Reexamination of new-generation general wind turbine models in PSD-BPA transient stability simulation program

Guo, Yazhou; Huang, Ruanming; Zhu, Miao; Cai, Xu

doi:10.1109/iciea.2018.8397784

Cited by 2 publications

(4 citation statements)

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“…The model used for TSA is as follows. First, the driven-train system takes on the role of speed drive and axial torque transmission [24]. In order to simplify the analysis, the single mass model is selected.…”

Section: Dfig Modelmentioning

confidence: 99%

“…In addition, when 𝛿 max is greater than 180 • , the system is judged as transient instability. Therefore, the characteristic of LF and TDS information can be combined by (24). Then, the fitness value of the agent in the optimization algorithm is calculated by using the values of state variables and approximate Lyapunov function value.…”

Section: Fitness Functionmentioning

confidence: 99%

“…Step 1: Construct the fault dataset based on the preset faults. Record values of system state variables at fault clearing time and calculate approximate Lyapunov function value T R according to (24).…”

Section: The Proposed Iteration Approachmentioning

confidence: 99%

“…In addition, Figure 7 shows the distribution results of the samples obtained in Section 5.1 in the plane (x 1 , x 3 ) at fault clearing time. The stability of fault samples is determined by (24). For the shape functions p 1 (x) and p 2 (x), the maximum boundary value is obtained by increasing 𝛿 until K R (p(x), 𝛿) approximates the actual ROA boundary or unstable sample.…”

Section: Coefficientsmentioning

confidence: 99%

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A Lyapunov approach based on gravitational search algorithm for transient stability assessment of AC/DC systems with wind power

Xie

Zhang

Zhou

et al. 2023

IET Generation Trans & Dist

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With large-scale wind farms connected to AC/DC network, the transient stability assessment (TSA) of the power system becomes more and more difficult. Among them, estimating the region of attraction (ROA) of the equilibrium point is a traditional but still challenging problem. Based on the Lyapunov stability theory, this paper proposes a new approach to obtain the enlarged estimation of the ROA. The optimization and updating strategy of shape function in the sum of squares (SOS) optimization problem are studied to reduce the conservatism of estimation result. In the proposed method, the gravitational search algorithm (GSA) is employed to optimize the coefficients of initial shape function to improve estimation performance. Based on the time-domain simulation (TDS) of expected faults, the fitness value for shape function optimization is calculated using the values of state variables at the fault clearing time and the system stability information. Furthermore, the optimal Lyapunov function is computed by introducing the update condition of shape function and adjusting the iteration strategy of the ROA estimation algorithm. Finally, the proposed method is applied to a two-machine-infinite-bus system and a more complex nine-bus AC/DC system with wind power. And the effectiveness of the proposed method is verified by comparing with the existing ROA estimation methods.

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Section: Dfig Modelmentioning

confidence: 99%

Section: Fitness Functionmentioning

confidence: 99%

Section: The Proposed Iteration Approachmentioning

confidence: 99%

Section: Coefficientsmentioning

confidence: 99%

See 2 more Smart Citations

A Lyapunov approach based on gravitational search algorithm for transient stability assessment of AC/DC systems with wind power

Xie

Zhang

Zhou

et al. 2023

IET Generation Trans & Dist

View full text Add to dashboard Cite

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Analysis on Sensitivity of Power System Stability to Generator Parameters

Sun¹

2019

JPEE

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The sensitivity of power system stability (including transient and dynamic stabilities) to generator parameters (including parameters of generator model, excitation system and power system stabilizer) is analyzed in depth by simulations. From the tables and plots of the resultant simulated data, a number of useful rules are revealed. These rules can be directly applied to the engineering checking of generator parameters. Because the complex theoretical analyses are circumvented, the checking procedure is greatly simplified, remarkably promoting the working efficiency of electrical engineers on site. are the total magnetic flux linkages of d-axis and q-axis windings, excitation winding f, equivalent damping windings D, g and are the synchronous reactances of d-axis and q-axis, the armature reaction reactances of d-axis and q-axis windings, the reactance of excitation winding f, the reactances of equivalent damping windings D, g and Q. And, in Equation (1) two assumptions are made: i) assume dψ d /dt ≈ 0 and dψ q /dt ≈ 0, that is, the elec-

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Reexamination of new-generation general wind turbine models in PSD-BPA transient stability simulation program

Cited by 2 publications

References 0 publications

A Lyapunov approach based on gravitational search algorithm for transient stability assessment of AC/DC systems with wind power

A Lyapunov approach based on gravitational search algorithm for transient stability assessment of AC/DC systems with wind power

Analysis on Sensitivity of Power System Stability to Generator Parameters

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