Power Quality Improvement for Low Active Power Demand using Advance Voltage Support Scheme
N. Vani Annapurna Bhavani1, K. Swetha2, Praveen Kumar Bandila3
1K. Swetha, Department of Electrical & Electronic Engineering, Sagi Rama Krishnam Raju Engineering College, Bhimavaram (Andhra Pradesh), India.
2N. Vani Bhavani, Department of Electrical & Electronic Engineering, Sagi Rama Krishnam Raju Engineering College, Bhimavaram (Andhra Pradesh), India.
3Praveen Kumar Bandila, Department of Electrical & Electronic Engineering, Sagi Rama Krishnam Raju Engineering College, Bhimavaram (Andhra Pradesh), India.
Manuscript received on 11 May 2019 | Revised Manuscript received on 05 June 2019 | Manuscript Published on 15 June 2019 | PP: 135-140 | Volume-8 Issue-1S3 June 2019 | Retrieval Number: A10250681S319/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In case of severe faults which unbalance the grid, improving the grid reliability is the main requirement in case distributed generation (DG) units. The voltage support schemes (VSS) that are being in use involves STATCOM submissions, where the active power is zero. An advanced voltage support scheme is proposed in this paper to support the voltage under various schemes at the converter interface units called Zero Sequence compensated voltage support scheme (ZCVS), regulates the 𝟑∅ voltage at the connection point within safety limits. Zero Sequence compensated voltage support scheme (ZCVS) in combination with MAPD can support for concentrated active power transfer to the ac grid. Applying the MAPD technique guarantees delivering the maximum allowable active power to the grid and in stantaneouslyvariable the current limitations while riding through abnormal conditions. The results comparing Zero Sequence compensated voltage support scheme (ZCVS) with traditional voltage support (VSS) schemes is done and the complementary strategy is verified in MATLAB/SIMULINK.
Keywords: Active Power Injection, Positive and Negative Sequence Voltages, Voltage Sag, Voltage Unbalance, Voltage Swells.
Scope of the Article: Low-power design