A review on damping of torsional interactions using VSC based FACTS and subsynchronous damping controller

Venkateswarlu, S.; Janaki, M. S.; Thirumalaivasan, R.; Prabhu, Nagesh

doi:10.1016/j.arcontrol.2018.08.001

Cited by 16 publications

(8 citation statements)

References 42 publications

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“…Based on linear system theory, the plant f L can achieve asymptotical stability by an appropriate control law v of (10). According to (8) and (9), the zero dynamic system can be expressed asż…”

Section: Control Law Designmentioning

confidence: 99%

“…In order to analyze and prevent catastrophic accident, some methods for calculating and analyzing torsional vibration of turbo-generator shafts were presented [5][6][7]. To alleviate or suppress torsional vibrations of large turbo-generator set shafts, many countermeasures have been proposed such as power system stabilizer (PSS) [8], voltage source converter (VSC) [9], static synchronous series compensator (SSSC) [10][11][12], single-pole switching technique [13], braking resistor [14], superconductive energy storage system [15], the nonlinear ZnO over-voltage protection of series capacitors [16], and high temperature super-conductive fault current limiter [17] etc. Most of them are based on the modulation of the effective and reactive powers to bring supplementary damping into the system.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Torsional Vibrations Control of Double‐Ended Driving and Dual‐Excited Turbo‐Generator Shafts Based on Multi‐Index Nonlinear Control

Qin

et al. 2021

IEEJ Transactions Elec Engng

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Non-member Yejie Tian, Non-member The problem of shafting torsional vibrations has been increasingly emerging due to the increasing capacity of turbo-generator and the complexity of power grid. Therefore, how to reduce the torsional vibration of the turbo-generator shaft and improve the stability of the power system has become the focus of our research. First, in order to solve the problem and alleviate the torsional vibrations of turbo-generator shafts, this paper proposed a new shafting structure model of Double-ended Driving and Dual-Excited Turbo-Generator set (DDDETG). A static excitation mode is used for the excitation of the DDDETG and the mechanical power is supplied symmetrically and synchronously from both ends of the generator rotor. Then, in order to improve the output characteristic of the generator and further suppress the torsional vibrations of the turbo-generator shafts, combined with the nonlinear control design method of partial feedback linearization, a Multi-Index Nonlinear Coordinated Control (MINCC) strategy for the double-ended driving and dual-excited turbo-generator is proposed to ensure good dynamic and static state performances of each state in the system. Finally, the simulation results on a single-machine infinite bus system demonstrate the effectiveness of the proposed control strategy. In addition, this paper compares the performance of DDDETG and the traditional Single-ended Drive and Single-Excited Turbo Generator (SDSETG), the simulation results show that the restraint effect of the DDDETG structure on shafting torsional vibrations is more obvious under the proposed control strategy.

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Section: Control Law Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Torsional Vibrations Control of Double‐Ended Driving and Dual‐Excited Turbo‐Generator Shafts Based on Multi‐Index Nonlinear Control

Qin

et al. 2021

IEEJ Transactions Elec Engng

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“…[2,3] proposed a by‐pass damped filter, which is parallel to the compensation capacitor to suppress the sub‐synchronous oscillation of the system by suppressing the sub‐synchronous current. Other counter‐ measures also have been proposed to alleviate the torsional vibration, such as various voltage source converters based FACTS [4], power system stabilizer (PSS) [5], the nonlinear ZnO over‐voltage protection of series capacitors [6] and superconductive energy storage system [7] etc. It can be seen from the above that most of them are based on the modulation of the effective and reactive powers to bring supplementary damping into the system, little consideration is given to solving the shafting stability problem from the structure of the turbo‐generator itself.…”

Section: Introductionmentioning

confidence: 99%

Study on torsional vibration suppression effect of double‐ended driving turbo‐generator shafting structure

Qin

et al. 2022

IEEJ Transactions Elec Engng

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In order to reduce the torsional vibration of the turbo-generator shaft and improve the stability of the power system, this paper proposed a more stable shafting structure model of Double ended Driving Turbo-Generator (DDTG) by improving the shafting structure of conventional turbo-generator set. For DDTG, the mechanical power is supplied symmetrically and synchronously from both ends of the generator. Compared with the conventional Single ended Driving Turbo-Generator (SDTG), simulation results verify the effectiveness of the proposed shafting structure model, and indicate that DDTG can effectively reduce the torsional vibration of turbo-generator shafts under the same electrical disturbance. Besides, in order to further suppress the torsional vibration of turbo-generator shafts and improve the system performance, based on the nonlinear control method with objective holographic feedback, a Coordinated Control law of Excitation and Steam-Valve (CCESV) is proposed. Under the action of CCESV, the simulation results show that the restraint effect of the DDTG on shafting torsional vibration is more obvious, and the dynamic and static performance of the system can be effectively improved.

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“…FACTS devices are often employed to enhance power system stability and power quality improvement. There are various types of FACTS devices, each with its attendant features, merits, and demerits [ 19 ]. A FACTS device can be used either individually or in coordination with another FACTS device type in order to provide control of transmission system parameters of interest, which are essential to the successful operation of the grid.…”

Section: Introductionmentioning

confidence: 99%

Application and control of flexible alternating current transmission system devices for voltage stability enhancement of renewable-integrated power grid: A comprehensive review

Adetokun

Muriithi

2021

Heliyon

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This paper presents a comprehensive review on the application and control of Flexible Alternating Current Transmission Systems (FACTS) devices in order to improve voltage stability of power grid with high share of renewable energy systems. The rise in the development of renewable energy technologies is driven by the attempts to mitigate the effects of global warming. In addition, global energy demand continues to rise as new electricity-driven systems such as electric vehicles are being developed and as remote locations are being connected to the grid. These changes in the power grid formation comes with attendant challenges which must be addressed. One of these challenges is voltage stability issues. This paper therefore explores the applications of FACTS devices for voltage stability improvement and points out the future research direction in the area of voltage stability enhancement by FACTS devices for modern power grids characterized by increasing levels of renewable energy penetration.

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A review on damping of torsional interactions using VSC based FACTS and subsynchronous damping controller

Cited by 16 publications

References 42 publications

Torsional Vibrations Control of Double‐Ended Driving and Dual‐Excited Turbo‐Generator Shafts Based on Multi‐Index Nonlinear Control

Torsional Vibrations Control of Double‐Ended Driving and Dual‐Excited Turbo‐Generator Shafts Based on Multi‐Index Nonlinear Control

Study on torsional vibration suppression effect of double‐ended driving turbo‐generator shafting structure

Application and control of flexible alternating current transmission system devices for voltage stability enhancement of renewable-integrated power grid: A comprehensive review

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