Optimally Tuned Interleaved Luo Converter for PV Array Fed BLDC Motor Driven Centrifugal Pumps Using Whale Optimization Algorithm—A Resilient Solution for Powering Agricultural Loads
Abstract
:1. Introduction
- To address the issue of resilient operation, a grid-interactive PV powered BLDC motor driven WPS is proposed. This proposed system follows the bidirectional power flow technique. During daylight hours, the power retrieved from PV is high enough to drive the motor pump. Meanwhile, the fetched power from PV is high; it can be served to nearby agro-processing industries and domestic purposes. However, at night time, the solar PV is not able to generate power. In that case, the power in the grid will be sufficiently used to drive the motor pump. Thus, the resilience operation of WPS is achieved.
- In the proposed system for retrieving the generated power from PV array, a positive I-Luo converter is used, which boosts the output with minimum switching losses.
- To maintain the steady-state voltage at the output of the I-Luo converter, a PI controller whose parameters are tuned by whale optimization algorithm (WOA) is used.
2. Conceptual Framework and Description of the Water Pumping System
3. Modeling of the Proposed Water Pumping System for Agricultural Application
3.1. Design of Solar Photovoltaic Array
3.2. Design of Proposed Positive Interleaved Luo (I-Luo) Converter
3.2.1. State-Space Representation
3.2.2. Working of Proposed Interleaved Luo Converter
3.3. Whale Optimization Algorithm for Tuning Controller Parameters
3.4. Operation of Brushless Direct Current Motor
3.5. Design of Voltage Source Inverter
4. Results and Discussion
4.1. Simulation Results
4.2. Results from the Experimental Validation
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
Appendix A
Appendix A.1. Design of Interleaved LUO Converter
Appendix A.2. Comparison of Voltage Gains of Different Interleaved Converters
Appendix A.3. Efficiency Comparison of Converters
Appendix A.4. Brief Theory of Whale Optimization Algorithm
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Parameters. | Values with Unit |
---|---|
Peak power (Pmp) | 100 W |
No. of modules in the PV array | 15 |
Open circuit voltage (Voc) | 22.68 V |
Short circuit current (Isc) | 5.86 A |
Peak power voltage (Vmp) | 18.75 V |
Peak power current (Imp) | 5.42 A |
Number of series-connected cells (Ns) | 36 |
LUO Converter Circuit | No. of Inductors | No. of Diodes | No. of Switches |
---|---|---|---|
Elementary | 2 | 1 | 1 |
Self-lift | 2 | 2 | 1 |
Re-lift | 3 | 3 | 2 |
Triple-lift | 4 | 4 | 2 |
Proposed interleaved | 2 | 4 | 2 |
LUO Converter Circuit | I0 | V0 | Vpv = 80 V | |
---|---|---|---|---|
d = 0.5 | d = 0.75 | |||
Elementary | I0=Ipv | V0=Vpv | 160 | 210 |
Self lift | I0=Ipv | V0=Vpv | 180 | 240 |
Re lift | I0=Ipv | V0=Vpv | 190 | 310 |
Triple lift | I0=Ipv | V0=Vpv | 210 | 410 |
Proposed interleaved | I0=Ipv | V0= 3Vpv | 230 | 600 |
Converter | THD with PI Controller | PF with PI Controller | THD with Whale Optimized PI Controller | PF with Whale Optimized PI Controller |
---|---|---|---|---|
PI Luo (Simulation) | 4.2 | 0.97 | 2.9 | 0.989 |
PI Luo (Hardware) | 4.5 | 0.965 | 3.9 | 0.986 |
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Share and Cite
Jegha, A.D.G.; Subathra, M.S.P.; Kumar, N.M.; Ghosh, A. Optimally Tuned Interleaved Luo Converter for PV Array Fed BLDC Motor Driven Centrifugal Pumps Using Whale Optimization Algorithm—A Resilient Solution for Powering Agricultural Loads. Electronics 2020, 9, 1445. https://doi.org/10.3390/electronics9091445
Jegha ADG, Subathra MSP, Kumar NM, Ghosh A. Optimally Tuned Interleaved Luo Converter for PV Array Fed BLDC Motor Driven Centrifugal Pumps Using Whale Optimization Algorithm—A Resilient Solution for Powering Agricultural Loads. Electronics. 2020; 9(9):1445. https://doi.org/10.3390/electronics9091445
Chicago/Turabian StyleJegha, A. Darcy Gnana, M.S.P. Subathra, Nallapaneni Manoj Kumar, and Aritra Ghosh. 2020. "Optimally Tuned Interleaved Luo Converter for PV Array Fed BLDC Motor Driven Centrifugal Pumps Using Whale Optimization Algorithm—A Resilient Solution for Powering Agricultural Loads" Electronics 9, no. 9: 1445. https://doi.org/10.3390/electronics9091445