Comparative Analysis on Small-Signal Stability of Multi-Infeed VSC HVDC System With Different Reactive Power Control Strategies

Grdenić, Goran; Delimar, Marko; Beerten, Jef

doi:10.1109/access.2019.2948290

Cited by 8 publications

(4 citation statements)

References 17 publications

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“…With the advancement of HVDC transmission technology, two or more HVDC systems can be fed into one AC side with the converters located nearby. Due to the diversification of the DC system control and operation, the difficulties of various multi-infeed HVDC systems are required to be investigated [102][103][104][105].…”

Section: Stability Improvement Modelsmentioning

confidence: 99%

Dynamic Modeling of HVDC for Power System Stability Assessment: A Review, Issues, and Recommendations

et al. 2021

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High-voltage direct current (HVDC) has received considerable attention due to several advantageous features such as minimum transmission losses, enhanced stability, and control operation. An appropriate model of HVDC is necessary to assess the operating conditions as well as to analyze the transient and steady-state stabilities integrated with the AC networks. Nevertheless, the construction of an HVDC model is challenging due to the high computational cost, which needs huge ranges of modeling experience. Therefore, advanced dynamic modeling of HVDC is necessary to improve stability with minimum power loss. This paper presents a comprehensive review of the various dynamic modeling of the HVDC transmission system. In line with this matter, an in-depth investigation of various HVDC mathematical models is carried out including average-value modeling (AVM), voltage source converter (VSC), and line-commutated converter (LCC). Moreover, numerous stability assessment models of HVDC are outlined with regard to stability improvement models, current-source system stability, HVDC link stability, and steady-state rotor angle stability. In addition, the various control schemes of LCC-HVDC systems and modular multilevel converter- multi-terminal direct current (MMC-MTDC) are highlighted. This paper also identifies the key issues, the problems of the existing HVDC models as well as providing some selective suggestions for future improvement. All the highlighted insights in this review will hopefully lead to increased efforts toward the enhancement of the modeling for the HVDC system.

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Section: Stability Improvement Modelsmentioning

confidence: 99%

Dynamic Modeling of HVDC for Power System Stability Assessment: A Review, Issues, and Recommendations

et al. 2021

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“…However, this analysis did not consider different reactive power injections and absorption for the reactive power control modes since the change of reactive power operating condition in a VSC-HVDC system may alter the angular separation between generators, hence affecting the large-disturbance angle stability of the system. Four reactive power control strategies of VSC-HVDC are investigated in [12] to compare their impacts on small signal stability. The simulation results of two independent VSC-HVDC converters in a generic system show that AC voltage control in the converter with a lower short-circuit ratio aggravated the stability of the least damped mode compared to reactive power control.…”

Section: Introductionmentioning

confidence: 99%

The Influence of VSC–HVDC Reactive Power Control Mode on AC Power System Stability

Wang¹,

Zhou²,

et al. 2020

Energies

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Voltage source converter-based high-voltage direct current (VSC-HVDC) has the advantage of fast and independent controllability on active and reactive power. This paper focuses on effects of commonly proposed reactive power control modes, constant reactive power control and AC voltage margin control. Based on the mathematical model of single machine infinity equivalent system with embedded VSC-HVDC, the influence of VSC-HVDC with different reactive power control strategies on transient stability and dynamic stability of the AC system is studied. Then case studies were conducted with a realistic model of grid. The dynamic responses of AC/DC systems for different VSC-HVDC reactive power control modes were compared in detail. It is shown that compared to constant reactive power control, AC voltage margin control can provide voltage support to enhance the transient angle stability of an AC system. However, the fluctuant reactive power injected into a weak AC system may adversely affect power system oscillation damping for VSC-HVDC with AC voltage margin control, if the parameters of the controller have not been optimized to suppress the low-frequency oscillation. The results of this paper can provide certain reference for the decision of an appropriate VSC-HVDC reactive power control mode in practice.

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Section: Introductionmentioning

confidence: 99%

“…The small-signal stability under different control modes in multi-infeed VSC-HVDC and hybrid multi-infeed HVDC (H-MIDC), having both LCC and VSC technologies, is investigated in [18], [19]. The impact of reactive power control and AC voltage control in multi-infeed system is investigated in [18]. The results indicate that even though the AC voltage control can provide damping to some system modes, it may significantly reduce the damping of the least damped oscillatory mode.…”

Section: Introductionmentioning

confidence: 99%

Impact of HVDC dynamic modelling on power system small signal stability assessment

Asvapoositkul

Preece

2020

International Journal of Electrical Power & Energy Systems

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Comparative Analysis on Small-Signal Stability of Multi-Infeed VSC HVDC System With Different Reactive Power Control Strategies

Cited by 8 publications

References 17 publications

Dynamic Modeling of HVDC for Power System Stability Assessment: A Review, Issues, and Recommendations

Dynamic Modeling of HVDC for Power System Stability Assessment: A Review, Issues, and Recommendations

The Influence of VSC–HVDC Reactive Power Control Mode on AC Power System Stability

Impact of HVDC dynamic modelling on power system small signal stability assessment

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