Analysis of Damping and Synchronizing Torques Part I-A General Calculation Method

Alden, R.T.H.; Shaltout, A.

doi:10.1109/tpas.1979.319487

Cited by 55 publications

(18 citation statements)

References 1 publication

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“…For an SMIB system, the damping torque coefficient can be estimated using the system response by using the least square method [26,27] or Kalman filter [28]. To extend the concept to multi-machine power systems, the first attempt in [29] estimates the damping torque for each single generator using its own electrical torque, rotor angle and rotor speed trajectories based on the least square error.…”

Section: Damping Torque Based Methodsmentioning

confidence: 99%

Location methods of oscillation sources in power systems: a survey

Wang

Sun

2016

J. Mod. Power Syst. Clean Energy

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The deployment of a synchrophasor-based widearea measurement system (WAMS) in a power grid largely improves the observability of power system dynamics and the operator's real-time situational awareness for potential stability issues. The WAMS in many power grids has successfully captured system oscillation events, e.g. poorly damped natural oscillations and forced oscillations, from time to time. To identify the root cause of an observed oscillation event for further mitigation actions, many methods have been proposed to locate the source of oscillation based on different ideas and principles. However, most methods proposed so far for locating the oscillation source in a power grid are not reliable enough for practical applications. This paper presents a comprehensive review of existing location methods, which basically fall into four major categories, plus a few other methods. Their advantages and disadvantages are discussed in detail. Some trends and challenges on the problem of oscillation source location are pointed out along with potential future research directions. Finally, a practical, general scheme for oscillation source location using available location methods is suggested and analyzed.

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Section: Damping Torque Based Methodsmentioning

confidence: 99%

Location methods of oscillation sources in power systems: a survey

Wang

Sun

2016

J. Mod. Power Syst. Clean Energy

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“…It is also possible to calculate K s and K d from the time responses of the oscillatory signals DT e , Dd and Dx following a minor system disturbance. One common technique to accomplish such a calculation is the ordinary least-square method first presented by Alden and Shaltout [19]. In this paper, the authors show that minimization of the square of the error EðtÞ ¼ DT e ðtÞ À ðK s DdðtÞ þ K d DxðtÞÞ; ð3Þ leads to the system of algebraic equations (4) and (5):…”

Section: Calculation Of K D and K Smentioning

confidence: 99%

“…Analytical expressions of damping torque contributions from individual windings are provided in [19]. The application of these equations on the two-axis model oscillatory responses to the bus voltage and driving torque disturbances yielded the results shown in Table 8.…”

Section: Impact Of the Disturbance Typementioning

confidence: 99%

Use of a finite element model for the determination of damping and synchronizing torques of hydroelectric generators

Ranlöf

Bladh

Lundin

2013

International Journal of Electrical Power & Energy Systems

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“…x(t) Eee~,t]Ut'V/xo I Various methods have been proposed to break the electromagnetic torque variations to synchronizing and dampingtorquecomponents [6][7][8][9][10][11][12][13][14][15][16][17]. The damping torque component is found to be reIated to the real part a, and the synchronizing torque componenl is related to the imaginary part j (U,.…”

Section: Synchronizing and Damping Torque Coefficientsmentioning

confidence: 99%

“…These methods are based on the linearizedequations and the block diagram of the machine, and are calculated in the frequency domain. A time-domain method to calculate these torques has, also, been developed by Alden and Shaltout [13]. This method is based on the time responses of the changes in rotor angle, the rotor speed, and the electromagnetic torque (6.…”

Section: Introductionmentioning

confidence: 99%

On-Line Estimation of Synchronizing and Damping Torque Coefficients Using an Artificial Neural Network Based Approach

Feilat

Aggoune

Bettayeb

et al. 1997

Electric Machines & Power Systems

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This paper presents an artificial neural network based on-line approach to assess the dynamic stabilityof a single machine connected to an infinite bus system. The proposed approach is based on estimating the synchronizing and damping torque coefficients of the synchronous machine from voltage and power on-line measurements. Test results show that the proposed approach is very encouraging for fast evaluation of the dynamic stability.

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Analysis of Damping and Synchronizing Torques Part I-A General Calculation Method

Cited by 55 publications

References 1 publication

Location methods of oscillation sources in power systems: a survey

Location methods of oscillation sources in power systems: a survey

Use of a finite element model for the determination of damping and synchronizing torques of hydroelectric generators

On-Line Estimation of Synchronizing and Damping Torque Coefficients Using an Artificial Neural Network Based Approach

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