Maximum Power Point Tracking for Wind Turbine Using Integrated Generator-Rectifier Systems

Huynh, Phuc; Tungare, Samira; Banerjee, Arijit

doi:10.1109/ecce.2019.8912871

Cited by 8 publications

(13 citation statements)

References 10 publications

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“…The phase-B and phase-C back emfs of each port lag the phase-A back emf by 2π/3 and 4π/3, respectively. An appropriate θ i among different passive ports reduces the total passive-port voltage ripple, thereby, eliminating the need for bulky dc-side filter capacitors to smooth the output power [16]. It will be shown in Section IV that the necessary phase shift is achieved using a specific winding layout.…”

Section: A Generalized Circuit Representation Of the Integrated Generator-rectifier Systemmentioning

confidence: 99%

“…The active rectifier can draw constant power because the equivalent inductances and resistances of all the phases are identical. Therefore, it is represented by an ideal current source in parallel with a capacitor [16]. In addition, all the mutual voltages are eliminated.…”

Section: B Conditions To Decouple Different Generator Ac Portsmentioning

confidence: 99%

“…In addition, (ω pu ) 3 I pu dc0 represents output power of a wind turbine at maximum power, which is proportional to the cube of the rotational speed in a wind-turbine application [8]. Even though the generator operates at variable speed, the dc-bus voltage as calculated by ( 14) is maintained constant across the entire operating speed range by a grid-side converter [16]. The difference between the dc-bus voltage and the total passive-rectifier output is the active-rectifier dc-side voltage, which is speed dependent:…”

Section: Comparison Between the Integrated Generator-rectifier System And The Alternativesmentioning

confidence: 99%

“…This d-axis current is the same as the peak ac-side current when the unity power-factor currentcontrol strategy is implemented. The d-axis current is regulated by a controller such that the dc-bus current delivers a power that is proportional to the cube of the generator rotational speed [16]. Fig.…”

Section: Comparison Between the Integrated Generator-rectifier System And The Alternativesmentioning

confidence: 99%

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Winding Layout Considerations for an Integrated Generator–Rectifier System

Huynh

Samarakoon

Haran

et al. 2022

IEEE Trans. Power Electron.

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An integrated generator-rectifier system is a promising architecture to harvest energy in offshore wind turbines. The system processes the majority of the incoming power using reliable, efficient, and inexpensive passive diodes operating at generator line frequency. Elimination of capacitors at the diode rectifiers' output by appropriately phase shifting the voltages of a multiport generator further improves the reliability of the overall architecture. This paper creates a generalized framework to evaluate the interactions among the different generator ports, diode-bridge rectifiers, and the active rectifier that is used to control the power flow. The framework enables quantifying the effect of integration on the dc-bus power ripple and power imbalance among different generator ports. An exemplary winding layout is proposed that ensures theoretically zero interaction between the passive ports though all the ports are mounted on a magnetic structure. A 10 MW integrated generator-rectifier design and simulation proves the accuracy of the framework using coupled circuit-and-finite-element simulation. Finally, a laboratory prototype shows the realization of the winding layout. The proposed inductance-matrix based framework can be used to evaluate other winding layouts to estimate the effect of magnetic coupling on the system's performance.

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Section: A Generalized Circuit Representation Of the Integrated Generator-rectifier Systemmentioning

confidence: 99%

Section: B Conditions To Decouple Different Generator Ac Portsmentioning

confidence: 99%

Section: Comparison Between the Integrated Generator-rectifier System And The Alternativesmentioning

confidence: 99%

Section: Comparison Between the Integrated Generator-rectifier System And The Alternativesmentioning

confidence: 99%

See 2 more Smart Citations

Winding Layout Considerations for an Integrated Generator–Rectifier System

Huynh

Samarakoon

Haran

et al. 2022

IEEE Trans. Power Electron.

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“…Among new renewable energies developed in recent years, wind energy is considered as an efficient and free-pollution renewable resource. Recently, there is a fast-growing number of studies focusing on wind energy conversion system (WECS) [1]- [7]. For example, in paper [1], the sliding mode control was applied for tracking the Maximun Power Point of the Low-Power WECS and improving the performance of the system.…”

Section: Introductionmentioning

confidence: 99%

Robust MPPT Observer-Based Control System for Wind Energy Conversion System With Uncertainties and Disturbance

Ngo

et al. 2021

IEEE Access

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The problem of tracking the maximum power point for the wind energy conversion system (WECS) is taken into consideration in this paper. The WECSs in this article is simultaneously affected by the uncertainties and the arbitrary disturbance that cause the WECSs to be much more challenging to control. A new method to synthesize a polynomial disturbance observer for estimating the aerodynamic torque, wind speed, and electromagnetic torque without using sensors is proposed in this paper. Unlike the previous methods, in this work, both the uncertainties and the disturbance are estimated, then estimations of the uncertainties and disturbance are transmitted to the Linear Quadratic Regular (LQR) controller for eliminating the influences of the uncertainties and disturbance; and tracking the optimal power point of WECS. It should be noted that the uncertainties in this work are time-varying and both uncertainties and disturbance do not need to satisfy the bounded constraints. The wind speed and aerodynamic torque are arbitrary and unnecessary to fulfil the low-varying constraint or r th time derivative bound. On the basis of Lyapunov methodology and sum-of-square technique (SOS), the main theorems are derived to design the polynomial disturbance observer. Finally, the simulation results are provided to demonstrate the effectiveness and merit of the proposed method.

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