A Grid Connected Inverter with Virtual Synchronous Generator Model of Algebraic Type

Hirase, Yuko; Abe, Kazuhiro; Sugimoto, K.; Shindo, Yuji

doi:10.1541/ieejpes.132.371

Cited by 57 publications

(41 citation statements)

References 5 publications

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“…are adapted from [4], [5], [7], [8] and [22], [23] respectively, into a common framework for comparison. Linearized smallsignal state-space models of both alternatives are also developed, and their validity is verified by time-domain simulations.…”

Section: Ieee Transactions On Industrial Electronicsmentioning

confidence: 99%

“…phasor-based) representation of the SM stator impedance in the SRRF. This is equivalent to setting the current derivative in (2) to zero, resulting in the quasi-stationary stator current [22], [23]:…”

Section: Quasi-stationary Electrical Sm Modelmentioning

confidence: 99%

“…Thus, the overall control systems presented in the literature are not directly comparable. For instance the reference frame used for the VSM implementation, the applied current control loops and also the implementation of the virtual swing equations differ between the control systems in [4], [5], [7], [8] and [22], [23], respectively. To ensure a fair comparison that can reveal the main implications of using DEM-and QSEM-based approaches for providing current references, the VSM implementations from the literature have been adapted to a common implementation, as fully revealed in the following sub-sections.…”

Section: IIImentioning

confidence: 99%

“…Indeed, the first proposals of VSM-based control included modelling of the dynamic electrical equations of the SM [1], [3]- [5], [7]- [14]. However, implementations based on a quasi-stationary representation of the SM stator windings have recently been proposed in [22], [23]. The quasi-stationary approach introduces a further simplification of the modelling, since all transient electrical dynamics of the emulated SM are neglected.…”

mentioning

confidence: 99%

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Evaluation of Virtual Synchronous Machines With Dynamic or Quasi-Stationary Machine Models

D’Arco

Suul

2017

IEEE Trans. Ind. Electron.

209

177

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Abstract-This paper presents a comparison of the small-signal stability properties for Virtual Synchronous Machines (VSMs) with dynamic and quasi-stationary representation of the internal Synchronous Machine (SM) model. It is shown that the dynamic electrical equations may introduce poorly damped oscillations when realistic stator impedance values for high power SMs are used. The quasi-stationary implementation is less sensitive to the impedance of the virtual machine model, but depends on filtering of the measured d-and q-axis components of the ac-side voltage to avoid instability or poorly damped oscillations. It is demonstrated how both implementations can be made stable and robust for a wide range of grid impedances. However, the dynamic electrical model depends on a high virtual resistance for effectively damping internal oscillations associated with dccomponents in the ac currents during transients. Thus, when using SM parameters with low virtual stator resistance for decoupling the active and reactive power control, the quasi-stationary VSM implementation is preferable.

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Section: Ieee Transactions On Industrial Electronicsmentioning

confidence: 99%

Section: Quasi-stationary Electrical Sm Modelmentioning

confidence: 99%

Section: IIImentioning

confidence: 99%

mentioning

confidence: 99%

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Evaluation of Virtual Synchronous Machines With Dynamic or Quasi-Stationary Machine Models

D’Arco

Suul

2017

IEEE Trans. Ind. Electron.

209

177

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“…In addition to the active power consideration of grid-tie applications, VSG-based STATCOM for grids with a high penetration of renewable energy is evaluated and modeled in [12]. Virtual synchronous machine-based power control in active rectifiers for micro grids is developed and analyzed in detail in [13], and a single phase VSG application is discussed in [14].…”

Section: Introductionmentioning

confidence: 99%

A Novel Three-Phase Four-Wire Grid-Connected Synchronverter that Mimics Synchronous Generators

Tan¹,

Lv²,

Xu³

et al. 2016

Journal of Power Electronics

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Voltage and frequency stability issues occur in existing centralized power system due to the high penetration of renewable energy sources, which decrease grid absorptive capacity of them. The grid-connected inverter that mimics synchronous generator characteristics with inertia characteristic is beneficial to electric power system stability. This paper proposed a novel three-phase four-wire grid-connected inverter with an independent neutral line module that mimics synchronous generators. A mathematical model of the synchronous generator and operation principles of the synchronverter are introduced. The main circuit and control parameters design procedures are also provided in detail. A 10 kW prototype is built and tested for further verification. The primary frequency modulation and primary voltage regulation characteristics of the synchronous generator are emulated and automatically adjusted by the proposed circuit, which helps to supports the grid.

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Characteristics of Parallel Operation of Inverter‐Type Distributed Generators Operated by a Virtual Synchronous Generator

Sakimoto

Miura

Ise

2015

Electrical Engineering Japan

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SUMMARYThe capacity of distributed generators (DGs) connected to a grid by inverters is growing. The inverters are generally controlled by a phase locked loop (PLL) in order to achieve synchronization with the power system frequency. They cannot have synchronous power. Power systems become unstable if the capacity of the inverter-type DGs is increased. The concept of controlling inverters to behave like a synchronous generator is studied in this paper. The result is referred to as a "virtual synchronous generator" (VSG). The VSG has synchronous power. Power systems become stable as a result of using the VSG. The VSG is useful in the parallel operation of DGs. The VSG can synchronize with other VSGs, synchronous generators, or the grid. In this paper, a method for the synchronous operation of a VSG is studied, and experimental results on a VSG running in parallel with a synchronous generator and other VSGs are presented.

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A Grid Connected Inverter with Virtual Synchronous Generator Model of Algebraic Type

Cited by 57 publications

References 5 publications

Evaluation of Virtual Synchronous Machines With Dynamic or Quasi-Stationary Machine Models

Evaluation of Virtual Synchronous Machines With Dynamic or Quasi-Stationary Machine Models

A Novel Three-Phase Four-Wire Grid-Connected Synchronverter that Mimics Synchronous Generators

Characteristics of Parallel Operation of Inverter‐Type Distributed Generators Operated by a Virtual Synchronous Generator

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