Controller design for TCSC using observed-state feedback method to damp SSR in DFIG-based wind farms

Mohammadpour, Hossein Ali; Siegers, Jonathan; Santi, Enrico

doi:10.1109/apec.2015.7104778

Cited by 11 publications

(5 citation statements)

References 17 publications

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“…The function of these two methods is to introduce additional damping into the system. The required damping can be obtained either using SSR damping controller (SSRDC) [35–38, 42–46, 72] or virtual impedance [39]. The typical configuration of a SSRDC is shown in Fig.…”

Section: Sso In Wfs Based On Type 3 Wtgsmentioning

confidence: 99%

“…The TCSC boosts power transfer capability into the transmission line at the fundamental frequency while providing positive resistance to damp SSO at the sub‐synchronous frequencies [41]. SSO damping performance can be further improved using additional SSRDCs as proposed in [72]. A gate‐controlled series capacitor with an additional SSRDC has a similar SSO damping performance such as a TCSC with a SSRDC [42, 43].…”

Section: Sso In Wfs Based On Type 3 Wtgsmentioning

confidence: 99%

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Sub‐synchronous oscillations in wind farms – an overview study of mechanisms and damping methods

Shi

Nayanasiri

2020

IET Renewable Power Generation

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Sub‐synchronous oscillation (SSO) causes significant damage and performance degradation in wind farms (WFs). The root causes and mitigation methods of SSO have been identified as a result of many studies. An overview that analysed and summarised those findings in different perspectives helps optimise the existing solutions and to find alternative approaches to mitigate SSO. Therefore, a comprehensive overview of the SSO analysing techniques, mechanisms, and mitigation strategies are presented in this study. This overview is focused on the WFs based on type 3 and 4 wind turbine generators and the WFs connected to high‐voltage DC transmission systems. The dominant SSO modes in each application have been presented along with the identified root cause, influencing factors, and the mitigation methods. Besides that, a comprehensive comparison between the existing mitigation strategies is presented to identify the alternative approaches and improvements. The identified improved methods are presented along with the time and frequency domain simulation results to validate their applicability. Finally, an insight into the future direction of this research is presented along with the conclusions.

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Section: Sso In Wfs Based On Type 3 Wtgsmentioning

confidence: 99%

Section: Sso In Wfs Based On Type 3 Wtgsmentioning

confidence: 99%

Sub‐synchronous oscillations in wind farms – an overview study of mechanisms and damping methods

Shi

Nayanasiri

2020

IET Renewable Power Generation

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“…The damping of different oscillation modes may become worse due to improper parameters, and parameter optimization will become more challenging [11]. As for adding SSO suppression devices, references [12][13][14] proposed to add flexible AC transmission systems (FACTS) such as STATCOM to system to restrain the SSO. In addition, it was proved that a renewable energy hydrogen production system (HPS) can mitigate SSO in [15].…”

Section: Introductionmentioning

confidence: 99%

A Sub-Synchronous Oscillation Suppression Strategy Based on Active Disturbance Rejection Control for Renewable Energy Integration System via MMC-HVDC

et al. 2023

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To realize the consumption of renewable energy such as wind power and photovoltaics in the power system, renewable energy integration system via modular multilevel converter (MMC)-based high voltage direct current (MMC-HVDC) has been widely applied. However, with the large-scale grid connection of renewable energy units, sub-synchronous oscillation (SSO) is prone to occur. Aiming at the problem, this paper proposes an SSO suppression strategy for renewable energy integration system via MMC-HVDC based on active disturbance rejection control (ADRC) theory. Using the direct drive permanent magnet synchronous generators (PMSG)-based wind farm integration system via MMC-HVDC as an example, firstly the topology and control system principles of the system are described, and a simulation model is built in PSCAD/EMTDC. Moreover, the SSO mechanism of the system is revealed by Nyquist stability criterion, and the major factors affecting the SSO of the system are simulated and analyzed. Subsequently, an additional sub-synchronous damping controller (ASSDC) is proposed based on ADRC theory. Compared to traditional additional damping controllers, the proposed controller considers disturbances of the system during the designing process and has stronger robustness. In addition, when faults happen, the speed of the system with ASSDC reaching a steady-state operating point rises by 33.7% as compared to the system without ASSDC. Finally, the effectiveness of the proposed suppression strategy is verified through simulation analysis.

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“…However, the main drawback of these methods is that the SSR frequency is detected after a long time. On the other hand, the SSR phenomenon can be damped using different technologies such as FACTS [25]- [27], supplementary damping controller [28]- [29], passive blocking filter [14], and Kalman filter [30]. Although the damping methods can mitigate SSR, the protection system assure the safety of the network components under any condition.…”

Section: Introductionmentioning

confidence: 99%

An Improved Fast Detection Method on Subsynchronous Resonance in a Wind Power System With a Series Compensated Transmission Line

Abdeen

Chai

et al. 2019

IEEE Access

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Subsynchronous resonance (SSR) occurs mainly in series compensated transmission line connected to the wind power system. This phenomenon (SSR) can lead to electrical instability and potential turbine generator shaft failure. Thus, the protection system is an essential part to avoid the harm of SSR. In this paper, an improved fast detection method is proposed to detect the SSR phenomenon in a very short time. It consists of two stages; first, the positive or negative half-cycle time of each cycle of voltage signal is detected based on four steps, namely, signal conversion, comparison, integrator, and sample and hold; second, the obtained time is compared with the damping and trip threshold values, and the best action is determined (addressing or trip) based on the value of half-cycle time. The effectiveness and superiority of the improved fast SSR detection method are validated at different compensation levels and compared with the traditional method and subsynchronous oscillation relay (SSO). The simulation results prove that the improved method is more efficient in all types of SSR phenomenon; induction generator effect (IGE), control interactions (CI), and torsional interaction (TI) at different compensation levels. In addition, a comparative study among these three types of SSR with the proposed method is carried out, and the obtained results show that the CI is a suitable type with the proposed method.

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Controller design for TCSC using observed-state feedback method to damp SSR in DFIG-based wind farms

Cited by 11 publications

References 17 publications

Sub‐synchronous oscillations in wind farms – an overview study of mechanisms and damping methods

Sub‐synchronous oscillations in wind farms – an overview study of mechanisms and damping methods

A Sub-Synchronous Oscillation Suppression Strategy Based on Active Disturbance Rejection Control for Renewable Energy Integration System via MMC-HVDC

An Improved Fast Detection Method on Subsynchronous Resonance in a Wind Power System With a Series Compensated Transmission Line

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