A multimodule parallelable series-connected PWM voltage regulator
Chiang, S.J.
Yen, C.Y.
Chang, K.T.
Dept. of Electr. Eng., Nat. Lien-Ho Inst. of Technol., Miao;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Jun 2001
Volume: 48,
Issue: 3
On page(s): 506-516
ISSN: 0278-0046
References Cited: 14
CODEN: ITIED6
INSPEC Accession Number: 6951724
Digital Object Identifier: 10.1109/41.925577
Current Version Published: 2002-08-07
Abstract
This paper presents the analysis and design of a single-phase
voltage regulator (VR) and its multinodule parallel control. The VR
employs the pulsewidth modulation three-arm rectifier-inverter topology.
The inverter side adjusts the load voltage with the series regulating
structure aiming to minimize converter capacity and attain higher
efficiency. The rectifier side regenerates the load power and executes
the active power filter function to achieve unity power factor. Based on
such high-performance VR, a resistive droop method combined with the P-V
droop and Q-δ shift scheme is then proposed to control the current
sharing such that multiple VRs can be paralleled directly without any
control interconnection. The proposed parallel control technique
possesses the features of fast response, precise voltage regulation,
equal fundamental and harmonic current sharing, tolerance for parameter
mismatch, and so on. Two prototype 1 KVA VRs are implemented, and the
effectiveness is demonstrated by some simulation and experimental
results
Index
Terms
Available to subscribers and IEEE members.
References
Available to subscribers and IEEE members.
Citing Documents
Available to subscribers and IEEE members.
Cart
