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Magnetic Integration of LCL Filters
2017An LCL filter has two individual inductors. In order to reduce the volume of magnetic components, magnetic integration of these two inductors is introduced in this chapter. First, the integration method of the two inductors of an LCL filter is proposed, and the magnetic circuit model of integrated inductors is built.
Xinbo Ruan +5 more
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A Modified Discontinuous PWM Method for Three-Level Inverters With the Improved LCL Filter
IEEE transactions on power electronicsThe three-level inverter with improved LCL filter is employed in photovoltaic system to improve the power quality and suppress the leakage current. Nevertheless, this type of topology has the challenge of neutral point (NP) voltage balance, common mode ...
Zuohang Hu +4 more
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IEEE transactions on industrial electronics (1982. Print)
The traditional deadbeat control-model predictive control (DBC-MPC) algorithm is often adopted to reduce the computational requirements. However, for the selection of the expected voltage vector for a grid-connected power converter with an inductor ...
Bingtao Zhang +8 more
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The traditional deadbeat control-model predictive control (DBC-MPC) algorithm is often adopted to reduce the computational requirements. However, for the selection of the expected voltage vector for a grid-connected power converter with an inductor ...
Bingtao Zhang +8 more
semanticscholar +1 more source
A Robust Controller for a Grid-Tied Inverter Connected Through an LCL Filter
IEEE Journal of Emerging and Selected Topics in Industrial Electronics, 2021This article presents a control strategy for three-phase inverters connected to grids through an LCL output filter. For this topology, it is known that when output current and capacitor current are fed back through certain optimal gains, the system is ...
J. Gonzalez, C. Busada, J. Solsona
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2015 IEEE Energy Conversion Congress and Exposition (ECCE), 2015
This paper proposes a novel LCL-filter design method and its current control for grid-connected converters. With the proposed design method, it is possible to set the resonance frequency of the LCL-filter to be higher than the Nyquist frequency, i.e. half of the system sampling frequency, and this observation is so far not discussed in the literature ...
Yi Tang +3 more
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This paper proposes a novel LCL-filter design method and its current control for grid-connected converters. With the proposed design method, it is possible to set the resonance frequency of the LCL-filter to be higher than the Nyquist frequency, i.e. half of the system sampling frequency, and this observation is so far not discussed in the literature ...
Yi Tang +3 more
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IEEE Journal of Emerging and Selected Topics in Power Electronics
The forward Euler method is well known for its simplicity and ease of implementation in permanent magnet synchronous motor (PMSM) controls. However, it introduces significant errors, which become more severe when establishing the discrete-time model of a
Zhenxing Cheng +3 more
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The forward Euler method is well known for its simplicity and ease of implementation in permanent magnet synchronous motor (PMSM) controls. However, it introduces significant errors, which become more severe when establishing the discrete-time model of a
Zhenxing Cheng +3 more
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Design of LCL filter for wind power inverter
2010 World Non-Grid-Connected Wind Power and Energy Conference, 2010An LCL filter is more and more widely used in wind power inverters. However, it may easily result in instability due to resonance, which makes it difficult for stability control without damping. A voltage oriented control strategy under the dq synchronization reference frame is adopted based on the mathematical model of the three-phase inverter for ...
Xing Wei +3 more
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Three-Phase Transformerless PV Inverter With Reconfigurable LCL Filter and Reactive Power Capability
IEEE transactions on power electronicsConstructing LCL filter with only three inductors is made possible by a topology called the reconfigurable filter in three-phase converters, in which the filter is reconfigured six times during the ac line cycle.
J. Dadkhah, C. N. Ho, K. K. Siu
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Electromagnetic Integration of Decoupled LCL-Filter for Grid-Tied Converters With FMLF Technique
IEEE transactions on power electronicsLCL-type filters, compared to L- or LC-type filters, are preferred in grid-tied converters due to their better capability of harmonic suppression.
Panbao Wang +4 more
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Resonance Damping Methods of LCL Filter
2017The control challenges of LCL-type grid-connected inverter arise from the resonance problem. At the resonance frequency, the LCL filter resonance causes a sharp phase step down of −180° with a high resonance peak. This resonance peak would easily lead to system instability and should be damped.
Xinbo Ruan +5 more
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