Equipment-Level Locating of Low Frequency Oscillating Source in Power System With DFIG Integration Based on Dynamic Energy Flow

Ma, Jing; Zhang, Yongxin; Shen, Yaqi; Cheng, Po-Tai; Phadke, A.G.

doi:10.1109/tpwrs.2020.2977356

Cited by 14 publications

(8 citation statements)

References 23 publications

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“…where G r (s) = (k pr s + k ir )/2Hs 2 , G pll (s) = (k ppll + k ipll /s)/s. Bring G r (s) and G pll (s) into Equation (17) and take the imaginary part to obtain Equation ( 18)…”

Section: Influence Of Parametersmentioning

confidence: 99%

“…Then the established energy structure is applied to the location of the forced oscillation source. Literature [17] constructed the energy-related topology network with control in DFIG, deduced the analytical expression of the energy of each subsystem, and then combined the derivation results with the partial directional coherence (PDC). The disturbance source location of the small disturbance and forced oscillation is realized.…”

Section: Introductionmentioning

confidence: 99%

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Construction of detailed energy function of double‐fed induction generator for small signal stability analysis of power systems with a high penetration of double‐fed induction generator

Liu

Diao

Cai

et al. 2022

IET Generation Trans & Dist

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The integration of high proportion renewable energy not only brings many benefits, but also increases the difficulty of power system stability analysis. One of the reasons for this problem is the unclear internal characteristics of new energy equipment. Therefore, there is an urgent need for a more detailed analysis of the characteristics of new energy equipment. Taking a double-fed induction generator (DFIG), which has complex operation characteristics and is widely used, as an example, a detailed energy function (DEF) of DFIG for small signal stability analysis is proposed in this paper. This method performs DFIG's internal energy analysis, making the traditional energy structure more comprehensive. On this basis, the internal parameters of DFIG with high sensitivity to stability are obtained, and the damping evaluation index is constructed to evaluate the damping of DFIG. Finally, the proposed model's correctness and method are verified in the 4-generator 2-area system.

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“…where G r (s) = (k pr s + k ir )/2Hs 2 , G pll (s) = (k ppll + k ipll /s)/s. Bring G r (s) and G pll (s) into Equation (17) and take the imaginary part to obtain Equation ( 18)…”

Section: Influence Of Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Construction of detailed energy function of double‐fed induction generator for small signal stability analysis of power systems with a high penetration of double‐fed induction generator

Liu

Diao

Cai

et al. 2022

IET Generation Trans & Dist

View full text Add to dashboard Cite

show abstract

“…In [18], an optimized proportional-integral-derivative controller is proposed to improve the performance of VIC to achieve better frequency stability. References [19] and [20] investigate power system stability in terms of energy dissipation under the combined influence of a PLL and VIC. The studies have found that with a higher virtual inertial gain, the possibility that the energy dissipation may cause power system instability will be greater.…”

Section: Introductionmentioning

confidence: 99%

Design of Power System Stabilizer for DFIG-based Wind Energy Integrated Power Systems Under Combined Influence of PLL and Virtual Inertia Controller

Sahu,

Prasad Padhy

2024

Journal of Modern Power Systems and Clean Energy

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Wind energy systems (WESs) based on doubly-fed induction generators (DFIGs) have enormous potential for meeting the future demands related to clean energy. Due to the low inertia and intermittency of power injection, a WES is equipped with a virtual inertial controller (VIC) to support the system during a frequency deviation event. The frequency deviation measured by a phase locked loop (PLL) installed on a point of common coupling (PCC) bus is the input signal to the VIC. However, a VIC with an improper inertial gain could deteriorate the damping of the power system, which may lead to instability. To address this issue, a mathematical formulation for calculating the synchronizing and damping torque coefficients of a WES-integrated single-machine infinite bus (SMIB) system while considering PLL and VIC dynamics is proposed in this paper. In addition, a power system stabilizer (PSS) is designed for wind energy integrated power systems to enhance electromechanical oscillation damping. A small-signal stability assessment is performed using the infinite bus connected to a synchronous generator of higher-order dynamics integrated with a VICequipped WES. Finally, the performance and robustness of the proposed PSS is demonstrated through time-domain simulation in SMIB and nine-bus test systems integrated with WES under several case studies.

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“…The interest in the problem of LFO has grown today, including in connection with the development of renewable energy sources, the introduction of which leads to the destabilization of the traditional power system, the emergence of new types of oscillations, and the complexity of control [3,4].…”

Section: Introductionmentioning

confidence: 99%

Investigation the influence of the parameters of the computational scheme on detecting the source of low-frequency oscillations

2023

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The dispatching control requires the ability to detect the source of low-frequency oscillations in the power system based on the online processing of synchrophasor measurements data. This is a complex task; therefore, new approaches to its solution and variations of existing ones are constantly emerging. As a rule, a short expression of the criterion of a particular method hides a number of stages of computational data processing. The number of possible implementations of these stages increases during the investigation. The set, settings, implementation of the stages of the computational scheme, and combination of these stages affect the final result. Earlier, the authors developed a high-performance software platform that allows describing computational schemes in a general way, and then performing calculations with specified sets of algorithms. In this paper, a generalized calculation scheme for the dissipating energy method is constructed, and experiments are performed showing the influence of details of the implementation of data processing stages on the result of the online detection of the source of lowfrequency oscillations.

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Equipment-Level Locating of Low Frequency Oscillating Source in Power System With DFIG Integration Based on Dynamic Energy Flow

Cited by 14 publications

References 23 publications

Construction of detailed energy function of double‐fed induction generator for small signal stability analysis of power systems with a high penetration of double‐fed induction generator

Construction of detailed energy function of double‐fed induction generator for small signal stability analysis of power systems with a high penetration of double‐fed induction generator

Design of Power System Stabilizer for DFIG-based Wind Energy Integrated Power Systems Under Combined Influence of PLL and Virtual Inertia Controller

Investigation the influence of the parameters of the computational scheme on detecting the source of low-frequency oscillations

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