Control of a Stand-Alone Wound Rotor Synchronous Generator: Two Sliding Mode Approaches via Regulation of the d-Voltage Component

Dòria‐Cerezo, Arnau; Utkin, Vadim I.; Munoz-Aguilar, R.S.; Fossas, Enric

doi:10.1109/tcst.2011.2142310

Cited by 19 publications

(15 citation statements)

References 19 publications

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“…WRSG-based standalone WECS has been mentioned in [38] as a promising alternative for serving remote load demands. Different control schemes for stator voltage regulation in standalone WRSG are described in [39]. Unlike WRSG, PMSG is a brushless self-excited synchronous machine.…”

Section: Conventional and Potential Generator Types Used In Wecsmentioning

confidence: 99%

A small-scale standalone wind energy conversion system featuring SCIG, CSI and a novel storage integration scheme

Alnasir

Kazerani

2016

Renewable Energy

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Small-scale standalone wind turbines provide a very attractive renewable energy source for off-grid remote communities. Taking advantage of variable-speed turbine technology, which requires a partial-or full-scale power converter, and through integrating an energy storage system, smooth and fast power flow control, maximum power point tracking, and a highquality power is ensured.Due to high reliability and efficiency, permanent magnet synchronous generator seems to be the dominating generator type in gearless wind turbines, employed for off-grid applications.However, wind turbines using geared squirrel-cage induction generator (SCIG) are still widely accepted due to their robustness, simplicity, light weight and low cost. Permanent magnet induction generator, a relatively new induction-based machine, has recently been recognized in the wind energy market as an alternative for permanent magnet synchronous generator. A thorough comparative study, among these three generator types, is conducted in this research in order to enable selection of the most appropriate generator for off-grid wind energy conversion system (WECS), subject to a set of given conditions. The system based on geared SCIG has been shown to be the most appropriate scheme for a small-scale standalone WECS, supplying a remote area.Different topologies of power electronic converters, employed in WECSs, are overviewed.Among the converters considered, current source converter is identified to have a great potential for off-grid wind turbines.Three current-source inverter-based topologies, validated in the literature for on-grid WECS, are compared for off-grid WECS application. Feasibility study and performance evaluation are conducted through analysis and simulation. Among all, the topology composed of three-phase diode bridge rectifier, DC/DC buck converter, and pulse-width-modulated current-source inverter (PWM-CSI) is identified as a simple and low-cost configuration, offering satisfactory performance for a low-power off-grid WECS.A small-scale standalone wind energy conversion system featuring SCIG, CSI and a novel energy storage integration scheme is proposed and a systematic approach for the dc-link inductor design is presented. iv In developing the overall dynamic model of the proposed wind turbine system, detailed models of the system components are derived. A reduced-order generic load model, that is suitable for both balanced and unbalanced load conditions, is developed and combined with the system components in order to enable steady-state and transient simulations of the overall system. A linear small-signal model of the system is developed around three operating points to investigate stability, controllability, and observability of the system. The eigenvalue analysis of the small-signal model shows that the open-loop system is locally stable around operating points 1 and 3, but not 2. Gramian matrices of the linearized system show that the system is completely controllable at the three operating points and completely observable at...

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Section: Conventional and Potential Generator Types Used In Wecsmentioning

confidence: 99%

A small-scale standalone wind energy conversion system featuring SCIG, CSI and a novel storage integration scheme

Alnasir

Kazerani

2016

Renewable Energy

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“…linear quadratic regulators [13], sliding mode controllers [14], a mixture of I and PI controllers which are transformed in stator flux coordinates [15], backstepping nonlinear control [16] or model predictive control [17]. However, the aforementioned methods suffer from two shortcomings.…”

Section: Imentioning

confidence: 99%

“…Regarding EESMs, this is of major concern as the inductance of the rotor winding is often much greater than the stator inductance [13], [14]. To achieve a change of flux in the direct rotor axis, a much greater u dt value has to be applied to the rotor as opposed to the stator, which dramatically decreases dynamic performance.…”

Section: Imentioning

confidence: 99%

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Dynamic control of generalized electrically excited synchronous machines using predictive flux control

Winzer

Richter

Doppelbauer

2016

IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society

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“…In this case, the controller results in a complex function which depends on both the machine and load parameters and requires the measurement of the whole state. A different approach, taking into account the load model, is presented in [25] and [26]. The result are simple and robust control algorithms but only valids for the resistive case.…”

Section: Introductionmentioning

confidence: 99%

Extended SMC for a stand-alone wound rotor synchronous generator

Munoz-Aguilar

Dòria‐Cerezo

Fossas

2017

International Journal of Electrical Power & Energy Systems

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In this paper, a sliding mode controller for the stator voltage amplitude of a stand-alone wound rotor synchronous generator is presented. The standard dq-model of the electrical machine connected to an isolated inductive load is obtained. Then, the control law is designed using sliding mode techniques. The controller introduces a dynamic extension so that the stator voltage amplitude has relative degree one. As a result, a fast controller, robust to both machine and load parameters variations, is obtained. The control algorithm, that does not requires the knowledge of the parameters, is implemented and validated experimentally.

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Control of a Stand-Alone Wound Rotor Synchronous Generator: Two Sliding Mode Approaches via Regulation of the d-Voltage Component

Cited by 19 publications

References 19 publications

A small-scale standalone wind energy conversion system featuring SCIG, CSI and a novel storage integration scheme

A small-scale standalone wind energy conversion system featuring SCIG, CSI and a novel storage integration scheme

Dynamic control of generalized electrically excited synchronous machines using predictive flux control

Extended SMC for a stand-alone wound rotor synchronous generator

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