Analysis on the Interaction of AC/DC Systems Based on Multi-Infeed Q Effective Short Circuit Ratio

Wang, Pengfei; Zhang, Yingmin; Hu, Chen; Li, Xingyuan; Song, Shuai; Bai, Jing

doi:10.1109/appeec.2012.6307296

Cited by 7 publications

(3 citation statements)

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“…Details of different types of MIESCR are explained in References [14][15][16][17]. Researchers tried to improve the MIIF, because the index was made for the evaluation of the interaction between two inverters.…”

Section: Multi-infeed Effective Short Circuit Ratiomentioning

confidence: 99%

HVDC-System-Interaction Assessment through Line-Flow Change-Distribution Factor and Transient-Stability Analysis at Planning Stage

2016

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Many of the recent projects for new transmission line have considered the high-voltage direct current (HVDC) system, owing to the many advantages of the direct current (DC) system. The most noteworthy advantage is that a cable can serve as a substitute for the overhead transmission line in residential areas; therefore, the HVDC system application is increasing, and as the number of DC systems in the power system increases, the interaction assessment regarding the HVDC system gains importance. An index named multi-infeed interaction factor (MIIF) is commonly used to estimate the interaction between power converters; however, the HVDC system is composed of two converters and a transmission line. The MIIF represents the interaction between the rectifiers and inverters, but not for the whole system. In this work, a method to assess the interaction of the whole system was therefore studied. To decide on the location of the new HVDC transmission system at the planning stage, in consideration of the interaction of the existing DC system, the line flow change distribution factor, according to the HVDC-transmission capacity change, was examined. Also, a power system transient -stability analysis was performed with different HVDC system locations, depending on the distribution factor. The simulation results indicate that when the factor is higher, two HVDC systems have a stronger interaction and are less stable in the transient state.

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Section: Multi-infeed Effective Short Circuit Ratiomentioning

confidence: 99%

HVDC-System-Interaction Assessment through Line-Flow Change-Distribution Factor and Transient-Stability Analysis at Planning Stage

2016

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“…A large number of investigations show that MIESCR is an effective index to indicate the voltage support strength at converter stations in multi‐infeed DC systems [21]. Larger MIESCR indicates stronger voltage support at the converter station.…”

Section: Voltage Support Strength Indexmentioning

confidence: 99%

Three macroscopic indices for describing the quality of AC/DC power grid structures

Song

Huang

2016

IET Generation, Transmission & Distribution

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“…But at the moment, most studies about AC/DC hybrid system are more focused on the stability of the multi-infeed HVDC system [5][6][7][8], and ignore the relevant circumstances of multi-send HVDC system. Reference [9] analyzes the operation condition of Ya'an-Jinmen 100 kV UHV line by using the quantitative evaluation index and small signal stability analysis method, and gets the influence to other three DC lines.…”

Section: Introductionmentioning

confidence: 99%

Outward transmission capacity analysis under the background of UHV AC/DC power grid

Yang¹,

Zhang²,

Long³

et al. 2016

Proceedings of the 2016 5th International Conference on Civil, Architectural and Hydraulic Engineering (ICCAHE 2016)

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Considering the stability analysis theory of multi-infeed high voltage direct current (HVDC) system, the transmission capacity analysis method of multi-send ultra high voltage (UHV) AC/DC power grid is studied in this paper. By extending the multi-infeed short circuit ratio index, we can get the multi-send short circuit ratio index (MSSCR), and the stability of the system is analyzed by using BPA simulation platform. Then MSSCR is revised according to the analysis results, and adjust the outward transmission capacity until MSSCR reached set value, which is the outward transmission capacity of the grid.

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Analysis on the Interaction of AC/DC Systems Based on Multi-Infeed Q Effective Short Circuit Ratio

Cited by 7 publications

References 1 publication

HVDC-System-Interaction Assessment through Line-Flow Change-Distribution Factor and Transient-Stability Analysis at Planning Stage

HVDC-System-Interaction Assessment through Line-Flow Change-Distribution Factor and Transient-Stability Analysis at Planning Stage

Three macroscopic indices for describing the quality of AC/DC power grid structures

Outward transmission capacity analysis under the background of UHV AC/DC power grid

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