Design and implementation of voltage source converter excitation system to improve power system stability

Zhu, Chen; Lu, Jiming; Mao, Chengxiong; Zhou, Yuhao; Wang, Dan

doi:10.1109/ias.2015.7356790

Cited by 8 publications

(10 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It indicates that both MFLC and proposed NAC can ensure damping performance under different operation points, while damping ratio of the linear control (AVR+PSS) changes with the operation point. Moreover, FES can provide better damping performance than the conventional static excitation system, though results of FES with linear control is not presented in this paper [13].…”

Section: Simulation Resultsmentioning

confidence: 99%

Perturbation estimation based nonlinear adaptive control of VSC flexible excitation system

Yang

Zeng

Yin

et al. 2022

IET Generation Trans & Dist

View full text Add to dashboard Cite

A new type of flexible excitation system (FES) is proposed by using fully‐controlled power electronic devices such as IGBTs to replace the half controlled devices in the conventional static excitation system, which has the merit of independent control of rotor angle and terminal voltage of the synchronous generator. This paper proposes nonlinear adaptive control (NAC) strategies for synchronous generator with FES in a single machine infinite bus system. External disturbances and the uncertainties of all parameters as well as modelling are defined as lumped perturbation terms and estimated by perturbation observers or state and perturbation observer. The estimated perturbation terms are used to compensate the real perturbations and achieve a model‐independent and robust NAC. Merits of the FES against the conventional static excitation system and effectiveness of the proposed NAC scheme against the accurate model based multi‐variable feedback linearisation control are verified via small‐signal stability analysis and simulation studies. The simulation results have shown that the proposed NAC can achieve superior control performance with less states feedback during a three‐phase short circuit and better robustness against parameter uncertainties, compared with linear control and multi‐variable feedback linearisation control.

show abstract

Section: Simulation Resultsmentioning

confidence: 99%

Perturbation estimation based nonlinear adaptive control of VSC flexible excitation system

Yang

Zeng

Yin

et al. 2022

IET Generation Trans & Dist

View full text Add to dashboard Cite

show abstract

“…Then, the realistic d-axis and q-axis current I d and I q are obtained in (A1). These allow the output signal of the inner current controller in dq-frame to be easily calculated using (3). Finally, the output signal of the inner current controller c a at the relevant harmonic frequency (± f p or ± f n ) can be calculated as shown in (37), which is derived using the convolution relationships in Table 1 and the inverse Park Transform.…”

Section: Proposed Sequence Admittance Modeling For Unbalanced Grid Comentioning

confidence: 99%

“…The three-phase voltage source converter (VSC) is one of the key pieces of equipment to make full use of renewable energy because it can provide a sinusoidal current to the grid and flexible power control [1,2]. However, the stability of the grid-connected VSC will affect the safety and stability of the power system in such a situation [3].…”

Section: Introductionmentioning

confidence: 99%

Modeling method of sequence admittance for three-phase voltage source converter under unbalanced grid condition

Cen

Huang

Zha

2018

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

The admittance is a strong tool for stability analysis and assessment of the three-phase voltage source converters (VSCs) especially in grid-connected mode. However, the sequence admittance is hard to calculate when the VSC is operating under unbalanced grid voltage conditions. In this paper, a simple and direct modeling method is proposed for a three-phase VSC taking the unbalanced grid voltage as a new variable for the system. Then coupling in the three-phase system can be calculated by applying the harmonic linearization method. The calculated admittance of three-phase VSCs is verified by detailed circuit simulations.

show abstract

“…In the static ES for example, in order to provide a higher positive ceiling voltage during the fault ride‐through, an IGBT‐based booster can be used between the traditional VCS and the field winding [2–4]. For the rapid de‐excitation of the WFSM, where a large negative ceiling voltage is required, it is possible to find examples of IGBT‐based buck‐booster [5] or dual‐quadrant choppers [6] supplying the rotor winding.…”

Section: Introductionmentioning

confidence: 99%

“…For the rapid de-excitation of the WFSM, where a large negative ceiling voltage is required, it is possible to find examples of IGBT-based buck-booster [5] or dual-quadrant choppers [6] supplying the rotor winding.…”

Section: Introductionmentioning

confidence: 99%

An experimentally determined field winding model with frequency‐dependent parameters

Felicetti

Abrahamsson

Lundin

2021

IET Electric Power Appl

View full text Add to dashboard Cite

Herein, a set of experimental procedures is presented for determining the main electrical distributed parameters of the field winding in salient pole synchronous machines. It applies to the electrical characterisation of iron‐core power inductors and transformer windings as well, in a range of frequency useful for power electronics applications. A first estimation of the parameters is obtained by forcing the winding into resonance with capacitors of known capacitance. The obtained estimates are then refined through an iterative process, which makes use of the winding natural frequencies. The presented procedures are applied step‐by‐step to the field winding of a 60‐kVA salient pole synchronous generator with solid poles. The distributed parameters model, featured using the outlined procedures, accurately reproduces the winding voltage distribution in a large range of frequency. Finally, it is explored how the interaction between armature and rotor influences the field winding parameters, pointing to the differences of measuring them with the rotor inside or outside the machine bore.

show abstract

Design and implementation of voltage source converter excitation system to improve power system stability

Cited by 8 publications

References 19 publications

Perturbation estimation based nonlinear adaptive control of VSC flexible excitation system

Perturbation estimation based nonlinear adaptive control of VSC flexible excitation system

Modeling method of sequence admittance for three-phase voltage source converter under unbalanced grid condition

An experimentally determined field winding model with frequency‐dependent parameters

Contact Info

Product

Resources

About