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This study deals with an implementation of an instantaneous reactive power theory-based electronic load controller (ELC) for regulating the voltage and frequency of an isolated induction generator system (IG) that can supply electricity in remote areas. This ELC provides the fundamental reactive power and compensates harmonics of load currents. The proposed ELC is a combination of voltage source converter (VSC) with a dc link capacitor, a chopper and an auxiliary load at its dc bus. It controls active and reactive powers of the small hydro plant thus regulating the voltage and frequency of IG system. This ELC also balances the currents of the IG system under unbalanced load currents and eliminates the harmonics of the load currents thereby acting both as a load balancer and a harmonic eliminator. The zigzag/star transformer optimises the dc bus voltage of VSC and acts as a neutral current compensator. The proposed IG along with its ELC is implemented on a 3.7 kW IG system.
References
-
-
1)
-
J.M. Elder ,
J.T. Boys ,
J.L. Woodward
.
The process of self excitation in induction generators.
IEE
,
2 ,
103 -
108
-
2)
-
H.L. Jou
.
Performance comparison of the three-phase active-power-filter algorithms.
IEE Gener. Transm. Distrib.
,
6 ,
646 -
652
-
3)
-
H.-L. Jou ,
J.-C. Wu ,
K.-D. Wu ,
W.-J. Chiang ,
Y.-H. Chen
.
Analysis of zig-zag transformer applying in the three-phase four-wire distribution power system.
IEEE Trans. Power Deliv.
,
2 ,
1168 -
1173
-
4)
-
C. Sewan ,
M. Jang
.
A reduced-rating hybrid filter to suppress neutral current harmonics in three-phase four-wire systems.
IEEE Trans. Indus. Electron.
,
4 ,
927 -
930
-
5)
-
B. Singh ,
G.K. Kasal ,
S. Gairola
.
Power quality improvement in conventional electronic load controller for an isolated power generation.
IEEE Trans. Energy Convers.
,
3 ,
764 -
773
-
6)
-
E.D. Basset ,
E.M. Potter
.
Capacitive excitation for induction generator.
AIEE Trans. Electr. Eng.
,
540 -
545
-
7)
-
B. Singh ,
P. Jayaprakash ,
T.R. Somayajulu ,
D.P. Kothari
.
Reduced rating VSC with a zig-zag transformer for current compensation in a three-phase four-wire distribution system.
IEEE Trans. Power Deliv.
,
1 ,
249 -
259
-
8)
-
T.F. Chan
.
Capacitance requirements of self-excited induction generators.
IEEE Trans.Energy Convers.
,
2 ,
304 -
311
-
9)
-
Bhuvaneswari, G., Nair, M.G., Kumar Reddy, S.: `Comparison of synchronous detection and I. Cos φ shunt active filtering algorithms', IEEE Conf. PEDES, 2006, p. 1–5.
-
10)
-
G.K. Kasal ,
B. Singh
.
Decoupled voltage and frequency controller for isolated asynchronous generators feeding three-phase four-wire loads.
IEEE Trans. Power Deliv.
,
2 ,
966 -
973
-
11)
-
R.C. Bansal ,
T.S. Bhatti ,
D.P. Kothari
.
Bibliography on the application of induction generators in nonconventional energy systems.
IEEE Trans. Energy Convers.
,
3 ,
433 -
439
-
12)
-
H.-L. Jou ,
K.-D. Wu ,
J.-C. Wu ,
W.-J. Chiang
.
A three-phase four-wire power filter comprising a three-phase three-wire active power filter and a zigzag transformers.
IEEE Trans. Power Electron.
,
1 ,
252 -
259
-
13)
-
H. Akagi ,
Y. Kanazawa ,
A. Nabae
.
Instantaneous reactive power compensators comprising switching devices without energy storage components.
IEEE Trans. Indus. Appl.
,
3 ,
625 -
630
-
14)
-
U.K. Rao ,
M.K. Mishra ,
A. Ghosh
.
Control strategies for load compensation using instantaneous symmetrical component theory under different supply voltages.
IEEE Trans. Power Deliv.
,
4 ,
2310 -
2317
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-rpg.2010.0081
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