Performance of inverter interfaced distributed generation

Wall, S.

doi:10.1109/tdc.2001.971368

Cited by 36 publications

(18 citation statements)

References 1 publication

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“…Voltage controlled inverters can both operate in parallel to the mains (by usually defining the voltage amplitude and phase through a real and reactive power control loop) and on a stand alone system (by working at constant terminal voltage and frequency). Anyway a signal must be available for informing the controller about the operating condition [6]. The parallel operation of an inverter to other sources and even to other inverters is today performed through a centralised control system.…”

Section: A Inverter Control Systemsmentioning

confidence: 99%

Storage systems for the transition towards active and smart distribution systems

Barsali¹,

Giglioli²,

Donato³

et al. 2008

REPQJ

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Abstract. The paper presents the criteria adopted for designing a storage system to be used in a distribution grid where several distributed resources exist. The purpose of introducing storage in distribution is to enable the operators to manage the grid as a really active system. A droop based control system has been designed and tested through simulations. The results are currently being used to specify and build a prototype device to be installed in a test facility where Enel will develop a "smart grid".

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Section: A Inverter Control Systemsmentioning

confidence: 99%

Storage systems for the transition towards active and smart distribution systems

Barsali¹,

Giglioli²,

Donato³

et al. 2008

REPQJ

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“…In contrast to conventional generators, no tried-and-tested analytical fault models exist for inverters, forcing protection engineers to employ complex and time consuming full time domain models of the inverter and its control systems [3], [4]. The fault response of an inverter is dominated by its control system which actively limits the available fault current to safeguard the semiconductor switches [5], [6]. This limit can be increased by over-engineering the inverter hardware and is typically set at twice the nominal current rating [5].…”

Section: Introductionmentioning

confidence: 99%

“…The fault response of an inverter is dominated by its control system which actively limits the available fault current to safeguard the semiconductor switches [5], [6]. This limit can be increased by over-engineering the inverter hardware and is typically set at twice the nominal current rating [5]. If a substantial amount of conventional generation is replaced by IIDG, or indeed if the IIDG is the only power source as in the case of an islanded network, the resulting low fault level can interfere with the proper operation of the incumbent over-current based protection system [7], [8], [9].…”

Section: Introductionmentioning

confidence: 99%

Fault models of inverter-interfaced distributed generators: Experimental verification and application to fault analysis

Plet

Brucoli

McDonald

et al. 2011

2011 IEEE Power and Energy Society General Meeting

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Abstract-This paper investigates the fault behaviour of inverter-interfaced distributed generators in stand-alone networks. It is shown that the rapid transient response of the inverter control system allows its fault behaviour to be characterised by quasi steady-state equivalent fault models. The choice of inverter control strategy, control reference frame and the method of active current limiting dominate the fault response, especially in case of unbalanced faults. The proposed fault models can be directly incorporated in conventional fault analysis methods of which an example is given for a faulty islanded microgrid. Model validation is carried out by comparing experimental measurements with results of analytical fault analysis using the developed fault models and PSCAD time domain simulations.

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“…The concept is particularly interesting when different kinds of energy resources are available, such as photovoltaic panels, fuel cells, or speed wind turbines [2], [3]. Most part of these resources need power electronic interfaces to make up local ac grids [4], [5]. This way, inverters or ac-to-ac converters are connected to an ac common bus with the aim to share properly the disperse loads connected to the local grid [6].…”

mentioning

confidence: 99%

A Wireless Controller to Enhance Dynamic Performance of Parallel Inverters in Distributed Generation Systems

Guerrero

Vicuña

Matas

et al. 2004

IEEE Trans. Power Electron.

907

451

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Abstract-This paper presents a novel control strategy for parallel inverters of distributed generation units in an ac distribution system. The proposed control technique, based on the droop control method, uses only locally measurable feedback signals. This method is usually applied to achieve good active and reactive power sharing when communication between the inverters is difficult due to its physical location. However, the conventional voltage and frequency droop methods of achieving load sharing have a slow and oscillating transient response. Moreover, there is no possibility to modify the transient response without the loss of power sharing precision or output-voltage and frequency accuracy. In this work, a great improvement in transient response is achieved by introducing power derivative-integral terms into a conventional droop scheme. Hence, better controllability of the system is obtained and, consequently, proper transient performance can be achieved. In addition, an instantaneous current control loop is also included in the novel controller to ensure proper sharing of harmonic components when supplying nonlinear loads. Simulation and experimental results are presented to prove the validity of this approach, which shows excellent performance as opposed to the conventional one.

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Performance of inverter interfaced distributed generation

Cited by 36 publications

References 1 publication

Storage systems for the transition towards active and smart distribution systems

Storage systems for the transition towards active and smart distribution systems

Fault models of inverter-interfaced distributed generators: Experimental verification and application to fault analysis

A Wireless Controller to Enhance Dynamic Performance of Parallel Inverters in Distributed Generation Systems

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