FPGA based variable frequency AC to AC power conversion

Agarwal, Anshul; Agarwal, Vineeta

doi:10.1016/j.epsr.2012.04.003

Cited by 10 publications

(11 citation statements)

References 22 publications

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“…The output voltage

v_{o}

, output current

i_{o}

, and source input current

i_{i n}

waveforms, when the SSMC is connected to an RL load of 100

normalΩ

+ 15 mH, are shown in Figures 12–14, respectively. It can be recognized that the methods of previous studies 31–36 provide output voltage spikes at each switching cycle due to the lack of RL load freewheeling path when the PWM signal is low, as discussed earlier. Therefore, the methods of previous studies 31–36 cannot be used with adequate RL loads without the use of some external dissipative circuits, such as a clamp circuit.…”

Section: Simulation Studymentioning

confidence: 99%

“…It is clear that even with a clamp circuit, the methods of previous works [31][32][33][34][35][36] still show voltage spikes when the PWM signal is low. Therefore, the resistance of R cl should decrease to eliminate the voltage spikes when the control methods of in previous studies [31][32][33][34][35][36] F I G U R E 1 8 The influence of clamp circuit components on the SSMC performance. (A) The effect of the clamp resistor value on the source current rms value and amplitude of voltage spikes.…”

Section: Case Study 3: Operation Under Rl Load With a Clamp Circuitmentioning

confidence: 99%

“…Furthermore, at each half cycle of the synthesized output signal, two switches are triggered with high-frequency PWM signals, which increases the switching losses. Similarly, the control method of Agarwal and Agarwal 33,34 lacks providing a freewheeling path for RL load current to flow when the PWM signal is low; thus, it can only be used with purely resistive or relatively poorly inductive loads. Moreover, the studies of Agarwal and Agarwal 33,34 supply the SSMC with a relatively low voltage when connected to a relatively highly resistive load.…”

Section: Introductionmentioning

confidence: 99%

“…Similarly, the control method of Agarwal and Agarwal 33,34 lacks providing a freewheeling path for RL load current to flow when the PWM signal is low; thus, it can only be used with purely resistive or relatively poorly inductive loads. Moreover, the studies of Agarwal and Agarwal 33,34 supply the SSMC with a relatively low voltage when connected to a relatively highly resistive load. Therefore, the effectiveness of the control method can not be judged under the given conditions.…”

Section: Introductionmentioning

confidence: 99%

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A novel control method for enhanced performance of single‐phase matrix converters

Al‐Dori,

Vural

2023

Circuit Theory & Apps

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The conventional topology of direct single‐to‐single‐phase matrix converter (SSMC) is widely adopted in industrial and power system‐related applications owing to its desired features. Current control methods in the literature either limit the voltage transfer ratio (VTR) or prohibit their utilization to drive inductive (RL) loads. In this study, we propose a novel control method that overcomes these limitations by enabling the SSMC to achieve relatively high VTRs while driving RL loads with negligible output voltage spikes and without current commutation problems. Further, the proposed control method improves the overall performance by reducing output voltage and source input current total harmonic distortion (THD) and offering soft‐switching at the commutation instances. The rigidity of the proposed control method over the counterpart methods in the literature is verified through simulation and experimental case studies over a wide range of synthesized output frequencies and modulation indexes. A 530‐W laboratory prototype is built for the experimental study. Results demonstrated the ability of the proposed method in enabling the SSMC to drive an RL load without current commutation issues and with mitigated output voltage spikes while achieving relatively high VTRs and suppressing the output voltage and source input current THD.

show abstract

“…The output voltage

v_{o}

, output current

i_{o}

, and source input current

i_{i n}

waveforms, when the SSMC is connected to an RL load of 100

normalΩ

Section: Simulation Studymentioning

confidence: 99%

Section: Case Study 3: Operation Under Rl Load With a Clamp Circuitmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A novel control method for enhanced performance of single‐phase matrix converters

Al‐Dori,

Vural

2023

Circuit Theory & Apps

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show abstract

“…During this interval, the grid voltage, V grid passing through L & C acts as input voltage, V CYCLO_OUT to the BDCC in reverse mode. The grid frequency voltage is converted to HFAC voltage in this mode by operating the BDCC in reverse mode [12][13]. In BDCC as shown in Fig.1, when the switches D 1 and D 2 are in ON state, the grid current flows through the path, grid-D 2 -HFT secondary terminals -D 1 -grid.…”

Section: Mode 3: Grid-ev Reverse Mode Operation Of the Proposed Ev Bamentioning

confidence: 99%

PV and Grid interfaced Plug-in EV Battery Charger operating in P-VG, P-V and V-G Modes

Subudhi¹,

Krithiga²

2019

IJRTE

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 Abstract: The proposed system facilitates uninterruptable charging of a photovoltaic (PV) fed plug-in electric vehicle (EV) battery charging system irrespective of solar irradiation conditions by integrating utility grid to the battery charging system. The system employs bidirectional cycloconverter (BDCC) in order to use utility grid as source or sink during different modes of operation which depends on the availability of solar power. During low irradiation condition, the utility grid acts as a backup source in order to facilitate uninterruptable charging of the EV battery. When surplus power is generated from the PV panel, it is fed to the utility grid, which acts as sink in this mode. For uninterruptable EV battery charging, the controller operates the switches and relays in the proposed system corresponding to solar irradiation level. The available literatures define complex control strategies which are solved in this proposed system by adopting a simple dynamic control algorithm. The simulation of the proposed system has been carried out using PSIM simulation software and experimental prototype has been designed, developed and tested for different modes of operations to validate the efficacy of the proposed system.

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Single-stage AC–AC power conversion for WECS

Singh

Agarwal

2015

International Journal of Electrical Power & Energy Systems

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FPGA based variable frequency AC to AC power conversion

Cited by 10 publications

References 22 publications

A novel control method for enhanced performance of single‐phase matrix converters

A novel control method for enhanced performance of single‐phase matrix converters

PV and Grid interfaced Plug-in EV Battery Charger operating in P-VG, P-V and V-G Modes

Single-stage AC–AC power conversion for WECS

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