Delta-Bar-Delta Neural-Network-Based Control Approach for Power Quality Improvement of Solar-PV-Interfaced Distribution System
| Autor: | Pavitra Shukl, Bhim Singh |
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| Rok vydání: | 2020 |
| Předmět: |
Insolation
Computer science 020208 electrical & electronic engineering Photovoltaic system 02 engineering and technology Power factor AC power Maximum power point tracking Computer Science Applications Control and Systems Engineering Control theory Voltage sag Harmonics 0202 electrical engineering electronic engineering information engineering Solar energy conversion Power quality Distribution grid Electrical and Electronic Engineering Robust control Energy source Information Systems |
| Zdroj: | IEEE Transactions on Industrial Informatics. 16:790-801 |
| ISSN: | 1941-0050 1551-3203 |
| DOI: | 10.1109/tii.2019.2923567 |
| Popis: | A serious concern regarding deterioration in power quality has emerged with the increasing integration of solar photovoltaic (PV) energy sources to the utility primarily in the scenario of a weak distribution grid. Therefore, power quality improvement of the grid-tied solar energy conversion system is paramount by implementation of a robust control technique. This paper deals with a delta-bar-delta neural network (NN) control for operating optimally by feeding active power to the loads and remaining power to the grid as a function of distribution static compensator capabilities, such as mitigating harmonics, balancing of load, and improving power factor. The control algorithm provides the ability to adjust weights adaptively in an independent manner, and hence, it offers alleviation in model complexity predominant during abnormal grid conditions along with reduction in computational time. Moreover, the NN-based control technique offers enhanced accuracy due to the combinational neural structure in the estimation process. In addition, the system performance according to the IEEE-519 standard has been verified; hence, it is proficient in maintaining the power quality. The solar-PV-array-efficient utilization is accomplished through an incremental-conductance-based maximum power point tracking technique. For validating the behavior of the proposed system, its performance is studied using simulation results. Moreover, a prototype is developed for validation, and experimental results corroborate reliable operation under nonideal grid conditions comprising of a wide range of load variations, voltage sag, and varying solar insolation conditions. |
| Databáze: | OpenAIRE |
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