Inverter Multi-Machine Grid Integration Resonance Suppression Strategy by Active Damping
Abstract
:1. Introduction
2. Literature Review
3. Research Methodology
3.1. Establishment of System Model
3.2. Active Damping Strategy Design
3.3. Simulation Environment Construction
4. Results and Discussion
4.1. Basic Performance Evaluation
4.2. Resonance Suppression Effect
4.3. System Stability Analysis
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Parameter Category | Parameter Name | Value |
---|---|---|
Grid parameters | Power voltage | 400 V |
Grid frequency | 50 Hz | |
Grid inductance | 1.2 mH | |
DC side parameters | DC side voltage | 750 V |
Inverter parameters | Inverter side inductor 1 | 2.5 mH |
Inverter side inductor 2 | 1.5 mH | |
Filter parameters | filter capacitor LCL filter inductor 1 (inverter side) LCL filter inductor 2 (grid side) | 0.35 µF 2.5 mH 1.5 mH |
Control parameters | On-off level | 16 kHz |
Sampling frequency | 16 kHz | |
Performance parameters | Grid-connected rated power | 12 kW |
Power conversion efficiency parameters | Maximum conversion efficiency | 96% |
Inverter response parameters | Response time | 30 ms |
Power Grid Conditions | Resonance Suppression Effect (%) | System Stability Improvement (%) | Frequency Fluctuation (Hz)*100 | Improvement in Voltage Stability (%) | Power Factor Improvement (%) | Peak Current Reduction (%) | THD Reduction (%) |
---|---|---|---|---|---|---|---|
High impedance, long line | 55 | 22 | 12 | 6 | 5 | 27 | 32 |
Low impedance, short line | 42 | 15 | 25 | 4 | 3 | 18 | 22 |
Medium impedance, standard | 48 | 18 | 18 | 5 | 4 | 23 | 25 |
High impedance, high temperature | 50 | 20 | 10 | 5 | 6 | 25 | 30 |
Low impedance, low temperature | 38 | 12 | 28 | 3 | 2 | 16 | 18 |
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Hou, T.; Jiang, Y.; Cai, Z. Inverter Multi-Machine Grid Integration Resonance Suppression Strategy by Active Damping. Energies 2024, 17, 3791. https://doi.org/10.3390/en17153791
Hou T, Jiang Y, Cai Z. Inverter Multi-Machine Grid Integration Resonance Suppression Strategy by Active Damping. Energies. 2024; 17(15):3791. https://doi.org/10.3390/en17153791
Chicago/Turabian StyleHou, Tianhao, Yunhao Jiang, and Zishuo Cai. 2024. "Inverter Multi-Machine Grid Integration Resonance Suppression Strategy by Active Damping" Energies 17, no. 15: 3791. https://doi.org/10.3390/en17153791