Advanced Control Strategy With Voltage Sag Classification for Single-Phase Grid-Connected Photovoltaic System

Khan, Mohammed Ali; Haque, Ahteshamul; Kurukuru, Varaha Satya Bharath; Mekhilef, Saad

doi:10.1109/jestie.2020.3041704

Cited by 44 publications

(16 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Active and reactive power control methods are discussed in [10]- [12], particularly in IBG connected as distributed generation. Most of the research found in the literature focuses on issues related to transient voltage recovery especially, fault Ride-Through(FTR) or Low Voltage Ride-Through (LVRT) upon clearance of a fault [13]- [15]. Reactive power priority can inject more active and reactive power during the voltage recovery period compared to active priority control, resulting in improved frequency nadir [14].…”

Section: Related Previous Workmentioning

confidence: 99%

A Comparison of Inverter Control Modes for Maintaining Voltage Stability During System Contingencies

Hathiyaldeniye

Annakkage

Pahalawaththa³

et al. 2022

IEEE Open J. Power Energy

View full text Add to dashboard Cite

Inverter-based power sources are increasingly being connected to the power system due to the global drive towards renewable generation. This paper investigates the voltage stability of a power system where a load center is supplied by the grid through a transmission system along with an inverter-based generation located close to the load center. It is also assumed that there is no additional reactive power compensation at the load center and voltage control at Point of Common Coupling (PCC) is done by the inverter. This is challenging as the inverter has an added duty. If the inverter controllers are not designed properly, the inverter could reach its current limit following to contingencies rendering it unable to support the voltage at the PCC. This is due to the fact that once the current limit is reached, the inverter ceases to function as a voltage source. When the voltage at the PCC is not supported, the active power transfer capability of both the inverter and the grid will be reduced. An effective control method is required under such circumstances to handle the active and reactive components of the inverter current. Various strategies exist for controlling the active and reactive components of the inverter current while preserving the current magnitude at the rated value. The necessity of an adequate control strategy to sustain long-term voltage stability following a system contingency is emphasized in this research. This paper further discusses three candidate control strategies and the effectiveness of the reactive current prioritizing approach as a solution for operation upon system contingencies.

show abstract

Section: Related Previous Workmentioning

confidence: 99%

A Comparison of Inverter Control Modes for Maintaining Voltage Stability During System Contingencies

Hathiyaldeniye

Annakkage

Pahalawaththa³

et al. 2022

IEEE Open J. Power Energy

View full text Add to dashboard Cite

show abstract

“…Where L is the minimum inductance for CCM mode, C is the output capacitor, R is the nominal load, Db is the duty cycle and 𝐷 𝑏 ′=(1 − 𝐷 𝑏 ). Considering the modulation gain KPWM, the loop gain for the current-loop is expressed in (38): The current compensator regulates the battery current at the reference value (5A). The frequency-analysis parameters for the buffer stage are given in Table IV.…”

Section: Buffer Stage Topologymentioning

confidence: 99%

Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Once the abnormality in the grid is identified, it is not recommended to disconnect DGs instantaneously, as it may affect the grid stability [113]. Hence, it is recommended by the grid codes to impose fault ride through or low voltage ride through, which involve the PV system remaining connected with the grid and injecting a reactive current into the grid to maintain power stability and assist in voltage recovery [114,115].…”

Section: Low Voltage Ride Through (Lvrt)mentioning

confidence: 99%

A Review on Artificial Intelligence Applications for Grid-Connected Solar Photovoltaic Systems

et al. 2021

Self Cite

View full text Add to dashboard Cite

The use of artificial intelligence (AI) is increasing in various sectors of photovoltaic (PV) systems, due to the increasing computational power, tools and data generation. The currently employed methods for various functions of the solar PV industry related to design, forecasting, control, and maintenance have been found to deliver relatively inaccurate results. Further, the use of AI to perform these tasks achieved a higher degree of accuracy and precision and is now a highly interesting topic. In this context, this paper aims to investigate how AI techniques impact the PV value chain. The investigation consists of mapping the currently available AI technologies, identifying possible future uses of AI, and also quantifying their advantages and disadvantages in regard to the conventional mechanisms.

show abstract

Advanced Control Strategy With Voltage Sag Classification for Single-Phase Grid-Connected Photovoltaic System

Cited by 44 publications

References 36 publications

A Comparison of Inverter Control Modes for Maintaining Voltage Stability During System Contingencies

A Comparison of Inverter Control Modes for Maintaining Voltage Stability During System Contingencies

Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output

A Review on Artificial Intelligence Applications for Grid-Connected Solar Photovoltaic Systems

Contact Info

Product

Resources

About