidence: 99%

Assessment of commutation failure in HVDC systems considering spatial-temporal discreteness of AC system faults

Yang

Cai

et al. 2018

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

This paper presents a novel commutation failure (CF) assessment method considering the influences of voltage magnitude drop, phase shift, and spatial-temporal discreteness of AC system faults. The commutating voltage-time area is employed to analyze the spatial-temporal discreteness of AC system faults causing CF in high-voltage direct current systems, and the influences of fault position and fault time on CF are revealed. Based on this, a novel CF criterion is proposed, further considering the influence of voltage phase shift and the spatial-temporal discreteness. Then this research develops a new CF assessment method, which does not rely on electromagnetic transient simulations. A real case from the China Southern Power Grid is used to verify the practicability of the proposed method by comparing with simulation results obtained using PSCAD/EMTDC.

show abstract

Section: Introductionmentioning

confidence: 99%

Assessment of commutation failure in HVDC systems considering spatial-temporal discreteness of AC system faults

Yang

Cai

et al. 2018

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

show abstract

“…Continuous commutation failures may cause a converter block, which leads to a potential power transfer from DC to AC lines. As a result, AC systems might develop some stability problems [3], [4].…”

Section: Introductionmentioning

confidence: 99%

“…The commutation failure is approximately checked by monitoring the AC bus voltage, extinction angle, etc. [7], [8], which is computed by a quasi-steady state model.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Simulation of HVDC System Steady and Transient Response by an Analytical Method

Zhao

Zeng

et al. 2020

IEEE Access

View full text Add to dashboard Cite

This paper proposes an analytical method for simulation of the steady and transient response of the HVDC system in order to simulate the electromagnetic process of HVDC system in the simulation of hybrid AC/DC system. First, the boundaries of AC and DC systems as well as some assumptions are introduced. Then, the HVDC system is considered as a combination of primary equipment subsystems (PES) and control subsystems (CS). According to the assumptions, the PES can be represented by different homogeneous linear differential equations within different time intervals that are determined by the status of converters. These equations can be solved in analytical method. The CS is expressed by nonlinear differential and algebraic equations and simulated in numerical integration method. The interface parameters of each module are also introduced. The accuracy and efficiency of the proposed model are verified by comparing the simulation results computed by the proposed model with that simulated in PSCAD. INDEX TERMS AC/DC hybrid system simulation, HVDC, electromagnetic transient process, commutation failure.

show abstract

“…Research on LCC HVDC shows that the stability level depends predominantly on the Effective Short Circuit Ratio (ESCR) of the AC grid [14][15][16]. The first impact is seen in the frequent occurrence of commutation failure at the inverter station during any system disturbances leading to power oscillations of the synchronous generator, which can further lead to total system collapse due to the inability of the converter station to recover from the disturbances.…”

mentioning

confidence: 99%

Impact of LCC–HVDC multiterminal on generator rotor angle stability

Oni¹,

Swanson²,

Carpanen³

2020

IJECE

View full text Add to dashboard Cite

<span>Multiterminal High Voltage Direct Current (HVDC) transmission utilizing Line Commutated Converter (LCC-HVDC) technology is on the increase in interconnecting a remote generating station to any urban centre via long distance DC lines. This Multiterminal-HVDC (MTDC) system offers a reduced right of way benefits, reduction in transmission losses, as well as robust power controllability with enhanced stability margin. However, utilizing the MTDC system in an AC network bring about a new area of associated fault analysis as well as the effect on the entire AC system during a transient fault condition. This paper analyses the fault current contribution of an MTDC system during transient fault to the rotor angle of a synchronous generator. The results show a high rotor angle swing during a transient fault and the effectiveness of fast power system stabilizer connected to the generator automatic voltage regulator in damping the system oscillations. The MTDC link improved the system performance by providing an alternative path of power transfer and quick system recovery during transient fault thus increasing the rate at which the system oscillations were damped out. This shows great improvement compared to when power was being transmitted via AC lines.</span>

show abstract

Efficient approach to quantify commutation failure immunity levels in multi‐infeed HVDC systems

Cited by 60 publications

References 15 publications

Assessment of commutation failure in HVDC systems considering spatial-temporal discreteness of AC system faults

Assessment of commutation failure in HVDC systems considering spatial-temporal discreteness of AC system faults

Simulation of HVDC System Steady and Transient Response by an Analytical Method

Impact of LCC–HVDC multiterminal on generator rotor angle stability

Contact Info

Product

Resources

About