A novel multi-loop control strategy for PWM converter based on LCL filter

Zhang, Hao; Lu-yang, Wang; Xingwu, Yang; Bai, Yang

doi:10.1109/peac.2014.7038047

Cited by 8 publications

(5 citation statements)

References 5 publications

(1 reference statement)

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“…The current ripple of 1 i also should be suppressed in order to reduce power lose and temperature rise of the converter-side inductor [5]. Substituting 0 0.5 α = into (6), (7), one can get (8), (9). According to (8) and ( 9), the influence of change of α around 0 0.5 α =…”

Section: A Selection Of Total Inductancementioning

confidence: 99%

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Design of LCL-Filter with Active Damping for Active Power Filter

Wang

Tang

Gao

2013

AMM

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In this paper, the influence of gird-side and inverter-side inductance on LCL-filter performance is studied. The design method of LCL-filter applied in three-phase shunt active power filter (SAPF) is proposed. An active damping strategy using the current feedback of the filter capacitor is adopted to suppress the resonance. A practical example is designed using the proposed design procedure. Finally, Simulation and experimental results verify the feasibility of the design method.

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Section: A Selection Of Total Inductancementioning

confidence: 99%

“…Active methods suppress resonance through the control strategy which cause no extra power lose. In this paper, an active method based on the feedback of capacitor current [7] is put into use. ( ) 1 ( ) ( )…”

Section: Active Damping For Lcl-filtermentioning

confidence: 99%

Design of LCL-Filter with Active Damping for Active Power Filter

Wang

Tang

Gao

2013

AMM

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“…The promising solution is the three cascade control to get all three state variable information. To intensify the stability of the system, H. Zhang et al [16] have incorporated an additional capacitor current-loop feedback along with a traditional double-loop control system. However, the shortcoming of this technique is the need for more sensor counts for getting all three measuring points.…”

Section: Introductionmentioning

confidence: 99%

Cascaded control for LCL filter based grid‐tied system with reduced sensors

Kumari

Jain

2022

IET Power Electronics

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This work implements a cascaded control for the LCL filter-based grid-connected neutral point clamped (NPC) inverter with the reduced sensor. The conventional three-loop control requires two current sensors for the inverter side, two voltage sensors for the voltage side, and two current sensors for the grid side in total for sensing. This work proposes a novel cascaded control scheme that allows a considerable reduction of grid-side current sensors and capacitor-side voltage sensors. Only two inverter-side current sensors are required for the same. The sensing point is implemented by the proposed estimation algorithm. As an outcome, the hardware complexity, weight, size, and implementation cost of the system are downsized. A comparative assessment is performed between the conventional technique and the proposed methodology. The system is analysed for grid inductance and LCL filter parametric variations in order to assure the robustness and stability of the system. In addition, the system is also investigated for the influence of digital control delay. The implemented system offers enhanced system stability and improved dynamic performance. In order to meet grid regulation, it offers an economical solution. The proposed system is justified by simulated results on the MATLAB/Simulink platform and verified by the experimental results.

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“…Taken the three-phase three-wire APF as an example, this paper firstly introduces the design of the DC voltage controller [10 -13]. Then the relationship between DC voltage and the power loss as well as the compensation performance of APF is analysed [14,15]. Finally, a new control scheme with a droop controller is developed to regulate DC voltage [16].…”

Section: Introductionmentioning

confidence: 99%

A DC Voltage Control Strategy for Active Power Filter

Cao¹,

Zhou²,

Li³

et al. 2016

TOEEJ

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Active Power Filter (APF) is capable of changing the size and frequency of harmonics as well as changes in reactive power compensation. It is important to control the stability of the DC-link capacitor voltage stability for it. For DC voltage controls of APF, there are two important achievements. First, it is indicated that the control of DC voltage directly affects the compensation performance of APF. Second, the value of DC voltage influences the power loss of APF. This paper firstly introduces the design of the DC voltage controller. Then the relationship between DC voltage and the power loss as well as the compensation performance of APF is analyzed. Finally, a new control scheme with a droop controller is developed to regulate DC voltage.

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A novel multi-loop control strategy for PWM converter based on LCL filter

Cited by 8 publications

References 5 publications

Design of LCL-Filter with Active Damping for Active Power Filter

Design of LCL-Filter with Active Damping for Active Power Filter

Cascaded control for LCL filter based grid‐tied system with reduced sensors

A DC Voltage Control Strategy for Active Power Filter

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