Research on AC electronic load based on back to back single-phase PWM rectifiers

Li, F.; Zou, Yunping; Wang, C.Z.; Chen, W.; Zhang, Y.C.; Zhang, J.

doi:10.1109/apec.2008.4522787

Cited by 20 publications

(7 citation statements)

References 8 publications

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“…This topology is able to consume or inject energy into DC systems. In the same way, backto-back topology has two emulation modes (consumer and generator) for equipment in AC [3,6,13,[22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Implementation of a Programmable Electronic Load for Equipment Testing

et al. 2022

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This paper presents the implementation of an AC three-phase programmable electronic load (PEL) that emulates load profiles and can be used for testing equipment in microgrids (MGs). The implemented PEL topology is built with a voltage source inverter (VSI) which works as a current controlled source and a Buck converter which permits the dissipation of active power excess. The PEL operation modes according to the interchange of active and reactive power and its operation in four quadrants were determined. The power and current limits which establish the control limitations were also obtained. Three control loops were implemented to independently regulate active and reactive power and ensure energy balance in the system. The main contribution of this paper is the presentation a detailed analysis regarding hardware limitations and the operation of the VSI and Buck converter working together. The PEL was implemented for a power of 1.8 kVA. Several experimental results were carried out with inductive, capacitive, and resistive scenarios to validate the proper operation of the PEL. Experimental tests showed the correct behavior of the AC three-phase currents, VSI input voltage, and Buck converter output voltage of the PEL for profile changes, including transient response.

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Section: Introductionmentioning

confidence: 99%

Implementation of a Programmable Electronic Load for Equipment Testing

et al. 2022

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“…This component ensures the VSC supplies currents close to the desired references. In [10,11], two single-phase PELs based on VSC converters in a back-to-back topology were presented. This system uses a proportional integral (PI) control and a proportional resonant (PR) control.…”

Section: Introductionmentioning

confidence: 99%

Programmable Electronic Load Prototype for the Power Quality Analysis of an Experimental Microgrid

et al. 2022

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Microgrids have been widely adopted in many countries because they provide more reliable electricity service to those users connected to the power grid. These systems comprise various power sources, energy storage devices, and loads. However, detailed studies require considering linear and nonlinear loads, which are now used in this type of network. In addition, experimental tests require devices that emulate loads, represent different topologies, and construct assemblies for better identification, validation, and theoretical approximations of the power grid. Therefore, this paper presents a programmable electronic load to emulate linear and nonlinear loads of a microgrid, based on the control of a single-phase voltage source converter that considers rectification and power dissipation stages. Furthermore, a control stage allows power consumption variations, controlling the current demanded by the load, according to the reference current waveform programmed through a user interface. A synchronous reference frame phase-locked loop is implemented on a microcontroller. Thus, the programmable electronic load enables studying power quality in microgrids. Finally, the operation of the programmable electronic load is validated through experimental and simulation tests, considering different case studies.

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“…An AC load emulator which is based on two back to back single phase PWM converters is presented in [6]. The authors of [7] presented another AC load emulator based on AC-DC-AC power converter topology and a z-source converter.…”

Section: Introductionmentioning

confidence: 99%