Solution for the crisis in electric power supply

Heydt, G.T.; Liu, C.C.; Phadke, A.G.; Vittal, Vijay

doi:10.1109/mcap.2001.952933

Cited by 145 publications

(73 citation statements)

References 3 publications

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“…Consider a sinusoidal signal (1) The phasor representation of this sinusoidal is given by (2) Note that the signal frequency ω is not explicitly stated in the phasorrepresentation. The magnitude of the phasor is the rms value of the sinusoid and its phase angle isφ , the phase angle of the signal in equation (1). The sinusoidal signal and its phasor representation given by equation (1) and (2) are illustrated in Fig.…”

Section: 1fundamentals Of Pmusmentioning

confidence: 99%

Application of Phasor Measurement Units (Pmus) in Electric Power System Network

2017

IJAERD

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Section: 1fundamentals Of Pmusmentioning

confidence: 99%

Application of Phasor Measurement Units (Pmus) in Electric Power System Network

2017

IJAERD

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“…congestion in routers etc.) it could go up to hundreds of milliseconds [4,5] or even more. Such delays, within the range of oscillation frequencies, cannot simply be ignored and should be considered in the control design.…”

Section: Introductionmentioning

confidence: 99%

Wide-area phasor power oscillation damping controller: a new approach to handling time-varying signal latency

Chaudhuri

Ray

et al. 2010

IET Gener. Transm. Distrib.

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Using present technology, latency associated with remote feedback signals can be determined from the time stamp information at both the PMU location and the control centre. This paper illustrates how this latency could be accounted for in the implementation of a widearea phasor power oscillation damping controller (phasor POD). The basic idea is to adjust the position of the rotating reference frame -used for phasor extraction -to account for the extra phase shift introduced due to latency. The oscillatory component of the original PMU measurement is retrieved out of the delayed signal received at the control centre. Thus, continuous compensation is achieved without requiring any Pade approximation and/or gain scheduling, unlike the techniques reported in the literature. With the proposed modification, a phasor POD is shown to continuously adapt to the actual latency and maintain the desired dynamic performance over a range of different operating conditions.

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“…The recent advances in wide area measurement (WAM) technologies using phasor measurement units (PMUs) can deliver synchronous control signals at high speed (Heydt et al, 2001). PMUs are deployed at strategic locations on the grid to obtain a coherent picture of the entire network in real time (Heydt et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

“…PMUs are deployed at strategic locations on the grid to obtain a coherent picture of the entire network in real time (Heydt et al, 2001). Global positioning system (GPS) technology ensures proper time synchronization among several global signals (Heydt et al, 2001). The measured global signals are then transmitted via modern telecommunication equipment to the controllers.…”

Section: Introductionmentioning

confidence: 99%