Application of wide area measurement systems to islanding detection of bulk power systems

Lin, Zhenzhi; Xia, Tao; Ye, Yanzhu; Zhang, Ye; Chen, Lang; Li, Fangxing; Tomsovic, Kevin; Bilke, Terry; Wen, Fushuan

doi:10.1109/tpwrs.2013.2250531

Cited by 86 publications

(50 citation statements)

References 20 publications

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“…A new unified synchrophasor-based controlled separation scheme, which is strategically implemented in three time stages (i.e., offline analysis stage, online monitoring stage and real-time control stage) is proposed, and the synchrophasors are employed to study ''where'' and ''when'' to island [20]. In [21], two islanding detection methods based on bus voltage phase angles and frequencies measured by a frequency monitoring network (FNET) is presented and applied to the North American power grid.…”

Section: Introductionmentioning

confidence: 99%

Controlled islanding schemes for interconnected power systems based on coherent generator group identification and wide-area measurements

Lin

Wen

Zhao

et al. 2016

J. Mod. Power Syst. Clean Energy

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A reasonable islanding strategy of a power system is the final resort for preventing a cascading failure and/or a large-area blackout from occurrence. In recent years, the applications of wide area measurement systems (WAMS) in emergency control of power systems are increasing. Therefore, a new WAMS-based controlled islanding scheme for interconnected power systems is proposed. First, four similarity indexes associated with the trajectories of generators are defined, and the weights of these four indexes are determined by using the well-developed entropy theory. Then, a coherency identification algorithm based on hierarchical clustering is presented to determine the coherent groups of generators.Secondly, an optimization model for determining controlled islanding schemes based on the coherent groups of generators is developed to seek the optimal cutset. Finally, a 16-generator 68-bus power system and a reduced WECC 29-unit 179-bus power system are employed to demonstrate the proposed WAMS-based controlled islanding schemes, and comparisons with existing slow coherency based controlled islanding strategies are also carried out.

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Section: Introductionmentioning

confidence: 99%

Controlled islanding schemes for interconnected power systems based on coherent generator group identification and wide-area measurements

Lin

Wen

Zhao

et al. 2016

J. Mod. Power Syst. Clean Energy

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“…As a consequence, a vast amount of GPS-based timestamped data is being collected 10 to 60 times per second. The potential for real-time tracking of system dynamics afforded by synchronized phasor measurements [6], together with advanced communication and data analysis techniques, offers a novel opportunity to improve wide area protection and islanding detection performance for the evolving power grid.…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, the frequency based method suffers from a non-detection zone, making it ill-suited for islanding detection when the frequency difference between the islanding site and the other sites is small. The phase angle, as the decisive indicator of a phasor, is a vital variable for determining the state and operation of a power system [6] and may provide an alternative and complementary solution to a frequency-based approach [7]. In contrast to the frequency variable, which is a universal system parameter and exhibits Gaussian and linear characteristics, phase angle variables exhibit significant localized, nonlinear and time-varying characteristics [4], [7].…”

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confidence: 99%

“…When a system is islanded, the phase angle of the islanded system drifts away from the main power system. The phase angle difference approach between two different locations for islanding detection has been proved effective in the literature [6], [25], [26], [27]. However, issues may arise with the existing approach due to its critical dependence on the reference phase angle, as well as a fixed pre-set threshold.…”

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confidence: 99%

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Wide area phase angle measurements for islanding detection — An adaptive nonlinear approach

Liu

Kennedy

Laverty

et al. 2017

2017 IEEE Power &Amp; Energy Society General Meeting

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“…One is the measurement from devices such as phasor measurement units (PMUs) [8] and digital fault recorders from high voltage levels, and frequency disturbance recorder (FDR) [9,10] and PMU Lights [11] from low voltage levels. The measured frequency reveals the actual dynamic behaviour of power systems.…”

Section: Introductionmentioning

confidence: 99%

Development approach of a programmable and open software package for power system frequency response calculation

Xie

Zhang

et al. 2017

Prot Control Mod Power Syst

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Dynamic behaviour of frequency is crucial for power system operation and control. Several frequency response models have been proposed to reveal frequency dynamics from different aspects. A comprehensive software package incorporating major frequency response models is needed for analysis and control of power system frequency dynamics. In this paper, an approach for developing a programmable and open software package for frequency response studies is proposed. The framework of the package is extendable with reduced frequency response models. Essential models for frequency response study are included, e.g., generator, load, and under-frequency load shedding (UFLS). The provided application program interfaces (APIs) enable simulation with high-level languages by calling dynamic link library and makes the package programmable. An advanced application module is developed for quantitative assessment of transient frequency deviation. APIs can also be used for model extension and secondary development. To demonstrate the usage of the package, several examples are illustrated to explain how to perform simulations with the package, and to perform advanced applications using scripting with the provided APIs.

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Application of wide area measurement systems to islanding detection of bulk power systems

Cited by 86 publications

References 20 publications

Controlled islanding schemes for interconnected power systems based on coherent generator group identification and wide-area measurements

Controlled islanding schemes for interconnected power systems based on coherent generator group identification and wide-area measurements

Wide area phase angle measurements for islanding detection — An adaptive nonlinear approach

Development approach of a programmable and open software package for power system frequency response calculation

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