A Phase Selection Method for Wind Power Integration System Using Phase Voltage Waveform Correlation

Song, Guobing; Wang, Chenqing; Wang, Ting; Kheshti, Mostafa; Kang, Xiaoning

doi:10.1109/pesgm.2018.8586647

Cited by 10 publications

(8 citation statements)

References 0 publications

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“…The methods in the first category [78][79][80][81][82][83][84][85][86][87][88][89][90][91] have not considered the unconventional response of inverters in the sequence domain on which most of the classical protection methods have been founded. For instance, Zarei and Parniani [78] proposed a method based on the negative-sequence components to detect and polarise faults.…”

Section: Modified Classical Techniquesmentioning

confidence: 99%

Trends in the protection of inverter‐based microgrids

Mahamedi

Fletcher

2019

IET Generation, Transmission & Distribution

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Section: Modified Classical Techniquesmentioning

confidence: 99%

Trends in the protection of inverter‐based microgrids

Mahamedi

Fletcher

2019

IET Generation, Transmission & Distribution

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“…Correlation technique is commonly used in the digital signal process to calculate the correlation coefficient (CC) of two discrete time series. The CC which has been normalised is defined as follows [19]:

ρ_{x y} = \frac{\sum_{n = 0}^{+ normal∞} x (n) \cdot y false(n false)}{{()(, \sum_{n = 0}^{+ normal∞} x^{2} (n) \sum_{n = 0}^{+ normal∞} y^{2} (n))}^{1 / 2}}

where

ρ_{x y}

is the CC of two discrete signal

x false(n false)

and

y false(n false)

. By the calculation of CC,

ρ_{x y}

can be obtained in the range between −1 and 1.…”

Section: Settings For Bocrsmentioning

confidence: 99%

Overcurrent protection scheme for collector lines in wind farm based on fault component current correlation analysis and multi‐agent system

Zheng

Zhao

Zhu

2019

IET Renewable Power Generation

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Collector line relay failures of large-scale grid-connected wind farms have not received much attention so far. In this study, the adaptability of conventional overcurrent setting method is analysed when used in doubly fed induction generatorbased wind farms, revealing the coordination difficulties between collector line relay and fuse protection of wind turbine (WT) branch as well as the potential maloperation causes of backup overcurrent relays (BOCRs). Then, a novel three-stage setting method of overcurrent relays is proposed. In view of time-bound instantaneous overcurrent relays, a time delay setting approach is put forward considering the time-current characteristic of fuses. Based on the multi-agent system, which is both flexible and effective, comprehensive criteria containing fault component current correlation analysis and differential current criterion are applied to BOCRs. The proposed scheme is validated by the simulation of 46-WT wind farm on DIgSILENT/Powerfactory platform. Simulation results show that the relay is able to trip within 0.32 s and the BOCRs perform well when confronting single fault or even multiple faults.

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“…To verify the adaptability analysis and the improved schemes described above, PMSG and DFIG wind power integration system simulation models were built using the power‐system‐computer‐aided‐design (PSCAD) package by referring to [27], as depicted in Fig. 2.…”

Section: Simulation and Verificationmentioning

confidence: 99%