AC voltage regulation of a bidirectional high-frequency link converter using a deadbeat controller

This paper presents a digital controller for AC voltage regulation of a bidirectional high-frequency link (BHFL) inverter using Deadbeat control. The proposed controller consists of inner current loop, outer voltage loop and a feed-forward controller, which imposes a gain scheduling effect according...

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Hauptverfasser: Toh, L. S., Ramli, M. Z., Salam, Zainal, Elbuluk, M. E.
Format: Artikel
Sprache:English
Veröffentlicht: IEEE 2006
Schlagworte:
Online Zugang:http://eprints.utm.my/1651/1/zainalsalam06_AC_Voltage_Regulation.pdf
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author Toh, L. S.
Ramli, M. Z.
Salam, Zainal
Elbuluk, M. E.
author_facet Toh, L. S.
Ramli, M. Z.
Salam, Zainal
Elbuluk, M. E.
author_sort Toh, L. S.
collection ePrints
description This paper presents a digital controller for AC voltage regulation of a bidirectional high-frequency link (BHFL) inverter using Deadbeat control. The proposed controller consists of inner current loop, outer voltage loop and a feed-forward controller, which imposes a gain scheduling effect according to the reference signal to compensate the steady-state error of the system. The main property of the proposed controller is that the current- and the voltage-loop controllers have the same structure, and use the same sampling period. This simplifies the design and implementation processes. To improve the overall performance of the system, additional disturbance decoupling networks are employed. This takes into account the model discretization effect. Therefore, accurate disturbance decoupling can be achieved, and the system robustness towards load variations is increased. To avoid transformer saturation due to low frequency voltage envelopes, an equalized pulse width modulation (PWM) technique has been introduced. The proposed controller has been realized using the DS1104 digital signal processor (DSP) from dSPACE. Its performances have been tested on a one kVA prototype inverter. Experimental results showed that the proposed controller has very fast dynamic and good steady-state responses even under highly nonlinear loads.
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spelling utm.eprints-16512010-06-01T02:56:54Z http://eprints.utm.my/1651/ AC voltage regulation of a bidirectional high-frequency link converter using a deadbeat controller Toh, L. S. Ramli, M. Z. Salam, Zainal Elbuluk, M. E. TK Electrical engineering. Electronics Nuclear engineering This paper presents a digital controller for AC voltage regulation of a bidirectional high-frequency link (BHFL) inverter using Deadbeat control. The proposed controller consists of inner current loop, outer voltage loop and a feed-forward controller, which imposes a gain scheduling effect according to the reference signal to compensate the steady-state error of the system. The main property of the proposed controller is that the current- and the voltage-loop controllers have the same structure, and use the same sampling period. This simplifies the design and implementation processes. To improve the overall performance of the system, additional disturbance decoupling networks are employed. This takes into account the model discretization effect. Therefore, accurate disturbance decoupling can be achieved, and the system robustness towards load variations is increased. To avoid transformer saturation due to low frequency voltage envelopes, an equalized pulse width modulation (PWM) technique has been introduced. The proposed controller has been realized using the DS1104 digital signal processor (DSP) from dSPACE. Its performances have been tested on a one kVA prototype inverter. Experimental results showed that the proposed controller has very fast dynamic and good steady-state responses even under highly nonlinear loads. IEEE 2006-10 Article PeerReviewed application/pdf en http://eprints.utm.my/1651/1/zainalsalam06_AC_Voltage_Regulation.pdf Toh, L. S. and Ramli, M. Z. and Salam, Zainal and Elbuluk, M. E. (2006) AC voltage regulation of a bidirectional high-frequency link converter using a deadbeat controller. The 2006 IEEE Industry Applications Conference , 2 . pp. 1045-1052. http://ieeexplore.ieee.org
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Toh, L. S.
Ramli, M. Z.
Salam, Zainal
Elbuluk, M. E.
AC voltage regulation of a bidirectional high-frequency link converter using a deadbeat controller
title AC voltage regulation of a bidirectional high-frequency link converter using a deadbeat controller
title_full AC voltage regulation of a bidirectional high-frequency link converter using a deadbeat controller
title_fullStr AC voltage regulation of a bidirectional high-frequency link converter using a deadbeat controller
title_full_unstemmed AC voltage regulation of a bidirectional high-frequency link converter using a deadbeat controller
title_short AC voltage regulation of a bidirectional high-frequency link converter using a deadbeat controller
title_sort ac voltage regulation of a bidirectional high frequency link converter using a deadbeat controller
topic TK Electrical engineering. Electronics Nuclear engineering
url http://eprints.utm.my/1651/1/zainalsalam06_AC_Voltage_Regulation.pdf
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