Optimal placement of dynamic reactive power compensation devices for improving immunity to commutation failure in multi-infeed HVDC systems

Tang, Min; Ma, Lei; Zhang, Bing; Wu, Cheng; Wang, Liang; Li, Echang; Chu, Xiaodong

doi:10.1109/icsai.2017.8248298

Cited by 7 publications

(2 citation statements)

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“…A large amount of computational electromagnetic simulations is performed in [34,35] to analyze the coupling effect between VSC and LCC, and the commutation failure mechanism of the LCC-HVDC system. The mathematical approach for CF immunity level assessment is also presented in [36][37][38][39][40]. Some primary bibliographic references have been placed from a historical perspective.…”

Section: Introductionmentioning

confidence: 99%

An Analysis on the VSC-HVDC Contribution for the Static Voltage Stability Margin and Effective Short Circuit Ratio Enhancement in Hybrid Multi-Infeed HVDC Systems

et al. 2023

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Over the years, high voltage transmission of large energy blocks over long distances has widely developed from the Line Commutated Converter (LCC) technology. However, the continuous expansion of the AC network and the increase in renewable energy penetration leads to the weakening of Electric Power Systems (EPS), causing operational problems for the LCC-HVDC. This paper evaluates the degree of contribution of the VSC-HVDC on the LCC-HVDC dynamic performance when the infeed is in a hybrid multi-infeed HVDC system. Through a steady-state mathematical framework, the new concept of Hybrid Power Voltage Interaction Factor (hPVIF) is proposed to assess the transient stability improvement of LCC. Additionally, this article introduces two key contributions from hPVIF: the complementary Improved Commutation Failure Immunity Index (iCFII), as a measure of the effective short circuit enhancement, as well as the apparent line length, which emulates the line lengths adjusting the power dispatch in the VSC-HVDC. PSCAD/EMTDCTM time-domain dynamic simulations are performed to assess the indexes, and the Matlab® software will be used to assist in mathematical operations.

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Section: Introductionmentioning

confidence: 99%

An Analysis on the VSC-HVDC Contribution for the Static Voltage Stability Margin and Effective Short Circuit Ratio Enhancement in Hybrid Multi-Infeed HVDC Systems

et al. 2023

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“…CF increases the direct current, resulting in converter transformer DC bias and inverter system over-voltage. An emergency controller based on a quick CF detection method can effectively reduce the duration of CF and promote extinguishing angle recovery, which means better economy and faster voltage recovery [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Novel Detection Method for Consecutive DC Commutation Failure Based on Daubechies Wavelet with 2nd-Order Vanishing Moments

et al. 2018

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Accurate detection and effective control strategy of commutation failure (CF) of high voltage direct current (HVDC) are of great significance for keeping the safe and stable operations of the hybrid power grid. At first, a novel detection method for consecutive CF is proposed. Concretely, the 2nd and higher orders' derivative values of direct current are summarized as the core to judge CF by analyzing the physical characteristics of the direct current waveform of the converter station in CF. Then, the Daubechies wavelet coefficient that can represent the 2nd and higher order derivative values of direct current is derived. Once the wavelet coefficients of the sampling points are detected to exceed the threshold, the occurrence of CF is confirmed. Furthermore, by instantly increasing advanced firing angle β in the inverter side, an additional emergency control strategy to prevent subsequent CF is proposed. Eventually, with simulations of the benchmark model, the effectiveness and superiorities of the proposed detection method and additional control strategy in accuracy and rapidity are verified.

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Numerical Methods of Electric Power Flow in Interconnected Systems

Găiceanu

Solcanu

Gaiceanu

et al. 2021

Numerical Methods for Energy Applications

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Optimal placement of dynamic reactive power compensation devices for improving immunity to commutation failure in multi-infeed HVDC systems

Cited by 7 publications

References 10 publications

An Analysis on the VSC-HVDC Contribution for the Static Voltage Stability Margin and Effective Short Circuit Ratio Enhancement in Hybrid Multi-Infeed HVDC Systems

An Analysis on the VSC-HVDC Contribution for the Static Voltage Stability Margin and Effective Short Circuit Ratio Enhancement in Hybrid Multi-Infeed HVDC Systems

Novel Detection Method for Consecutive DC Commutation Failure Based on Daubechies Wavelet with 2nd-Order Vanishing Moments

Numerical Methods of Electric Power Flow in Interconnected Systems

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