Analysis and Thinking on Promoting Coordinated and Orderly Development of New Energy and Energy Storage

Li, C.; Zhang, J.; Feng, Xinqun; Li, G.; Guo, Lei

doi:10.1049/icp.2021.2295

Cited by 4 publications

(2 citation statements)

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“…With a high proportion of renewable energy connected to the grid, the inertia of a power system gradually decreases, making the system less able to resist interference and maintain stable operations. The random and fluctuating nature of renewable energy sources causes fluctuations in the frequency and voltage amplitude of the grid, further exacerbating this adverse situation and seriously threatening the safe and stable operation of a power system [1][2][3]. In order to adapt to the needs of distributed power development, to meet the requirements set out in the certification system, and to increase the grid penetration of distributed power sources, the main grid-connected inverter control schemes are PQ control, VF control, droop control, and virtual synchronous control.…”

Section: Introductionmentioning

confidence: 99%

Virtual Synchronous Generator (VSG) Control Strategy Based on Improved Damping and Angular Frequency Deviation Feedforward

Wang

Xie

2023

Energies

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The output active power of a grid-connected inverter controlled by a traditional virtual synchronous generator (VSG) has the problems of oscillation and steady-state errors. A VSG control strategy based on improved damping and angular frequency deviation feedforward is proposed. This strategy reduces the steady-state error of active power by adding a transient damping link to a traditional VSG damping feedback channel. At the same time, the angular frequency deviation feedforward compensation is used to improve the response speed of the VSG to the active power instruction and reduce the active power overshoot in the dynamic process. First, the VSG active power closed-loop small-signal model is established. The effects of inertia and damping on the dynamic and steady-state performance of the VSG are analyzed by the root locus method. The effect of the proposed control strategy on the system is analyzed by using a closed-loop zero-pole diagram. This strategy improves the precision of active power control the dynamic performance of the system effectively. Finally, the effectiveness and superiority of the proposed control strategy are verified by Matlab/Simulink simulation and semi-physical simulation platform RT-LAB.

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Section: Introductionmentioning

confidence: 99%

Virtual Synchronous Generator (VSG) Control Strategy Based on Improved Damping and Angular Frequency Deviation Feedforward

Wang

Xie

2023

Energies

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“…The study in [1] presented an overview of China's renewable energy development status and analyzed the mechanism of accommodation of renewable energy and the key factors for the country's curtailment of renewable energy. In the studies in [2,3]-based on experiences in advanced electricity markets in Europe and the United States-the consumption capacities of systems could be greatly improved by power delivery transactions and contract-transfer transactions between renewable energy and traditional power plants. With the deepening complexity of the power grid, as well as the complexity of its infrastructure and technical reform, the transmission lines require repair every year [4].…”

Section: Introductionmentioning

confidence: 99%

Research on Maintenance Strategies for Different Transmission Sections to Improve the Consumption Rate Based on a Renewable Energy Production Simulation

Min

Dai

et al. 2022

Energies

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Renewable energy consumption is one of the most important factors in meeting the goal of “30 and 60” in China. However, the maintenance of the transmission section affects the amount of generation transfer, further affecting the consumption of renewable energy. Hence, in this study, a time-series renewable energy production simulation (REPS) is proposed in order to accurately predict the power generation in a simulated situation. According to the results of the REPS, the sensitivity of the different sections’ maintenance can be calculated and determined. The appropriate maintenance strategies can be selected for different situations by comparing the consumption rate; as an example, we conducted a case study. The results show that the quota in the transmission section has higher sensitivity; a larger quota indicates a greater sensitivity to the consumption rate. The results also show that a larger quota is more suitable for maintenance in February or November, since the consumption rate is higher regardless of if it is in a single-transmission-section maintenance strategy or in a two-section simultaneous maintenance strategy.

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A Identification Method of Inertia Distribution Based on Disturbance Propagation Characteristics

Yuan,

Liu

2023

2023 3rd International Conference on Energy Engineering and Power Systems (EEPS)

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Analysis and Thinking on Promoting Coordinated and Orderly Development of New Energy and Energy Storage

Cited by 4 publications

References 0 publications

Virtual Synchronous Generator (VSG) Control Strategy Based on Improved Damping and Angular Frequency Deviation Feedforward

Virtual Synchronous Generator (VSG) Control Strategy Based on Improved Damping and Angular Frequency Deviation Feedforward

Research on Maintenance Strategies for Different Transmission Sections to Improve the Consumption Rate Based on a Renewable Energy Production Simulation

A Identification Method of Inertia Distribution Based on Disturbance Propagation Characteristics

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