Abstract
This paper presents the new topology of a three-phase four-wire Dynamic Voltage restorer (DVR) for mitigating voltage disturbances in low voltage distribution system. The proposed DVR topologies are consist of filtering scheme, isolation or distribution transformer, injection transformer winding and two split DC-link capacitors. The direct-quadrature-zero transformation technique was used as a controller of the proposed DVR. The suggested topologies and its controller was verified through simulation using MATLAB/SIMULINK Sim-Power System Toolbox and implemented in a prototype of the DVR with 5 KVA of the power rating. The experimental and simulation results validate the capability in compensating of voltage disturbances.
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Abbreviations
- Symbol:
-
Description
- d, q :
-
Two-axis synchronous frame quantities
- α, β :
-
Two-axis stationary frame quantities.
- v d, v q :
-
d- and q-axis components of the synchronous frame variables
- d-q-o:
-
Direct quadrature zero
- V 1, V 2, V 0 :
-
Positive, negative and zero sequence voltage
- PWM:
-
Pulse Width Modulation
- THDV :
-
Total harmonics distortion for voltage
- THDI :
-
Total harmonics distortion for voltage
- PI:
-
Proportional Integral
- a Delta–open :
-
Delta open-winding
- a Wye–Open :
-
Wye open-winding
- θ :
-
Angle of the source voltage
- VSI:
-
Voltage Source Inverter
- S min :
-
Minimum Apparent power inject
- V source :
-
Source Voltage
- V load :
-
Load Voltage
- LPF:
-
Low Pass Filter
- V DC :
-
Energy Storage DC
- V DVR :
-
DVR Injection Voltage
- P LL :
-
Phase Lock Loop
- I inj :
-
Injection Current
- I load :
-
Load Current
- V sa, V sb, V sc :
-
Voltage Supply
- I a :
-
Source Current
- L a :
-
Inductance Input
- C fa, C fb, C fc, C 1, C 2, C 3 :
-
Capacitors Filter
- R a, R b, R c :
-
Resistors Filter
- L fa, L fb, L fc :
-
Inductors Filter
- Z a, Z b, Z c :
-
Impedances Input
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Omar, R., Rahim, N.A. New Configuration of a Three Phase Dynamic Voltage Restorer (DVR) for Voltage Disturbances Mitigation in Electrical Distribution System. Arab J Sci Eng 37, 2205–2220 (2012). https://doi.org/10.1007/s13369-012-0311-5
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DOI: https://doi.org/10.1007/s13369-012-0311-5