Performance test of a PQ universal compensator through Control Hardware in the Loop simulation

Belloni, Federico; Chiumeo, R.; Gandolfi, Chiara; Villa, Andrea

doi:10.1109/iccep.2017.8004734

Cited by 6 publications

(11 citation statements)

References 8 publications

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“…The DC side of the bridge is connected to two capacitors connected in series, whose central point is used as neutral point for the circuit. An adaptive hysteresis current band modulation with fixed switching frequency has been considered [1], [2] and [4]. This device is able to satisfy the following compensations: (i) active load filtering, reactive and active power variations compensation, (ii) island operation of sensitive loads, after the detection of a PQ event in the grid and thanks to the static switch operation and a battery storage system, connected to the DC side of the converter.…”

Section: B Shunt Compensatormentioning

confidence: 99%

“…and Figure 8. 4 ): to limit the line current at 580 A (value defined in accordance with the capability of the device and with the protection relay thresholds), the series compensator injects a voltage to obtain a downstream voltage equal to: 3 Even if grid protections haven't been considered, the fault duration is fixed to consider the transient behavior during the network voltage restoration. 4 The brown line refers to island operating condition.…”

Section: B Low Voltage Grid Faultmentioning

confidence: 99%

“…The scope of this activity, evolution of what has been described in [1], [2], [3] and [4], is the study through digital simulations of the possibilities of simultaneous use in the network of PQ compensation devices based on power electronics and their coordination (solution identified as Open Unified Power Quality Conditioner -UPQC) in order to improve PQ of Low Voltage (LV) distribution networks.…”

Section: Introductionmentioning

confidence: 99%

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Logical coordination between LV compensation devices to provide different PQ levels in the distribution network

Shadmehr

Gandolfi

2018

2018 18th International Conference on Harmonics and Quality of Power (ICHQP)

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The increasing use of grid connected power electronic systems generates a set of interference phenomena between those devices and distribution grids. Power electronic systems are both sensitive to voltage disturbances and sources of disturbances, such as current harmonic distortion, voltages unbalance and flicker. Such phenomena motivated the study of a system named Open Unified Power Quality Conditioner, based on power electronic converters, used for the improvement of the Power Quality level in low voltage distribution grids. The study, mainly theoretical, has addressed the issue of compensators coordination under different operating conditions.

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Section: B Shunt Compensatormentioning

confidence: 99%

Section: B Low Voltage Grid Faultmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Logical coordination between LV compensation devices to provide different PQ levels in the distribution network

Shadmehr

Gandolfi

2018

2018 18th International Conference on Harmonics and Quality of Power (ICHQP)

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“…These events are characterized in terms of residual voltage (RV) and dip duration (DD) as defined by the EN 50160. For these reasons, different works dealing with many aspects concerning voltage dips can be found in literature, regarding compensating solutions [8][9][10], impact on customers [11][12][13][14] and monitoring systems [15,16]. Moreover, in [17,18] adequate indices for quantifying their severity have been proposed.…”

Section: Introductionmentioning

confidence: 99%

Advanced Machine Learning Functionalities in the Medium Voltage Distributed Monitoring System QuEEN: A Macro-Regional Voltage Dips Severity Analysis

et al. 2021

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This paper presents the integration of advanced machine learning techniques in the medium voltage distributed monitoring system QuEEN. This system is aimed to monitor voltage dips in the Italian distribution network mainly for survey and research purposes. For each recorded event it is able to automatically evaluate its residual voltage and duration from the corresponding voltage rms values and provide its “validity” (invalidating any false events caused by voltage transformers saturation) and its “origin”(upstream or downstream from the measurement point) by proper procedures and algorithms (current techniques). On the other hand, in the last years new solutions have been proposed by RSE to improve the assessment of the validity and origin of the event: the DELFI classifier (DEep Learning for False voltage dips Identification) and the FExWaveS + SVM classifier (Features Extraction from Waveform Segmentation + Support Vector Machine classifier). These advanced functionalities have been recently integrated in the monitoring system thanks to the automated software tool called QuEEN PyService. In this work, intensive use of these advanced techniques has been carried out for the first time on a significant number of monitored sites (150) starting from the data recorded from 2018 to 2021. Besides, the comparison between the results of the innovative technique (validity and origin of severe voltage dips) with respect to the current ones has been performed at the macro-regional level too. The new techniques are shown to have a not negligible impact on the severe voltage dips number and confirm a non-homogenous condition among the Italian macro-regional areas.

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“…PQ events have been classified in standard and several PQ conditioning apparatuses have been introduced in order to deal with different phenomena [3]. Installing a single device to deal with single event is not the best idea so, researchers are looking for multifunctional strategies in specific solutions [4] or even more recently to an universal PQ compensator in order to cover most of the PQ events using a single solutions [5]. Among PQ events, voltage sags and rms voltage drifts have been reported as most significant and frequent ones in both MV and LV distribution systems [6], [7].…”

Section: Introductionmentioning

confidence: 99%

Investigation on different control methods for single-phase DVC

Hafezi

Faranda

Gandolfi

et al. 2018

2018 18th International Conference on Harmonics and Quality of Power (ICHQP)

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Power Quality (PQ) conditioning in LV distribution networks is an increasing concern within modern power system and Smart Grid systems. Several phenomena have classified in standard, among those, voltage sags and rms voltage drifts have been reported as most significant and frequent ones in both MV and LV distribution systems. Several solutions have been proposed to deal with these voltage disturbances. Dynamic Voltage Restorer (DVR) and Dynamic Voltage Conditioner (DVC) are the most promising solutions. Controlling these series connected devices is a challenge especially in single-phase schema which is an appreciated solution for Distribution System Operator (DSO). This paper investigates difference control strategies for single-phase DVC system. Control methods are explained in detail and MATLAB based simulation results are reported. Investigated control methods performance dealing with example voltage drop event have been reported.

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Performance test of a PQ universal compensator through Control Hardware in the Loop simulation

Cited by 6 publications

References 8 publications

Logical coordination between LV compensation devices to provide different PQ levels in the distribution network

Logical coordination between LV compensation devices to provide different PQ levels in the distribution network

Advanced Machine Learning Functionalities in the Medium Voltage Distributed Monitoring System QuEEN: A Macro-Regional Voltage Dips Severity Analysis

Investigation on different control methods for single-phase DVC

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