Understanding power system stability

  title={Understanding power system stability},
  author={Michael Basler and Richard C. Schaefer},
  journal={58th Annual Conference for Protective Relay Engineers, 2005.},
  • M. Basler, R. Schaefer
  • Published 24 June 2007
  • Engineering
  • 58th Annual Conference for Protective Relay Engineers, 2005.
This paper discusses the causes of power system instability and the importance of fast fault clearing. The k-constant model is used to explain the relationships among the following: small signal stability, high impedance transmission lines, line loading and high gain, fast acting excitation systems. Various types of power system instability, utilizing both mathematical and practical approaches, are covered. Transient stability is discussed, including synchronizing and damping torques. The power… 
Implementation of Power System Stabilizers in a Power Grid: A Case Study
  • M. CarterXiaodong Liang
  • Engineering, Physics
    2019 IEEE Canadian Conference of Electrical and Computer Engineering (CCECE)
  • 2019
It is found that power system stabilizers can significantly reduce power oscillations on the 138 kV system and avoid customer outages and is demonstrated through a case study by analyzing a real-life event that resulted in the loss of power to numerous customers in a power grid in Canada.
Transient stability for IEEE 14 bus power system using power world simulator
The variations in power angle, bus voltage and system frequency were studied with the help of three-phase balanced fault and impact of fault location on system was computed to observe whether it affected the stability of the systems.
A novel control strategy for static excitation system based on three-phase current source converter
In modern power system, increasing pressures of system stability have become more and more serious. Because ex citation systems are one of the most effective and economical ways contribute to
Analysis of the damping contribution of power system stabilizers driving wind power plants
Recently, the concept of wind power plant has been introduced as a result of the increment of wind power penetration in power systems. A wind power plant can be defined as a wind farm, which is
Design and implementation of voltage source converter excitation system to improve power system stability
This paper presents the design of the voltage source converter(VSC) excitation system and an integrated prototype using digital signal processor(DSP) as the core of the excitation controller is
This paper presents frequency stability enhancement using Artificial Neural Network based adaptive load shedding during the various fault contingencies. At any given moment, the electrical power
A single machine infinite bus power system excitation control design with extended reduced-order observer
This paper presents an extended reduced-order observer (EROO) in order to improve the stability and voltage regulation of a synchronous machine connected to an infinite bus power system through a
Effect of Extended State Observer and Automatic Voltage Regulator on Synchronous Machine Connected to Infinite Bus Power System
The proposed ESO provides the estimate of system states as well as disturbance state together in order to improve not only the damping but also compensates system efficiently in presence of parameter uncertainties and external disturbances.


Voltage versus VAr/power factor regulation on synchronous generators
  • T. EberlyR. Schaefer
  • Engineering
    Conference Record of the 2002 Annual Pulp and Paper Industry Technical Conference (Cat. No.02CH37352)
  • 2002
The effect of changing system bus voltage on small generators utilizing voltage versus VAr/power factor regulation is illustrated.
Design of a Power System Stabilizer Sensing Frequency Deviation
A power system stabilizer specifically designed to the performance specifications of various utilities in the Western United States has been developed. The stabilizer utilizes synchronous machine
Influence of Excitation and Speed Control Parameters in Stabilizing Intersystem Oscillations
Intersystem power oscillations have occurred between the interconnected utility systems of Saskatchewan, Manitoba, and Ontario (West System). Such power swings have been most evident when the power
Damping of Power Oscillations in Salient-Pole Machines with Static Exciters
It is generally accepted that a high-performance excitation system may reduce the effective internal damping of a synchronous machine. Alternately, studies and field tests indicate that a fast-acting
A Power System Stabilizer Application with Local Mode Cancellation
This power system stabilizer application overcomes an unusual combination of constraints which would otherwise severely limit the damping influence obtainable from a conventional stabilizer system. A
Dynamic Stability Improvvement at Monticello Station-Analytical Study and Field Tests
Turbine-generator Units #1 and #2 at the Texas Utilities Monticello Station were found to be dynamically unstable when operating near full load and connected to the power system by a single
Normal modes and mode shapes applied to dynamic stability analysis
A power system of n generators has n-1 normal modes of oscillation. If any of these modes is poorly damped, persistent or disruptive oscillations may occur. Knowledge of the normal modes and mode
Dynamic Stability Tests on a 733 MVA Generator at Kincaid Station
Field tests have confirmed that properly designed excitation control can extend the dynamic stablity range of machines. A new type of stability compensation, described in a companion paper, has been
Complex Root Compensator A New Concept for Dynamic Stability Improvement
The theoretical background for a new method of extending the dynamic stability limit is presented in this paper. Analysis of the transfer function of a synchronous machine, connected to an infinite
Effect ofPrime-Mover Speed Control Characteristics onElectric Power System Performance
During normal operation the prime-mover speed governors function principally as stabilizers, automatic power-frequency control taking over the job of maintaining tie-line power schedules, frequency,