An equivalent synchronous generator model for current-controlled voltage source converters considering the dynamic of phase-locked-loop

Tan, Shulong; Lv, Qing; Geng, Hua; Yang, Geng

doi:10.1109/iecon.2016.7792983

Cited by 7 publications

(6 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Several studies have been reported in the literature regarding control of power converters under large-scale integration of RERs into the power grid [27][28][29][30][31][32][33][34][35][36][37][38][39]. In [27], a virtual synchronous generator (VSG) was proposed to make an emulation strategy [28,29] for the improvement of the swing equation damping power.…”

Section: Introductionmentioning

confidence: 99%

“…Such emulation causes the converters to have a synchronized behavior in parallel connections under both grid-connected and islanded microgrid operating modes. By employing the PLL dynamic of the voltage source converters (VSC), an equivalent SG model has been proposed in [35] for the current-controller-based VSCs. An emulation-based control method of SG consisting of both inner and outer control loops was proposed for a VSC-High Voltage Direct Current (HVDC) in [36], for which the reference frequency value was obtained by an inertia element and scheduled power modulation was utilized as a secondary frequency regulation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synchronous Resonant Control Technique to Address Power Grid Instability Problems Due to High Renewables Penetration

et al. 2018

View full text Add to dashboard Cite

This paper presents a synchronous resonant control strategy based on the inherent characteristics of permanent magnet synchronous generators (PMSG) for the control of power converters to provide stable operating conditions for the power grid under high penetration of renewable energy resources (RERs). The proposed control technique is based on the small signal linearization of a dynamic model with grid specifications, load-current-based voltages, and power converter currents. A combination of the linearized dynamic model with the PMSG swing equation and resonant controller leads to a control technique with synchronous features and appropriate inertia for the control of converter-based power generators. As the main contribution of this work, an extra functionality is proposed in the control loop of the proposed model to solve the inherent inconveniences of conventional synchronous generators. Also, a comprehensive collaboration between interfaced converter specifications and PMSG features is achieved as another contribution of the proposed control technique, and this can guarantee accurate performance under various conditions. A current perturbation curve is introduced to assess the variations of the grid frequency and voltage magnitude under operation of the interfaced converters controlled by the proposed control technique. Moreover, by taking into account the load-based voltages, the effects of the current perturbation components are investigated. The proposed model is simulated in MATLAB/Simulink environment to verify the high performance of the proposed control technique over the other existing control methods.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synchronous Resonant Control Technique to Address Power Grid Instability Problems Due to High Renewables Penetration

et al. 2018

View full text Add to dashboard Cite

show abstract

“…In [20], the static synchronous generator (SSG) model was proposed to effectively analyze the inertia and damping characteristics of the grid-tied inverter system based the double closed-loop control. Until now, based on the SSG model, the effect of the phase-locked loop on the dynamic characteristics of the inverter system was investigated [21,22]. Meanwhile, a novel inertia control method for the grid-tied inverter system has been put forward [23].…”

Section: Introductionmentioning

confidence: 99%

Inertial and Damping Characteristics of DC Distributed Power Systems Based on Frequency Droop Control

et al. 2018

View full text Add to dashboard Cite

With high penetration of renewable energy, DC distributed power systems (DDPSs) need to improve the inertia response and damping capacity of the power grid. The effects of main circuit parameters and control factors on the inertia, damping and synchronization of the DDPS were studied in this paper. Firstly, the dynamic model of DDPSs based on frequency droop control is established in the DC voltage control (DVC) timescale. Then, a static synchronous generator (SSG) model is used to analyze the parameters that affect the inertial level, damping effect and synchronization capability of the DDPS. The analysis results show that an optimal design of the frequency droop coefficient and proportional integral (PI) parameters of the DC bus voltage control loop can equivalently change the characteristics of inertia and damping when the frequency droop control strategy is applied to the DC/DC converter and the DC bus voltage control strategy is used in the grid-tied inverter. Simulation results verify the correctness of the conclusions. This paper helps to design an effective control strategy for DDPSs to enhance the inertial level and damping effect of the power grid and to improve the stable operation capability of renewable energy systems.

show abstract

“…INTRODUCTION Using renewable energy resources has been attracted more attention because of their superiority especially environmental reasons and renewability features in recent years [1]- [3]. Mimicking the synchronous generator (SG) features which are combined with various novel control techniques designed for power converters in renewable energy resources applications [4] has been considered recently to increase the stability margin of the power grid under high penetration of renewable energy resources [5].…”

mentioning

confidence: 99%

Angular Frequency Dynamic-Based Control Technique of a Grid-Interfaced Converter Emulated by a Synchronous Generator

Mehrasa¹,

Sepehr

Pouresmaeil

et al. 2018

2018 International Conference on Smart Energy Systems and Technologies (SEST)

View full text Add to dashboard Cite

In this paper, an angular frequency dynamic-based control technique is proposed to control interfaced converters between the power grid and renewable energy sources. The proposed control technique can guarantee a stable operation of power grid under high penetration of renewable energy resources through providing the required inertia properties. The synchronous generator characteristics combined with the basic dynamic model of the interfaced converter can shape a second order derivative of the grid angular frequency consisted of converter power and virtual mechanical power derivative with embedded virtual inertia to prevent from the power grid instability as well as generate active and reactive power with appropriate inertia. Simulation analyses are performed in Matlab/Simulink to confirm high performance of the proposed control technique.

show abstract

An equivalent synchronous generator model for current-controlled voltage source converters considering the dynamic of phase-locked-loop

Cited by 7 publications

References 25 publications

Synchronous Resonant Control Technique to Address Power Grid Instability Problems Due to High Renewables Penetration

Synchronous Resonant Control Technique to Address Power Grid Instability Problems Due to High Renewables Penetration

Inertial and Damping Characteristics of DC Distributed Power Systems Based on Frequency Droop Control

Angular Frequency Dynamic-Based Control Technique of a Grid-Interfaced Converter Emulated by a Synchronous Generator

Contact Info

Product

Resources

About