Mitigating Subsynchronous Resonance Using Synchrophasor Data Based Control of Wind Farms

Mahish, Priyatosh; Pradhan, Ashok Kumar

doi:10.1109/tpwrd.2019.2929616

Cited by 38 publications

(14 citation statements)

References 23 publications

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“…The typical high-frequency oscillation phenomenon often occurs in large-scale wind farm stations, and the oscillation frequency is usually within 300Hz to 2000Hz [22]- [23]. In order to further verify the feasibility and correctness of the proposed specific inter-harmonic control method based on PSR-PWM in this paper, the specific inter-harmonic voltage required by the inverter is controlled to suppress the interharmonic voltage in the grid.…”

Section: B Contrast Analysismentioning

confidence: 99%

Characteristic Harmonic Spectrum Relocating for Controlling Specific Inter-Harmonics of Inverters With New Phase-Shifted Rotating PWM

Xie

Zhang

et al. 2020

IEEE Access

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The problems of sub-synchronous oscillation and high-frequency oscillation related to interharmonics need to be solved in intermittent energy generation systems. The paper proposes a new Phase-Shifted Rotating Pulse Width Modulation (PSR-PWM) technique for specific inter-harmonics control, which can eliminate the specific inter-harmonic that may cause related inter-harmonic oscillations in power system. Based on the time-shift and phase-shift characteristic of signals, the initial phase angle of a characteristic harmonic is linearly modulated to realize the frequency control of moving the spectrum to the desired inter-harmonic spectrum. Therefore, the inverter controlled by the proposed PWM technique behaves as a controlled inter-harmonic voltage source, so as to suppress the specific inter-harmonics in the grid. The analysis of typical simulation cases shows that the maximum frequency offset range for any modulated output voltage characteristic harmonic of the inverter is from-50Hz to 50Hz theoretically. The amplitude of the inter-harmonic voltage combined with its phase angle and frequency can be continuously controlled over a wide frequency range simultaneously, and the suppression effect of other parasitic interharmonics is obviously better. Finally, the feasibility and correctness of proposed PSR-PWM techniques are verified by MATLAB simulations and experiments. This paper can be helpful for the study of new energy grid-connected inverters to damp sub-synchronous oscillations and high-frequency oscillation. INDEX TERMS frequency control range, frequency spectrum relocation, inter-harmonic control, interharmonic oscillation, phase-shifted rotating pulse width modulation This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.

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Section: B Contrast Analysismentioning

confidence: 99%

Characteristic Harmonic Spectrum Relocating for Controlling Specific Inter-Harmonics of Inverters With New Phase-Shifted Rotating PWM

Xie

Zhang

et al. 2020

IEEE Access

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“…In [78], a synchrophasor based gain scheduling of a SDC in a TCSC was designed. The gains were dynamically adjusted based on measurements of individual wind turbines in the wind farm and it was concluded that the proposed concept performs better than local TCSC control.…”

Section: System-level Coordinationmentioning

confidence: 99%

Critical Review of Mitigation Solutions for SSO in Modern Transmission Grids

et al. 2020

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The replacement of conventional generation by power electronics-based generation changes the dynamic characteristics of the power system. This results in, among other things, the increased susceptibility to subsynchronous oscillations (SSO). First, this paper discusses three recently emerging SSO phenomena, which arise due to the interactions between (1) a doubly-fed induction generator and a series compensated transmission system; (2) a voltage source converter (VSC) and a weak grid; and (3) nearby VSCs. A fundamental review of these phenomena resulted in the requirement for a reclassification of the existing SSO phenomena. This reclassification is proposed in this work and is based on interacting components identified using participation factor analysis for the distinct phenomena. Second, a critical review of the existing mitigation measures is performed for these phenomena, highlighting the advantages and disadvantages of the solutions. The influence of the wind speed, grid strength, number of wind turbines, and several converter controller parameters are also discussed. To assist equipment manufacturers, control design engineers, and system operators in selecting and designing effective mitigation measures, the existing solutions are categorized in control solutions, hardware solutions, and solutions based on system level coordination. Finally, perspectives on open issues conclude this paper.

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“…In order to mitigate and suppress SSR, several control schemes have been proposed in [4][5][6][7] and [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. Generally speaking, the above control schemes can be categorized into two classes.…”

Section: A Related Workmentioning

confidence: 99%

“…Generally speaking, the above control schemes can be categorized into two classes. The first class in [5][6][7] and [9][10][11][12] can be called as the grid-side suppression schemes. The thyristorcontrolled series capacitor (TCSC) based damping scheme was proposed in [5,6], which suppresses SSR by adjusting the series compensation in sub-synchronous frequency range.…”

Section: A Related Workmentioning

confidence: 99%

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An Effective Control Scheme for Multimodal SSR Suppression via VSC-Based Controller

Yuan

Zhang

et al. 2020

IEEE Access

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Multimodal sub-synchronous resonance (SSR) induced by the interactions between the generator shafts and the fixed series capacitors has become a serious threat for the power system. To overcome this, a voltage source converter (VSC) based controller for multimodal SSR suppression, named sub-synchronous resonance dynamic suppressor (SSRDS), is presented and analyzed in this paper. The controller is placed at the point of common coupling (PCC) of the power plant for multi-generator SSR suppression purpose so that the investment costs can be minimized while making sure the requirements of the SSR damping. To quantify the contribution of SSRDS to the SSR damping, the damping torque analysis is carried out, which can reveal the influences of the operating conditions and the correlated control parameters on the damping performance. Furthermore, to avoid the negative affects between the different TMs in close range as well as maximize the damping ability of SSRDS, the parameters tuning method of the mode filters and the gain and phase shifters are proposed. A detailed nonlinear simulation model is established in PSCAD/EMTDC based on the Jinjie series compensated transmission system located in China. The damping torque analysis, the eigenvalues analysis and the simulation results have fully demonstrated the effectiveness and the robustness of the proposed SSRDS for multi-generator and multimodal SSR suppression under both small and large disturbances in various operating conditions.

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Mitigating Subsynchronous Resonance Using Synchrophasor Data Based Control of Wind Farms

Cited by 38 publications

References 23 publications

Characteristic Harmonic Spectrum Relocating for Controlling Specific Inter-Harmonics of Inverters With New Phase-Shifted Rotating PWM

Characteristic Harmonic Spectrum Relocating for Controlling Specific Inter-Harmonics of Inverters With New Phase-Shifted Rotating PWM

Critical Review of Mitigation Solutions for SSO in Modern Transmission Grids

An Effective Control Scheme for Multimodal SSR Suppression via VSC-Based Controller

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