An Adaptive Prefiltering Method to Improve the Speed/Accuracy Tradeoff of Voltage Sequence Detection Methods Under Adverse Grid Conditions

Matas, J.; Castilla, Miguel; Miret, Jaume; Vicuña, Luis García de; Guzmán, Ramón

doi:10.1109/tie.2013.2274414

Cited by 213 publications

(164 citation statements)

References 44 publications

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“…The new positive and negative reactive power references are derived from (38) and (39). Due to the dynamic behaviour of sequence extractors, the settling time in perturbed situations last one grid cycle approximately [42]. For this reason, the power reference block is triggered once per grid cycle to compute the new values of Q + and Q − , which remain constant in the flow diagram until the new update.…”

Section: Reactive Power Referencesmentioning

confidence: 99%

Reactive Power Control for Distributed Generation Power Plants to Comply With Voltage Limits During Grid Faults

Camacho

Castilla

Miret

et al. 2014

IEEE Trans. Power Electron.

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173

117

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Section: Reactive Power Referencesmentioning

confidence: 99%

Reactive Power Control for Distributed Generation Power Plants to Comply With Voltage Limits During Grid Faults

Camacho

Castilla

Miret

et al. 2014

IEEE Trans. Power Electron.

Self Cite

173

117

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“…This effect is due to the fact that the impedance seen at the output of the converters has some resistive part (see the transformers data in Table 2), and active currents produce voltage increments (as stated in (15) and (16)). At t = 0 s the sag begins and after a computation delay of 0.01 s due to the sequences extractor [53] the sag is detected. Until t = 0.125 s the sag control is deliberately inactive to clearly show its behavior without any control action.…”

Section: Resultsmentioning

confidence: 99%

“…To accomplish this objective a sequence extractor should be used to estimate the sequence voltages from the SRF voltage vector [52,53]. Afterwards, when the sequence voltages are known, the amplitudes of the positive and negative sequences can be calculated on-line using:…”

Section: Network-forming Controllermentioning

confidence: 99%

A Flexible Experimental Laboratory for Distributed Generation Networks Based on Power Inverters

et al. 2017

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Abstract:In the recently deregulated electricity market, distributed generation based on renewable sources is becoming more and more relevant. In this area, two main distributed scenarios are focusing the attention of recent research: grid-connected mode, where the generation sources are connected to a grid mainly supplied by big power plants, and islanded mode, where the distributed sources, energy storage devices, and loads compose an autonomous entity that in its general form can be named a microgrid. To conduct a successful research in these two scenarios, it is essential to have a flexible experimental setup. This work deals with the description of a real laboratory setup composed of four nodes that can emulate both scenarios of a distributed generation network. A comprehensive description of the hardware and software setup will be done, focusing especially in the dual-core DSP used for control purposes, which is next to the industry standards and able to emulate real complexities. A complete experimental section will show the main features of the system.

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“…The input signals to this diagram are the αβ domain voltages v α and v β while the outputs are the gate signals for the power switches s i (see Figure 2). The GCCS control schemes have in common a voltage sequence extractor [37], a current control loop [38] and a space vector modulator (SVM). The main difference between them relies in the way the reference currents are generated.…”

Section: Gccs Control Schemesmentioning

confidence: 99%

Performance Comparison of Grid-Faulty Control Schemes for Inverter-Based Industrial Microgrids

Camacho

Castilla

Canziani³

et al. 2017

Energies

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Several control schemes specifically designed to operate inverter-based industrial microgrids during voltage sags have been recently proposed. This paper first classifies these control schemes in three categories and then performs a comparative analysis of them. Representative control schemes of each category are selected, described and used to identify the main features and performance of the considered category. The comparison is based on the evaluation of several indexes, which measure the power quality of the installation and utility grid during voltage sags, including voltage regulation, reactive current injection and transient response. The paper includes selected simulation results from a 500 kVA industrial microgrid to validate the expected features of the considered control schemes. Finally, in view of the obtained results, the paper proposes an alternative solution to cope with voltage sags, which includes the use of a static compensator in parallel with the microgrid. The novelty of this proposal is the suitable selection of the control schemes for both the microgrid and the static compensator. The superior performance of the proposal is confirmed by the analysis of the quality indexes. Its practical limitations are also revealed, showing that the topic studied in this paper is still open for further research.

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An Adaptive Prefiltering Method to Improve the Speed/Accuracy Tradeoff of Voltage Sequence Detection Methods Under Adverse Grid Conditions

Cited by 213 publications

References 44 publications

Reactive Power Control for Distributed Generation Power Plants to Comply With Voltage Limits During Grid Faults

Reactive Power Control for Distributed Generation Power Plants to Comply With Voltage Limits During Grid Faults

A Flexible Experimental Laboratory for Distributed Generation Networks Based on Power Inverters

Performance Comparison of Grid-Faulty Control Schemes for Inverter-Based Industrial Microgrids

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