A novel AC-AC series voltage compensator without large energy storage elements and using partial power conversion

Li, Chushan; Deng, Yan; Zhao, Yi; Li, Wuhua; He, Xiangning

doi:10.1109/apec.2011.5744583

Cited by 5 publications

(5 citation statements)

References 20 publications

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“…It is worth noting that the inverter of the active filter must be powered. Several solutions were considered, including the option proposed in [35], where an additional diode bridge connected to the input of a charging and rectifying device was installed as a DC The power unit consists of a half-bridge voltage inverter and a matching transformer T 2 (Figure 4). This solution is implemented in the block "current delay of the transformer primary side".…”

Section: Active Filter Based On a Half-bridge Circuit Of A Single-pha...mentioning

confidence: 99%

“…Several solutions were considered, including the option proposed in [35], where an additional diode bridge connected to the input of a charging and rectifying device was installed as a DC It is worth noting that the inverter of the active filter must be powered. Several solutions were considered, including the option proposed in [35], where an additional diode bridge connected to the input of a charging and rectifying device was installed as a DC source. It was decided to power the inverter from the output of the rectifier of the dc_af_sup charging and rectifying device.…”

Section: Active Filter Based On a Half-bridge Circuit Of A Single-pha...mentioning

confidence: 99%

“…The possibility of a transformerless increase in the output voltage relative to the input one in some types of regulators should be noted [25][26][27][28][29][30][31]. A set of such AC voltage regulators was obtained by appropriately adapting known circuits of DC-DC buck-boost regulators for operation in AC circuits [25][26][27][28][29][30][31][32][33][34][35].…”

Section: Active Filter Based On An Ac Voltage Regulatormentioning

confidence: 99%

“…Semiconductor converters, namely AC voltage regulators with the ability to increase the output voltage without a transformer, deserve special research attention [29][30][31]. It is also possible to create new circuits by appropriately adapting known circuits of DC-DC buck-boost regulators for operation in AC circuits [32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Novel Energy-Efficient Converters to Ensure the Required Quality of Electrical Energy

Udovichenko,

Grishanov,

Kosykh

et al. 2023

Symmetry

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This article proposes several solutions for the use of novel AC voltage regulators as electrical energy quality conditioners and for the use of a half-bridge voltage inverter circuit as an active filter. This study was carried out with a real object, and more attention was paid to it. Structural models of electrical energy quality assurance systems, the calculation of control system elements and experimental results are presented. In particular, the use of a half-bridge voltage inverter circuit was considered as a replacement for the passive filter of the battery charger and rectifier device. AC voltage regulators are also used as compensators for higher-current harmonics, namely active filters and reactive power, voltage drop, voltage unbalance and flicker effect compensators. Block diagrams of power quality conditioners are presented, control algorithms are developed and the results of the current high-frequency harmonics compensation, reactive power and signal balancing are presented. The results of an active filter experiment based on the NRT 160.220 charge-rectifier device circuit showed a reduction in ripple of up to 1% with smaller dimensions compared to a passive filter. The control characteristics and external characteristics of the regulators are removed. The dependences of the current THD factor and the power factor are presented depending on the modulation depth for AC voltage regulator circuits used as power quality conditioners.

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Section: Active Filter Based On a Half-bridge Circuit Of A Single-pha...mentioning

confidence: 99%

Section: Active Filter Based On a Half-bridge Circuit Of A Single-pha...mentioning

confidence: 99%

Section: Active Filter Based On An Ac Voltage Regulatormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of Novel Energy-Efficient Converters to Ensure the Required Quality of Electrical Energy

Udovichenko,

Grishanov,

Kosykh

et al. 2023

Symmetry

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“…The capacitors of the converter are selected with a capacity of C = 20 uF, with the possibility of increasing to 80 uF (by connecting in parallel), the input choke was L = 812 uH. On the oscillograms of currents and voltages, the spectrum of output and input current is given, where it is shown that the share of the high-frequency component of the output current is less than 10% [51][52][53][54].…”

Section: Experiments Of An Ac Voltage Regulator With a Full Number Of...mentioning

confidence: 99%

Review and Analysis of Energy-Efficient AC Voltage Regulators

Udovichenko,

Grishanov,

Kosykh

et al. 2023

Preprint

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The formation of the required AC voltage level is currently one of the most important problems. An unstable voltage level can lead to the failure of domestic and industrial equipment, also to the appearance of a lighting equipment flicker effect, which can adversely affect the operating mode. In this regard, the development of AC voltage regulators that perform the function of stabilizers has become relevant. In turn, new topologies should be energy efficient and reliable, this can be achieved by reducing the number of semiconductor elements, which in turn will reduce losses and increase efficiency. In addition to voltage stabilization, AC voltage regulators have found application as soft-start devices for asynchronous motors, and have become competitors to frequency converters. The power level can vary from units to tens of kilowatts where such devices can be used. This paper provides a review of AC voltage regulators, which can be used both as soft starters and AC voltage stabilizers. The analysis of the circuits was carried out and the efficiency was evaluated through their total harmonic distortions (THD), power factor and efficiency coefficient. Experiments were also performed for a number of circuits, where their operating modes were evaluated. Eventually, all circuits were divided into full number of switches with two or more AC switches per phase, with a reduced number of switches, where one AC switch per phase and with low number of switches – with one complementary pair of AC switches for all three phases.

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Insolated high frequency link AC-AC converter based on sinusoidal wave modulation technology for voltage compensation

Deng

et al. 2013

2013 IEEE ECCE Asia Downunder

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A novel AC-AC series voltage compensator without large energy storage elements and using partial power conversion

Cited by 5 publications

References 20 publications

Analysis of Novel Energy-Efficient Converters to Ensure the Required Quality of Electrical Energy

Analysis of Novel Energy-Efficient Converters to Ensure the Required Quality of Electrical Energy

Review and Analysis of Energy-Efficient AC Voltage Regulators

Insolated high frequency link AC-AC converter based on sinusoidal wave modulation technology for voltage compensation

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