Passivity Fractional-Order Sliding-Mode Control of Grid-Connected Converter With <i>LCL</i> Filter

Liu, Bo; Mao, WenZe; Lu, PengJie; Rodríguez, José; Guerrero, Josep M.; Kil, To CHONG; Teng, YunLong

doi:10.1109/tpel.2023.3244754

Cited by 13 publications

(3 citation statements)

References 40 publications

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“…where K p .0, K i .0 and K d .0 are the gains of the designed surface, u = À e. Thus, compared with conventional FOSMS (8) and the NFOSMS (12), the improvement of the novel sliding mode surface is shown in the following two aspects:…”

Section: The Proposed Fractional Order Sliding Mode Composite Control...mentioning

confidence: 99%

“…Among the numerous SMC strategies, the fractional order SMC method combines the advantages of the fractional order calculus operation, and the SMC strategy, with a small steady-state error, high flexibility and strong robustness. 12–14 Due to its numerous advantages, this particular area of control has garnered significant attention from many research scholars. In El Ferik et al’s 15 paper, a fractional order SMC was designed for the quadrotor slung-load system.…”

Section: Introductionmentioning

confidence: 99%

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One new composite control based smooth nonlinear fractional order sliding mode algorithm and disturbance compensation for PMSM with parameter uncertainties

Gao,

Pan,

Zhu

2023

Advances in Mechanical Engineering

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To achieve high-quality control of PMSM with parameter uncertainties, a nonlinear smooth fractional order sliding mode composite control (NSFOSMCC) strategy is designed in this paper. This approach incorporates a novel nonlinear smooth fractional order sliding mode controller, a novel adaptive super-twisting (AST) algorithm, and a modified nonlinear extended state observer (ESO) to achieve enhanced motor performance. To effectively overcome the disadvantages of simplicity and toughness associated with the conventional fractional order sliding mode controller, a novel nonlinear smooth fractional order sliding mode controller is designed. A novel AST technique is introduced to effectively weaken chattering issues. The modified nonlinear ESO is used to estimate the uncertainty parameters of the PMSM. By combining the modified nonlinear ESO with the latest sliding mode controller, a new composite controller called NSFOSMCC strategy is developed for PMSM. The proposed NSFOSMCC strategy, utilizing a combination of “feedforward plus feedback,” is implemented for PMSM with parameter uncertainties. The reliability and stability of the controller are thoroughly established through the utilization of the Lyapunov stability theorem. Furthermore, comparative results show strong evidence supporting the effectiveness of the novel composite control strategy.

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Section: The Proposed Fractional Order Sliding Mode Composite Control...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

One new composite control based smooth nonlinear fractional order sliding mode algorithm and disturbance compensation for PMSM with parameter uncertainties

Gao,

Pan,

Zhu

2023

Advances in Mechanical Engineering

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“…Grid-connected inverter controlled by FOSMC, the inverter capacity is 10 kW [11]. The FOSMC mitigated sub synchronous oscillations in wind farms [12]. The micro grid is controlled by FOSMC, the micro grid inputs are wind, PV, and fuel cells [13].…”

Section: Introductionmentioning

confidence: 99%

Fractional order sliding mode control for power quality improvement in the distribution system

Sreejyothi,

Kumar,

Jayakumar

2024

IJAPE

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This paper presents fractional order sliding mode control (FOSMC) based distribution system compensator (DSTATCOM) for power quality improvement in the distribution system. The three-phase two-level inverter-based voltage source converter (VSI) with DC-link capacitor is used as DSTACOM. In this paper, the FOSMC-based DSTATCOM improves supply current harmonics, load balancing, and reactive power and reduces THD. The sinusoidal pulse width modulation (SPWM) is generating gating pulses for VSI. The performance of the presented system is verified in MATLAB/Simulink software. The simulations are verified source voltage, current and load current as well as compensating current. The FOSMC has maintained a constant supply current when connecting non-linear load. The hardware results are also presented in the manuscript. The hardware results are supply current, voltage, compensating current, and load current.

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Harmonic suppression of active disturbance rejection control for virtual synchronous generators

Lin,

Liu,

Wang

2024

Circuit Theory & Apps

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SummaryVirtual synchronous generators (VSGs) are comprised of an outer power loop and inner cascaded control loops. The dynamic performance of the output interface is severely degraded when microgrid loads exhibit variability and nonlinearity. Therefore, robustness against load disturbances must be possessed by any voltage control scheme. In this paper, a proportional resonance‐linear active disturbance rejection control (PR‐LADRC) scheme based on an improved linear extended state observer (ILESO) is proposed for VSG voltage control. In comparison with the traditional linear extended state observer (LESO), the differential state variable of the output voltage is utilized to increase the observation bandwidth; consequently, the proposed ILESO can effectively overcome the disadvantage of phase lag when tracking disturbances. Additionally, a proportional resonance controller is incorporated into the LESO feedforward channel to suppress voltage harmonics. The proposed scheme enhances the disturbance observation bandwidth compared to traditional strategies, resulting in a substantial improvement in both the disturbance observation capability of LADRC and the harmonic suppression ability of the VSG system. Theoretical analysis and simulations are conducted to validate the effectiveness of the proposed PR‐LADRC approach.

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Passivity Fractional-Order Sliding-Mode Control of Grid-Connected Converter With LCL Filter

Cited by 13 publications

References 40 publications

One new composite control based smooth nonlinear fractional order sliding mode algorithm and disturbance compensation for PMSM with parameter uncertainties

One new composite control based smooth nonlinear fractional order sliding mode algorithm and disturbance compensation for PMSM with parameter uncertainties

Fractional order sliding mode control for power quality improvement in the distribution system

Harmonic suppression of active disturbance rejection control for virtual synchronous generators

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