Decentralized control strategy for fuel cell/PV/BESS based microgrid using modified fractional order PI controller

Suresh, Velamuri; Pachauri, Nikhil; Vigneysh, T.

doi:10.1016/j.ijhydene.2020.11.050

Cited by 27 publications

(17 citation statements)

References 38 publications

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“…As there is no coordination, the full potential of distributed control devices is underexploited, which may lead to sub-optimal control solutions [28,41].…”

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confidence: 99%

“…A disadvantage of PIDs is that they cannot track the sine reference signal while preventing steady-state error [41,50]. Controllers do not work well in the presence of harmonics and out-of-balance voltages or currents [50].…”

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confidence: 99%

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confidence: 99%

“…Proportional Integral-PI [41,46,50,51,[61][62][63][64][65]. PI controllers have a simple structure, they are simple to design and install, but their performance is dependent on gain parameters and parametric uncertainties [41,50,[63][64][65]. Various PI controllers are used to regulate the voltage of the DC coupling and to control the AC current of inverter-based PV interface systems [66].…”

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confidence: 99%

“…It necessitates a precise mathematical relationship and is thus susceptible to parameter change [67]. PI operation will deteriorate in the case of a sudden change in operating conditions, in the case where it cannot track the sine wave reference without steady-state error [41,50].…”

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confidence: 99%

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Analysis of Voltage and Reactive Power Algorithms in Low Voltage Networks

Stanelytė

Radziukynas

2022

Energies

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The rapid development of renewable energy sources and electricity storage technologies is further driving the change and evolution of traditional energy systems. The aim is to interconnect the different electricity systems between and within countries to ensure greater reliability and flexibility. However, challenges are faced in reaching it, such as the power grid complexity, the system control, voltage fluctuations due to the reverse power flow, equipment overloads, resonance, incorrect island setting, and the diversity of user needs. The electricity grid digitalization in the market also requires the installation of smart devices to enable real-time information exchange between the generator and the user. Inverter-based distributed generation (DG) may be used to control the grid voltage. Smart PV inverters have the capability to supply both inductive and capacitive reactive power to control the voltage at the point of interconnection with the grid, and only technical parameters of smart PV inverters limit this capability. Reactive power control is related to ensuring the quality of voltage in the electricity distribution network and compensating reactive power flows, which is a technical–economic aspect. The goal of this research is to present an analysis of controllers that supply reactive power to the electrical grid via PV systems. This research analyzes recent research on local, centralized, distributed, and decentralized voltage control models in distribution networks. The article compares various approaches and highlights their advantages and disadvantages. The voltage control strategies and methodologies mentioned in the article can serve as a theoretical foundation and provide practical benefits for PV system development in distribution networks. The results of the research show that the local voltage control approach, as well as linear and intelligent controllers, has great potential.

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“…As there is no coordination, the full potential of distributed control devices is underexploited, which may lead to sub-optimal control solutions [28,41].…”

mentioning

confidence: 99%

mentioning

confidence: 99%