Control of Micro-grid by Discretized PR Controller Using Tustin Frequency Pre-wrapping Method

Mandava, Srihari; Gudipalli, Abhishek; Prabha, N. Amutha; Rajini, G. K.

doi:10.1007/978-981-15-8221-9_215

Cited by 4 publications

(2 citation statements)

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“…Regarding of the control techniques of the inverters, Dead Beat (DB), hysteresis, Proportional Integral (PI), and PR controllers are the main control techniques for incorporating DG equipped with inverters into the power grid [21][22][23][24][25][26][27]. Reference [21] proposed a hysteresis control for grid connected inverter in MG.…”

Section: Introductionmentioning

confidence: 99%

“…PR controllers are preferred over PI controllers in grid-connected converters because they have a high gain at the resonating frequency, which eliminates steady-state error, allows for fast tracking of the reference signal, can adapt to grid frequency drift, and are simple to implement. The PR control approach is often used when the intended goal is to compensate for a large number of harmonics underlying sinusoidal signals and minimize steadystate error [23]. However, in order to achieve best performance, the main grid frequency and resonant frequency must be identical.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Cooperative Control Technique for Hybrid AC/DC Smart Microgrid Converters

Jasim

Bureš

et al. 2023

IEEE Access

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This study proposes a novel technique of cooperative control for a distributed hybrid DC/AC Microgrid (MG) by designing a digital Infinite Impulse Response (IIR) filter-based Proportional-Resonant (PR) current controller. This controller adopts an Adaptive Neuro Fuzzy Inference System (ANFIS) trained by Particle Swarm Optimization (PSO) to control inverter output current while tracking Maximum Power Point (MPP). A hybrid ANFIS-PSO extracts maximum power from both inverter and boost converter-based solar Photovoltaics (PVs) systems quickly and with zero oscillation tracking. The proposed PR controller cancels harmonics while achieving high gain at the resonant frequency (grid frequency). The PR controller offers quick reference signal tracking, grid frequency drift adaptation, easy system design, and no steadystate error. Moreover, this investigation features a PR controller frequency-domain analysis. The proposed technique smooths voltage and improves steady-state and transient responses. Cooperative control is implemented on an IEEE 14-bus MG with distributed communication. The findings indicate that the proposed control technique can regulate MG voltage to obtain a more stable voltage profile. The adopted MG, made up of dispersed resources, is crucial for assessing power flow and quality indicators in a smart power grid. Finally, numerical simulation results are utilized to verify the recommended technique.

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