A supervisory MPC for synchronverter

Vetoshkin, Lavr; Müller, Zdeněk

doi:10.1109/epe51172.2020.9269232

Cited by 2 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this regard, root locus analysis can be applied as a powerful method in order to clarify the frequency stability constraints based on the converter controller parameters' variations. Since for stability studies, eigenvalue analysis is performed on the denominator of the proposed transfer function, the quadratic equation of den(s) represented in (19) will be studied hereafter.…”

Section: Small Signal Stability Studies Based On the Proposed Transfe...mentioning

confidence: 99%

“…In order to evaluate the frequency stability of the system based on the variations of the virtually emulated inertia and damping factors of the converter ( c J and c D ), the root locus analysis (19) has been demonstrated in Fig. 4a considering the 0 100  = rad/s, ' In addition to that, it is clear that each of the operating points with particular c J and c D values will eventually result in a dynamic frequency response with specific damping ratio (  ) and natural frequency ( n  ) characteristics.…”

Section: Small Signal Stability Studies Based On the Proposed Transfe...mentioning

confidence: 99%

“…On the other hand, various studies propose detailed emulations of SG characteristics in the converter control structure [18]. Despite representing similar behavior to SGs, these models tend to add unnecessary complexity and computational burdens to the controller [13,19]. In this regard, other topologies have been employed based on the swing equation principles in order to provide the desired frequency support characteristics [20,21].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Frequency stability improvements based on automatic adjustment of synchronous power controller parameters

Shahnazian

Adabi

Pouresmaeil³

2022

Electr Eng

View full text Add to dashboard Cite

This paper presents an automatic parameter adjustment technique for synchronous power controllers (SPC) in order to improve the dynamic frequency stability of the low inertia power systems. The proposed control method is based on a novel transfer function in which various grid and converter controller parameters involved in the stability studies have been thoroughly included. As the main contribution of this paper, the eigenvalue trajectory of the proposed transfer function has been determined, considering the variations of both virtual inertia and damping control parameters simultaneously. Furthermore, any corresponding operating point on this eigenvalue trajectory can be specified based on the desired frequency response characteristics of the system. Therefore, the inertia and damping coefficients of the converter controller can be simultaneously adjusted through the proposed controller algorithm as the second contribution of this paper. Also, as another novelty of this paper, it is demonstrated through analytical and theoretical studies that both damping ratio and natural frequency characteristics of a dynamic frequency response have profound effects on the controller parameter value adjustments. Simulation results have been employed in MATLAB/Simulink to confirm the performance of the proposed controller regarding the appropriate parameter value adjustments, development of the desired dynamic frequency responses, and the prominent interactions between the frequency response characteristics and the converter controller parameters.

show abstract

Section: Small Signal Stability Studies Based On the Proposed Transfe...mentioning

confidence: 99%

Section: Small Signal Stability Studies Based On the Proposed Transfe...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Frequency stability improvements based on automatic adjustment of synchronous power controller parameters

Shahnazian

Adabi

Pouresmaeil³

2022

Electr Eng

View full text Add to dashboard Cite

show abstract

A Comparative Analysis of a Power System Stability with Virtual Inertia

Vetoshkin

Müller

2021

Energies

View full text Add to dashboard Cite

The paper investigates the stability of a power system with synchronverters. A synchronverter is a control strategy for voltage source converters that introduces virtual inertia by mimicking synchronous machines. The authors picked a commonly known IEEE 9 bus and IEEE 39 bus test case systems for the test case studies. The paper presents the power system’s modal analysis with Voltage Source Converters (VSCs) controlled as synchronverters, vector control, or Rate of Change of Frequency-based Virtual Synchronous Generator, thus comparing different approaches to VSC control. The first case study compares selected control algorithms, the IEEE 9 bus system, with one VSC in the paper. The results demonstrate the benefits of synchronverters over other control strategies. The system with synchronverters has a higher minimal damping ratio, which is proven to be the case by numerical simulations. In the second case study, the effects of virtual inertia placement were investigated. The computations showed that placement is indeed important, however, the control strategy is as important. Besides, the system with synchronverters exhibits better stability characteristics. The paper demonstrates that the application of synchronverters is feasible and can meet the demand for algorithms that bring the benefits of virtual inertia.

show abstract

A supervisory MPC for synchronverter

Cited by 2 publications

References 4 publications

Frequency stability improvements based on automatic adjustment of synchronous power controller parameters

Frequency stability improvements based on automatic adjustment of synchronous power controller parameters

A Comparative Analysis of a Power System Stability with Virtual Inertia

Contact Info

Product

Resources

About