Grid Integration of Single Stage Solar PV System using Three-level Voltage Source Converter
-
Ikhlaq Hussain
,
Maulik Kandpal
Abstract
This paper presents a single stage solar PV (photovoltaic) grid integrated power generating system using a three level voltage source converter (VSC) operating at low switching frequency of 900 Hz with robust synchronizing phase locked loop (RS-PLL) based control algorithm. To track the maximum power from solar PV array, an incremental conductance algorithm is used and this maximum power is fed to the grid via three-level VSC. The use of single stage system with three level VSC offers the advantage of low switching losses and the operation at high voltages and high power which results in enhancement of power quality in the proposed system. Simulated results validate the design and control algorithm under steady state and dynamic conditions.
Funding statement: Department of Science and Technology, Govt. of India, Grant number: RP02583.
Appendix
A A Solar PV data
Vocn=32.9 V, Isc=8.21 A, Vmp=26.3 V, Imp=7.61 A, current temperature coefficient Ki=0.0032 A/K, voltage temperature coefficient Kv=−0.1230 V/K, ns=25, np=10.
B B VSC and control parameters
P=50 kW, Vs=415 V, f=50 Hz, Vdc=700 V, V1=V2=350 V, C1=C2=7,808 µF. Interfacing Inductor: a=1.2, fsw=900 Hz,
IR=
Controller gains: Kpdc=.01 and Kidc=0.001, Kp1=5 and
Ki1=.001, Kp2=10 and Ki2=.001. Kp3=0.1 and Ki3=10.
Acknowledgments
Authors are highly thankful to DST, Govt. of India, for supporting this project under Grant Number: RP02583.
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Articles in the same Issue
- Frontmatter
- Research Articles
- Control of Grid Connected Photovoltaic System Using Three-Level T-Type Inverter
- A New Method for Setting Calculation Sequence of Directional Relay Protection in Multi-Loop Networks
- Performance Analysis of SISFCL with the Variation of Circuit Parameters using Jiles Atherton Hysteresis Model
- Generation Expansion Planning with High Penetration of Wind Power
- Grid Integration of Single Stage Solar PV System using Three-level Voltage Source Converter
- Extraction and Analysis of Inter-area Oscillation Using Improved Multi-signal Matrix Pencil Algorithm Based on Data Reduction in Power System
- A New Control Method to Mitigate Power Fluctuations for Grid Integrated PV/Wind Hybrid Power System Using Ultracapacitors
- Comparative Analysis of Instruments Measuring Time Varying Harmonics
- Application of Energy Function as a Measure of Error in the Numerical Solution for Online Transient Stability Assessment
Articles in the same Issue
- Frontmatter
- Research Articles
- Control of Grid Connected Photovoltaic System Using Three-Level T-Type Inverter
- A New Method for Setting Calculation Sequence of Directional Relay Protection in Multi-Loop Networks
- Performance Analysis of SISFCL with the Variation of Circuit Parameters using Jiles Atherton Hysteresis Model
- Generation Expansion Planning with High Penetration of Wind Power
- Grid Integration of Single Stage Solar PV System using Three-level Voltage Source Converter
- Extraction and Analysis of Inter-area Oscillation Using Improved Multi-signal Matrix Pencil Algorithm Based on Data Reduction in Power System
- A New Control Method to Mitigate Power Fluctuations for Grid Integrated PV/Wind Hybrid Power System Using Ultracapacitors
- Comparative Analysis of Instruments Measuring Time Varying Harmonics
- Application of Energy Function as a Measure of Error in the Numerical Solution for Online Transient Stability Assessment
