Modeling of a virtual synchronous machine-based grid-interface converter for renewable energy systems integration

Cvetkovic, Igor; Boroyevich, Dushan; Burgos, Rolando; Li, Chi; Jaksic, Marko; Mattavelli, Paolo

doi:10.1109/compel.2014.6877195

Cited by 47 publications

(25 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By revealing the inherent PLL feature of the traditional SG, as shown in Fig. 15, a special PLL imitating the inherent phase-locking dynamic of SG is applied, instead of the conventional PLL with proportional-integral (PI) controller [49].…”

Section: Sg-equivalent Model Of Vs/cc-vscmentioning

confidence: 99%

Modeling framework of voltage-source converters based on equivalence with synchronous generator

Tan

Geng

Yang

et al. 2018

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

Along with the increasing penetration of distributed generation with voltage-source converters (VSCs), there are extensive concerns over the potential virtual rotor angle stability, which is characterized by oscillations of power and frequency during the dynamic process of synchronization in the grid. Several control strategies have been developed for VSCs to emulate rotating inertia as well as damping of oscillations. This paper classifies these strategies and provides a small-signal modeling framework including all kinds of VSCs in different applications for virtual rotor angle stability. A unified perspective based on the famous Phillips-Heffron model is established for various VSCs. Thus, the concepts of equivalent inertia and the synchronizing and damping coefficients in different VSCs are highlighted, based on the similarities with the synchronous generator (SG) system in both physical mechanisms and mathematical models. It revealed the potentiality of various VSCs to achieve equivalence with the SG. This study helps promote the unity of VSCs and traditional SGs in both theories and methods for analyzing the dynamic behavior and enhancing the stability. Finally, future research needs and new perspectives are addressed.

show abstract

Section: Sg-equivalent Model Of Vs/cc-vscmentioning

confidence: 99%

Modeling framework of voltage-source converters based on equivalence with synchronous generator

Tan

Geng

Yang

et al. 2018

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

show abstract

“…It is the conversion ratio between the current angle of the CC-VSC and the traditional power angle, as shown in (5). From the synchronous torque items in (24), it can be observed that there is a difference between the voltage source, namely the master SG, and the current source, namely the CC-VSC. The reason is that there is distinction between their synchronizing mechanisms.…”

Section: Model Application In a Two-machine Power Systemmentioning

confidence: 99%

“…For small-signal analysis of the two-machine power system, the corresponding linearized model which is also known as the incremental equation can be obtained in (24).…”

Section: Model Application In a Two-machine Power Systemmentioning

confidence: 99%

“…The PLL dynamic plays a key role in the energy conversion process in the electromechanical time scale [20][21][22][23][24]. The current tracking dynamic may in 300*400 Hz [26], and it can be ignored in the electromechanical dynamic investigation.…”

Section: Introductionmentioning

confidence: 99%

“…The interactive mechanism between the CC-VSC and the SGs has not been addressed. Some researches point out that the dynamic of PLL can significantly affect the system synchronization and stability [20][21][22][23][24], especially in the weak-grid system. As the penetration increasing, the effect of CC-VSCs on system stability becomes more prominent.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Phillips-Heffron model for current-controlled power electronic generation unit

Tan

Geng

Yang

2017

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

This paper presents a Phillips-Heffron model for the generation unit with current-controlled (CC) voltage source converter (VSC) as the interface. A concept of current angle is put forward for the CC-VSC, and the relationship between the current angle and the power angle is also quantified. Based on the current angle, a PhillipsHeffron model is established for the generation unit with CC-VSC, considering the dynamic of phase-locked-loop (PLL) in the weak grid. The model demonstrates that small-signal dynamics of the generation unit is similar to that of the traditional synchronous generator (SG) which is characterized by the electromechanical swing equations. Then the dynamics can be depicted by the famous inertia, synchronizing and damping coefficients. Small-signal stability of a CC-VSC-based single machine infinite bus system is analyzed by means of the traditional theory of power system. Based on the relationship between the current angle and the power angle, the Phillips-Heffron model of the CC-VSC is also used in stability analysis of multimachine power system, and parameter optimizations of the CC-VSC are also studied for stability improvement.

show abstract

A New Trend in Control of Renewable Power Systems Based on Virtual Synchronous Generator

Magdy

Shabib

Elbaset

et al. 2019

Renewable Power Systems Dynamic Security

View full text Add to dashboard Cite

Modeling of a virtual synchronous machine-based grid-interface converter for renewable energy systems integration

Cited by 47 publications

References 21 publications

Modeling framework of voltage-source converters based on equivalence with synchronous generator

Modeling framework of voltage-source converters based on equivalence with synchronous generator

Phillips-Heffron model for current-controlled power electronic generation unit

A New Trend in Control of Renewable Power Systems Based on Virtual Synchronous Generator

Contact Info

Product

Resources

About