A PMU based special protection scheme: a case study of Taiwan power system

Wang, Yi-Jen; Liu, Chih-Wen; Liu, Yuin-Hong

doi:10.1016/j.ijepes.2004.09.008

Cited by 31 publications

(17 citation statements)

References 3 publications

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“…The proposed technique is summarized as follows: Suppose all generators are equipped with PMU to measure the generator voltage and current phasors. The rotor angle of each generator, δ, can be calculated by means of PMU data and generator transient reactance as

\bar{E} = {\overset{true-}{V}}_{T} + j \bar{I} X_{d}^{'} .

…”

Section: The Proposed Approachmentioning

confidence: 99%

“…This method reduces the power system to 1 machine infinite bus system and analyzes the stability of the reduced system based on the EAC concept. In previous studies, a special protection scheme is developed based on 1 machine infinite bus and EAC to prevent the power system from blackout during the power swing. The postfault ( P − δ ) curves are estimated using the least square method.…”

Section: Introductionmentioning

confidence: 99%

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Predictive out-of-step relay based on equal area criterion and PMU data

Alinezhad

Karegar

2017

Int. Trans. Electr. Energ. Syst.

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This paper proposes a novel-predictive and setting-free out-of-step protection technique based on synchronized phasor measurements and equal area criterion. Generator instability is predicted by comparing the acceleration and deceleration areas corresponding to the fault and postfault conditions, respectively. For each generator, the acceleration area during fault condition is calculated directly using the generator output power and rotor angle in real time. As soon as the fault is cleared, the deceleration area is predicted based on estimating the postfault Thévenin equivalent of the power network. The proposed technique is verified on the New England 39-bus test network. The effect of the proposed technique on improvement of the power network stability is compared with that of the well-known impedancebased out-of-step relay. KEYWORDS equal area criterion, impedance-based OOS relay, out-of-step, phasor measurement unit, Thévenin equivalent

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\bar{E} = {\overset{true-}{V}}_{T} + j \bar{I} X_{d}^{'} .

…”

Section: The Proposed Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Predictive out-of-step relay based on equal area criterion and PMU data

Alinezhad

Karegar

2017

Int. Trans. Electr. Energ. Syst.

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“…In PDC, the measured data from the whole power system are synchronized by using the time stamps. This information provides great potential for many applications including power system state estimation , wide‐area control and monitoring , fault location and detection , wide‐area protection , transient stability analysis and prediction , online small signal stability analysis , parameter identification of transmission lines , and power system restoration .…”

Section: Introductionmentioning

confidence: 99%

Identification of inter-area oscillations using wavelet transform and phasor measurement unit data

Shiri

Mohammadi‐Ivatloo

2014

Int. Trans. Electr. Energ. Syst.

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“…PMU can provide synchronous measurements of phasors for the same time stamp and become the foundation of various kinds of wide-area protection and control schemes [15]- [18]. If PMU is utilized as the SPS measurement device, the voltage and current synchrophasors over a large area can be easily obtained and the SPS actually becomes a powerful scheme with capability of wide-area protection and control [19].…”

mentioning

confidence: 99%

Reliability evaluation of a conceptual all-digital special protection system architecture for the future smart grid

Jiang

Singh

2011

2011 IEEE Power and Energy Society General Meeting

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The smart grid is emerging with the penetration of information-age technologies and the development of the special protection system (SPS) will be greatly influenced. This paper proposes a conceptual all-digital SPS architecture for the future smart grid. The focus of the paper is how to apply reliability analysis approaches to the new all-digital SPS schemes. Calculation of important reliability indices by the network reduction method and the Markov modeling method is illustrated in detail.

show abstract

A PMU based special protection scheme: a case study of Taiwan power system

Cited by 31 publications

References 3 publications

Predictive out-of-step relay based on equal area criterion and PMU data

Predictive out-of-step relay based on equal area criterion and PMU data

Identification of inter-area oscillations using wavelet transform and phasor measurement unit data

Reliability evaluation of a conceptual all-digital special protection system architecture for the future smart grid

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