Features of practical application of electric power system’s stability estimation methods

Timeliness of the topic is conditioned by the need to keep up ample of static and transient stability margins in modern electrical power systems. The article object is to give a determination of present methods of evaluating damping of systems with synchronous machines, in the context of their effectiveness. And also to estimate the effectiveness of these methods in the performance of the task concerned with selecting best settings of automatic excitation regulators of synchronous generators. This analysis led us to the conclusions, in particular, about possibility to apply the root locus methods in estimating stability of electrical power systems, and also about genericity of the matrix method with the use of QR-algorithm, which is widely used in practice of calculating stability

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DETERMINATION OF APERIODIC STATIC STABILITY MARGINS OF ELECTRICAL POWER SYSTEMS BASED ON A STOCHASTIC APPROACH

Proceedings of Irkutsk State Technical University ◽

10.21285/1814-3520-2016-4-125-135 ◽

2016 ◽

Vol 111 (4) ◽

pp. 125-135

Author(s):

Andrei Kryukov ◽

◽

Vladislav Senko ◽

Evgeniy Tikhomirov ◽

◽

...

Keyword(s):

Power Systems ◽

Electrical Power ◽

Stochastic Approach ◽

Static Stability ◽

Electrical Power Systems ◽

Stability Margins

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Power-Angle Modulation Controller to Support Transient Stability of Power Systems Dominated by Power Electronic Interfaced Wind Generation

Energies ◽

10.3390/en13123178 ◽

2020 ◽

Vol 13 (12) ◽

pp. 3178 ◽

Cited By ~ 3

Author(s):

Arcadio Perilla ◽

José Luis Rueda Torres ◽

Stelios Papadakis ◽

Elyas Rakhshani ◽

Mart van der Meijden ◽

...

Keyword(s):

Power Systems ◽

Transient Stability ◽

Electrical Power ◽

Power Electronic ◽

Electrical Power Systems ◽

Wind Generator ◽

Wind Generators ◽

Type Iv ◽

Generator Type ◽

Angle Modulation

During the last few years, electric power systems have undergone a widespread shift from conventional fossil-based generation toward renewable energy-based generation. Variable speed wind generators utilizing full-scale power electronics converters are becoming the preferred technology among other types of renewable-based generation, due to the high flexibility to implement different control functions that can support the stabilization of electrical power systems. This paper presents a fundamental study on the enhancement of transient stability in electrical power systems with increasing high share (i.e., above 50%) of power electronic interfaced generation. The wind generator type IV is taken as a representative form of power electronic interfaced generation, and the goal is to investigate how to mitigate the magnitude of the first swing while enhancing the damping of rotor angle oscillations triggered by major electrical disturbances. To perform such mitigation, this paper proposes a power-angle modulation (PAM) controller to adjust the post-fault active power response of the wind generator type IV, after a large disturbance occurs in the system. Based on a small size system, the PAM concept is introduced. The study is performed upon time-domain simulations and analytical formulations of the power transfer equations. Additionally, the IEEE 9 BUS system and the test model of Great Britain’s system are used to further investigate the performance of the PAM controller in a multi-machine context, as well as to perform a comparative assessment of the effect of different fault locations, and the necessary wind generators that should be equipped with PAM controllers.

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