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A control strategy for GFM photovoltaic units without energy storage considering reserved power

Year: 2024

Type: article

Abstract: In engineering applications， the use of energy storage to support grid-forming photovoltaic （GFM PV） units faces challenges such as high construction costs and difficulties in land negotiations. However， without energy storage， grid-forming control struggles to find the operating point of maximum power point tracking （MPPT） during weather changes. To address this， a grid-forming control strategy that considers reserved power and integrates virtual synchronous control （VSC） is proposed. Additionally， a controller is designed to prevent DC bus voltage collapse， stabilizing the DC bus voltage. A control model for GFM PV units without energy storage， considering reserved power， is developed in Simulink， and simulations are conducted on the RT-LAB platform in conjunction with physical power electronics to obtain the simulation waveform. The simulation results demonstrate that the proposed strategy can find the operating point of MPPT in various scenarios， ensuring stable outputs of active and reactive power， thereby verifying the effectiveness of the control strategy.

Source: DOAJ (DOAJ: Directory of Open Access Journals)

DOI: 10.19585/j.zjdl.202412008

Authors: CAI Yuze, HU Pan, CAO Kan, WANG Bo, LI Chu, LI Zhenxing

Institutions: China Three Gorges University, State Grid Corporation of China (China), State Grid Hubei Electric Power Company Electric Power Research Institute

Language: English

Topic: Microgrid Control and Optimization

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure, Climate action

Open Access status: green

OpenAlex ID: W6907047655

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