Systematic Design of the Hybrid Damping Method for Three-Phase Inverters With High-Order Filters

Ye, Jie; Shen, Anwen; Zhang, Zhixiong; Wu, Fengshun

doi:10.1109/tpel.2016.2637377

Cited by 34 publications

(13 citation statements)

References 30 publications

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“…LCL filter is used in the proposed system to eliminate the harmonics effect [35]. The LCL filter is shown in Figure 3, and the limits of it is parameters can be calculated by (12).…”

Section: Proposed System Design 31 Lcl Filtermentioning

confidence: 99%

“…The LCL filter has better performance of harmonic attenuation and lower cost compared with other types [1]− [3]. To enhance the performance of GCI with filter, many control strategies are used such as proportional resonance (PR) [4] and proportional integral (PI) controllers with passive damping method [5], [6], active damping method [7]− [10] and hybrid damping method [11], [12]. The damping methods are used to enhance the performance of PR and PI controllers by reduction the resonance effect, in another hand, these methods add extra cost like extra power in passive damping method and extra number of sensors in active damping method.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and design of photovoltaic three-phase grid-connected inverter using passivity-based control

Abed

Hassan

Hameed

2022

IJPEDS

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This paper presents photovoltaic three-phase grid-connected inverter with an inductor-capacitor-inductor (LCL)-filter. For robustness against variation of filter parameters and external disturbance, the passivity-based control (PBC) method has been adopted. In this method, there are two interactively coupled feedforward terms and three damping gains in the control loops which are designed to limit the steady state error of grid current. Boost converter with P&O maximum power point tracker (MPPT) is used for each photovoltaic (PV) string to extract maximum power and to raise the PV voltage to a value suitable for the grid-connected inverter. The outputs of all boost converters are connected in parallel and controlled to fixed reference voltage using proportional-integral (PI) controller to make the direct-current (DC) link voltage robust against variations in sun radiation intensity and system parameters change. The suggested system is analyzed, designed and simulated using PSIM program. 1 kW, 2kW, and 3kW PV systems connected to grid of 220V/50Hz are tested and the results show the validity of the suggested grid-connected PV systems and robustness against filter parameters variation.

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“…LCL filter is used in the proposed system to eliminate the harmonics effect [35]. The LCL filter is shown in Figure 3, and the limits of it is parameters can be calculated by (12).…”

Section: Proposed System Design 31 Lcl Filtermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis and design of photovoltaic three-phase grid-connected inverter using passivity-based control

Abed

Hassan

Hameed

2022

IJPEDS

View full text Add to dashboard Cite

show abstract

“…There are two methods of resonance suppression for LCL inverter: passive damping method [8,9] and active damping method [10][11][12][13]. In the active damping method, actual resistance in the system is not introduced, using the control algorithm to increase the virtual resistance to achieve damping to suppress resonance; therefore, the system will not cause power loss.…”

Section: Single Inverter Grid-connected Resonance Suppression Measuresmentioning

confidence: 99%

Research on Resonance Mechanism and Suppression Technology of Photovoltaic Cluster Inverter

Wan

Zhang

2018

Energies

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Photovoltaic cluster power generation can improve the power generation efficiency of photovoltaic power plants, but the photovoltaic cluster inverter will produce resonance after the grid, affecting the safe and stable operation of power systems. In order to ensure the reliability of power supply, the resonant generation mechanism of photovoltaic cluster system is studied in this paper, and the resonant characteristics are analyzed, the control strategy of RC-type global resonance suppression and Thyristor Switching RC (TSRC) circuit are proposed, to suppress the resonance of the photovoltaic cluster system. The effectiveness of the control method is verified through simulation and experiment. The experimental results show that the resonance can be effectively suppressed, and the photovoltaic cluster system can be safely and stably connected to the power grid to ensure the reliability of power supply.

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“…high-order filter configuration, linear current control techniques in static or rotating coordinates need to be combined with effective active or passive damping schemes to suppress the filter resonance and improve the inverter stability [3]- [10]. Nevertheless, active damping is vulnerable to the digital delay and parametric variations [11], and passive damping brings in additional power loss and degrades the filter attenuation [2], [4], [5]. Alternatively, the nonlinear boundary control technique is also suitable for gridconnected inverters with high order power filters [12]- [15].…”

Section: Introductionmentioning

confidence: 99%

A Decoupled Hybrid Current Control for Improving the Performance of 60° DPWM-Based Three-Phase Grid-Connected Inverter

Wang

Xie

et al. 2020

IEEE Access

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Nonlinear boundary control technique can offer superior dynamic behavior and eliminate the LCL-filter resonance in the grid-connected inverter. However, the chattering might be aroused by the distorted intracycle voltage information in the control law. It becomes worse when the nonlinear boundary controller is directly applied in three-phase three-wire inverter configuration. A hybrid current control scheme utilizing the decoupled predictive hysteresis capacitor current controller integrated with the linear grid current controller is proposed in the paper. By applying the 60 • discontinuous pulse-width modulation scheme and using the virtual dual-buck decoupled structure, two separate sets of switching criteria for dictating the switching states of two specific half-bridge legs are formulated to avoid the interactions amongst phases. A small-signal ac model is also built to study the transfer characteristics of such hybrid current controlled inverter system. Simulation and experimental results have been offered to evaluate the effectiveness of the proposed method. Both results meet the theoretical predictions.

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Systematic Design of the Hybrid Damping Method for Three-Phase Inverters With High-Order Filters

Cited by 34 publications

References 30 publications

Analysis and design of photovoltaic three-phase grid-connected inverter using passivity-based control

Analysis and design of photovoltaic three-phase grid-connected inverter using passivity-based control

Research on Resonance Mechanism and Suppression Technology of Photovoltaic Cluster Inverter

A Decoupled Hybrid Current Control for Improving the Performance of 60° DPWM-Based Three-Phase Grid-Connected Inverter

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