Active Power Control of Voltage-Controlled Photovoltaic Inverter in Supporting Islanded Microgrid Without Other Energy Sources

Wang, Zhenxiong; Hao, Yi; Zhuo, Fang; Lv, Nian; Ma, Zhao; Wang, Feng; Zhou, Weiqing; Ji, Liang; Fan, Hui

doi:10.1109/jestpe.2021.3069700

Cited by 45 publications

(12 citation statements)

References 40 publications

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“…Different authors [29], [30], [31] present methods to estimate the MPPT from measured irradiance and PV cell temperature, which can be used to implement a power reduction strategy. Other active power regulation strategies are based on curve fitting [32], [33], [34], [35]. The most recent one [34] accomplishes real-time estimation of the MPP and model parameters via a curve fitting method derived from single-diode PV model.…”

Section: Algorithm For Power Regulation a State Of The Artmentioning

confidence: 99%

Power Generation Control Algorithm for the Participation of Photovoltaic Panels in Network Stability

Cristaldi

Faifer

Laurano

et al. 2023

IEEE Trans. Instrum. Meas.

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The push for renewable energy and sustainable development has led to an ever-increasing integration of grid-tied photovoltaic (PV) systems. To maximize revenue, this resource generally operates in maximum power point trackers (MPPT) mode. However, to ensure grid stability and reliability, system operators will continue to introduce new requirements, eventually forcing PV plants to adhere to primary frequency regulation. To perform this task, PV plants will have to be capable of operating outside the MPP and varying their power production, to maintain an active power reserve, according to grid request. This article presents an innovative model-based (MB) tracking algorithm devoted to supporting power network regulation. Due to the updated formulation, the algorithm can vary the power curtailment according to a reduction factor given by the power system operators. Results show the remarkable performance and accuracy of the new algorithm, providing power regulation capability in the range 20%-100% of the maximum available power. Moreover, the impact of the employment of constant reduction coefficients on the algorithm performances has been evaluated. Validation has been performed based on the data collected over an observation interval of more than six months. Due to its flexibility, this could be the basis for the participation of PV systems to frequency regulation.

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Section: Algorithm For Power Regulation a State Of The Artmentioning

confidence: 99%

Power Generation Control Algorithm for the Participation of Photovoltaic Panels in Network Stability

Cristaldi

Faifer

Laurano

et al. 2023

IEEE Trans. Instrum. Meas.

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“…For the photovoltaic (PV) generation, the traditional maximum power point tracking (MPPT) control cannot support the voltage and frequency in ac-bus in the prosumer when it is disturbed (Wang et al, 2022). If the voltage and frequency cannot meet the power quality requirement, the prosumer will shut down to avoid deteriorating the ac-bus.…”

Section: Introductionmentioning

confidence: 99%

The coordinated operation strategy of multi-type power generations in different modes in prosumer with high renewables

Meng²,

Su³

2023

Front. Energy Res.

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The renewable energy with distributed generation is widely used because of the cleanliness and sustainability. However, when high renewables connect to the grid, the randomness and intermittent of the renewable energy will deteriorate the performance. As the important interface between distributed generations and power grid, the prosumer can contribute to the improvement of the renewable energy penetration if stable and reliable operation of the power supply is realized. The prosumer has multi-type generations, loads and auxiliary converters, where the characteristics interact each other. Moreover, due to the complicated grid states, the prosumer may operate in different conditions. Therefore, the research on the coordinated operation control strategy of the multiple electrical facilities is necessary in the prosumer with high renewables. In this paper, the AC/DC hybrid prosumer is established with multi-type distributed generations, loads and auxiliary converters. The prosumer can operate in normal grid-connected mode and grid-fluctuation mode. In different modes, the cooperation control of the power converter in the prosumer is proposed, which changes according to the grid demands. When over-limited grid voltage and frequency fluctuation are detected in the point of common coupling, the prosumer can switch from normal grid-connected mode to grid-fluctuation mode to provide voltage and frequency support. Finally, the simulation results based on Matlab/Simulink is employed to verify the effectiveness of the proposed control strategy.

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“…The control methods for the PV system in standalone and grid-tied modes are shown in [17]. An effective voltage control algorithm is used to control the output power of the PV inverter and fulfils the load demand [18]. The utilization of multiple inverters is realized in utility-interactive autonomous microgrids with seamless-mode transition operations in [19].…”

Section: Introductionmentioning

confidence: 99%

“…The active power control of rising RERs is an emergent concern. An effective control approach [18] is used for the two‐stage PV inverter through the voltage control to regulate the PV inverter output power and meet the load demand. The PV solar power participates in the utility grid support and ensures that the MG is economically more stable and robust.…”

Section: Introductionmentioning

confidence: 99%

Utility intertie multi‐photovoltaic‐inverters‐based microgrid control for solar rooftop

Chauhan

Singh

2022

IET Energy Syst Integration

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The solar photovoltaic (PV)-based microgrid is one of the most ideal renewable energy resources. This paper presents a utility grid intertie multi-PV-inverter-based microgrid (MG) control for the solar rooftop application. The main and ancillary voltage source converters (VSCs) DC links are assimilated with PV arrays of independent maximum power point tracking (MPPT) algorithms for the economical and efficacious single-stage configuration. At the point of common coupling (PCC), parallel VSCs arrangement increases the MG's power rating with distinctive local loads. In normal circumstances, the current control methodology is employed by the main VSC under the grid-interactive mode. Conversely, in some grid contingency conditions under the isolated mode, its control transfers to the voltage control, which regulates the frequency and the voltage at PCC and acts like a grid-forming inverter. The ancillary VSC operation is implemented with the current control algorithm. The main VSC supplies the active power towards the grid and accomplishes the load requirement, whereas the ancillary VSC retains its load demand in a grid-interactive mode and also regulates the load requirement in an islanded mode of operation. The utilization of feed-forward components for PV arrays powers in the VSCs current control techniques improves the MG dynamic performance. The seamless mode transfer performance of the main VSC is implemented via a power electronics switch. The MATLAB software is used to model a microgrid and its performance is analysed via RT-LAB in real time through the OPAL-RT (OP4510) controller for various scenarios, that is, varying solar insolation, load alterations and unbalanced non-linear loads. The utilization of the modified Kwong's algorithm-based current control enhances the power quality such as harmonics current elimination and improvement in the power factor. The voltage profile of PCC voltages is enhanced via using a modified Kwong's algorithm-based filter in the voltage controller. The modified Kwong's algorithm has fast convergence, reduces misadjustments and gives very good performance compared to the least-mean-square (LMS) and Kwong's approaches. The total harmonic distortion (THD) of grid currents and PCC voltages THD in an isolated mode is found according to the limits of the IEEE-519 standard.

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Active Power Control of Voltage-Controlled Photovoltaic Inverter in Supporting Islanded Microgrid Without Other Energy Sources

Cited by 45 publications

References 40 publications

Power Generation Control Algorithm for the Participation of Photovoltaic Panels in Network Stability

Power Generation Control Algorithm for the Participation of Photovoltaic Panels in Network Stability

The coordinated operation strategy of multi-type power generations in different modes in prosumer with high renewables

Utility intertie multi‐photovoltaic‐inverters‐based microgrid control for solar rooftop

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