DC Link Capacitor Voltage Stabilization of DFIG under various Fault Conditions
| Author(s) | : | Rekha Parashar, Shashikant, Apoorva Srivastava |
| Institution | : | Electrical Department, BBD University, Lucknow |
| Published In | : | Vol. 2, Issue 4 — April 2015 |
| Page No. | : | 102-114 |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
- Variable-speed Doubly Fed Induction Generator(DFIG) wind energy system is one of the main WECSconfigurations in today’s wind power industry. The variable-speed operation is possible due to the power electronicconverters interface, allowing a full (or partial) decoupling from the grid. For a DFIG based wind energy system, therotor-side converter (RSC) controls the torque and active/ reactive power of the generator while the grid-side converter(GSC) controls the DC-link voltage and its AC-side reactive power. The stability of DC link capacitor voltage is veryimportant in ensuring that a nearly sinusoidal voltage is delivered by the grid side converter which is used as inverter.The fluctuations in the DC -link voltage cut down the lifetime and reliability of capacitors in voltage sourceconverters.The paper Deals with DC Link capacitor voltage stabilization under various types of faulty and loadconditions. In this Paper Variable Voltage source has been taken which represents a Fault that occurs in source widesystem. Due to this the Variable voltage source has been decreased to 0.5 Pu. So, Behaviour of DFIG system is studied inthis paper. The analysis is performed for normal, unsymmetrical fault and load conditions on DFIG integrated with gridunder MATLAB/ SIMULINK.
Rekha Parashar, Shashikant, Apoorva Srivastava, “DC Link Capacitor Voltage Stabilization of DFIG under various Fault Conditions”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 2, Issue 4, pp. 102-114, April 2015.
