Passivity-Based Control of a Doubly Fed Induction Generator System under Unbalanced Grid Voltage Conditions

Huang, Jiao; Wang, Honghua; Wang, Chong

doi:10.3390/en10081139

Cited by 6 publications

(7 citation statements)

References 23 publications

(21 reference statements)

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“…The DFIG is composed of mechanical and electrical parts as shown in Figure 1 (Boualouch et al, 2017; Huang et al, 2017). The DFIG rotor is linked to the grid through back-to-back converter, while its stator is coupled directly to the grid.…”

Section: Dfig Integrated To Wind Power Systemmentioning

confidence: 99%

Sensorless passivity based control of doubly-fed induction generators in variable-speed wind turbine systems based on high gain observer

et al. 2022

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The current study presents a robust sensorless control using passivity based control (PBC) combined with high gain observer (HGO). The proposed controller is applied to control the generated doubly-fed induction generator (DFIG) active and reactive power installed on a variable speed wind energy conversion system. The control objective is used to regulate independently the DFIG stator active and reactive power, which are decoupled by using the field oriented control technique. Additionally, this process leads to reduce the cost of control scheme by eliminating the speed sensor. Firstly, the DFIG is modeled under the port controlled Hamiltonian (PCH) model, as well as the method of simultaneous injection damping. Then, the DFIG is further modeled by assignment passivity based on the simultaneous injection damping and assignment (SIDA-PBC) control of the obtained model under such conditions and a comparison with the fuzzy sliding mode controller is carried out. Furthermore, the HGO is selected in order to estimate the rotor position and the speed from the measurement of the DFIG currents and voltages, and compared with fuzzy sliding mode observer. For testing the proposed control scheme performance, a 1.5 MW DFIG system is developed and simulated using MATLAB/Simulink. The obtained results demonstrate the effectiveness of the proposed control scheme in the presence of various DFIG parameters variation. Additionally, the control objective is achieved without speed sensor.

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Section: Dfig Integrated To Wind Power Systemmentioning

confidence: 99%

Sensorless passivity based control of doubly-fed induction generators in variable-speed wind turbine systems based on high gain observer

et al. 2022

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“…From the above formulas, it can be found that the energy of the ICPT system satisfies (13). Thus, the movable multi-load ICPT system is strictly passive and the PBC strategy can be used in the ICPT system.…”

Section: B Passive Analysis Of Movable Multi-load Icpt Systemmentioning

confidence: 99%

“…This control strategy can effectively make up for a series of problems such as inaccurate parameter setting and poor robust stability in the PI controller [12]. Moreover, the interconnection and damping assignment passivity-based control (IDA-PBC) method allow designing high-performance nonlinear controllers for systems described by port-controlled Hamiltonian with dissipation models (PCHD) [13]. The Hamiltonian function represents, commonly, the physical system energy and can be regarded as the Lyapunov function.…”

Section: Introductionmentioning

confidence: 99%

Passivity-Based Control for Movable Multi-Load Inductively Coupled Power Transfer System Based on PCHD Model

2020

IEEE Access

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A passivity-based control strategy for movable multi-load inductively coupled power transfer (ICPT) system based on PCHD (Port-Controlled Hamiltonian Dissipation, PCHD) model is proposed, which can effectively suppress mutual inductance and load interference. During the movement of the secondary coil of the movable multi-load ICPT system, due to the change of mutual inductance and the randomness of the multi-load, it will cause the transmission power and efficiency to oscillate and generate harmonics. Firstly, in view of the above problems, this paper analyzes the ICPT system under movable multiple loads. The DQ transformation method was used to establish the large-signal mathematical model of the system, and PCHD mathematical model in the DQ domain was established to decouple the active and reactive power. Secondly, the passivity-based controller (PBC) is designed by using the principle of interconnection and damping assignment passivity-based control (IDA-PBC). After that, the second method of Lyapunov function is used for stability analysis, and further verifies the asymptotic stability of the closed-loop system. Finally, the proposed method was verified by MATLAB/Simulink simulation. The simulation results show that the passivity-based controller has stronger robustness in both steady and movable states compared with the PI controller, which effectively suppresses the oscillation and total harmonic distortion caused by the change of mutual inductances and the randomness of the loads.

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“…In the passivity-based control law (24), it is seen that the disturbance value w Pu and w Qu must be available to realize the asymptotical stability of the closed-loop system. From the definition of w Pu and w Qu in (10), if the unmodeled dynamics and errors (ε P and ε Q ) are not considered, the terms w Pu and w Qu can be calculated through (9).…”

Section: Robust Passivity-based Control Strategy Via Disturbance Obsementioning

confidence: 99%

“…For past few years, the passivity-based control has attracted more and more attentions because of the flexible adjustment and simplified control structure and has been applied in power converter control [22,23]. The passivity-based control of the doubly fed induction generator under unbalanced grid voltage is proposed in Reference [24]. However, the passivity-based control is applied to replace the traditional PI (Proportional-Integral) control for system response improvement instead of eliminating the double frequency ripple power.…”

Section: Introductionmentioning

confidence: 99%

Active and Reactive Power Compensation Control Strategy for VSC-HVDC Systems under Unbalanced Grid Conditions

Liu

Zhai

et al. 2018

Energies

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This paper presents a power compensation strategy to suppress the double frequency power ripples of Voltage source converter high-voltage direct current (VSC-HVDC) systems under unbalanced grid voltage conditions. The mathematical control equations of the double frequency ripple power of VSC under unbalanced operating conditions are firstly derived and established, where the dynamic behaviors of the double frequency ripples in active and reactive power are regarded as being driven by current-relevant components and voltage-relevant components, respectively. Based on the equations, a power compensation control strategy of VSC-HVDC is proposed via the passivity-based control with disturbance observer to suppress both the current-relevant and voltage-relevant components in the power ripples. With this control strategy, the double frequency ripples in active and reactive power are suppressed simultaneously and system performance is significantly enhanced with the implementation of the disturbance observer in the passivity-based control. Theoretical stability analysis and simulation cases show the effectiveness and superiority of the proposed strategy.

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Passivity-Based Control of a Doubly Fed Induction Generator System under Unbalanced Grid Voltage Conditions

Cited by 6 publications

References 23 publications

Sensorless passivity based control of doubly-fed induction generators in variable-speed wind turbine systems based on high gain observer

Sensorless passivity based control of doubly-fed induction generators in variable-speed wind turbine systems based on high gain observer

Passivity-Based Control for Movable Multi-Load Inductively Coupled Power Transfer System Based on PCHD Model

Active and Reactive Power Compensation Control Strategy for VSC-HVDC Systems under Unbalanced Grid Conditions

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