Reactive power compensation control for stand-alone synchronous generator-based wind energy conversion system

Mohamed, Ahmed; Elshaer, Mohamed; Mohammed, Osama A.

doi:10.1109/iecon.2010.5675052

Cited by 10 publications

(6 citation statements)

References 9 publications

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“…SM-based systems may not be capable enough to supply all the reactive power demands of the total load but incorporating it with rest of the grid adds a significant amount of reactive power and power factor correction from the side of SM [1,2]. This paper gives an insight to how this SM system can be utilized without any expense from the main system.…”

Section: Introductionmentioning

confidence: 99%

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Solar Pv Fed Stand-Alone Excitation System of a Synchronous Machine for Reactive Power Generation

2024

IRJMETS

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This paper presents a model of a stand-alone solar energy conversion system based on synchronous machine working as a synchronous condenser in overexcited state. The proposed model consists of a Synchronous Condenser, a DC/DC boost converter whose output is fed to the field of the SC. The boost converter is supplied by the modelled solar panel and a day time variable irradiance is fed to the panel during the simulation time.The model also has one alternate source of rechargeable batteries for the time when irradiance falls below a threshold value. also the excess power produced when there is ample irradiance is divided in two parts and one is fed to the boost converter while other is utilized to recharge the batteries. A simulation is done in MATLAB-SIMULINK and the obtained results show the utility of such modelling for supplying reactive power is feasible.

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Section: Introductionmentioning

confidence: 99%

“…Underground and overhead transmission lines etc. The technology used with the SM is Wind power excited synchronous generator system [1][2][3]. Fossil fuel or Hydro turbine coupled synchronous generator system are such that the RPC is done by energizing the SM from the line itself [2].…”

Section: Introductionmentioning

confidence: 99%

Solar Pv Fed Stand-Alone Excitation System of a Synchronous Machine for Reactive Power Generation

2024

IRJMETS

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“…However there is possible another topology in which the wound rotor synchronous generator (WRSG) and the power electronic converter (PEC) are connected parallel. In gird connected mode the WRSG operation is controlled in range of the active power by driving torque and the reactive power by excitation current [1,2,5]. In island operation of WRSG the driving torque is only used to keep frequency and the excitation current is used to keep reference voltage.…”

Section: Introductionmentioning

confidence: 99%

Synchrogenverter — Hybrid generation system

Koczara

Szulawski

2015

2015 IEEE 5th International Conference on Power Engineering, Energy and Electrical Drives (POWERENG)

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The paper describes new topology of a generation system that consists of wound rotor synchronous generator and parallel connected power electronic converter. The wound rotor synchronous generator operates as AC voltage source whereas the power electronic converter as fully controllable current source. The converter with embedded energy storage delivers active and reactive power. The first main role of the converter is to deliver reactive power, what results in zero reactive power demanded from the synchronous generator. Thus the synchronous generator moves from cos = 0.8 to cos = 1. So if the generator keeps its rated current and unity power factor than its active power rises about 25%. Moreover the operation with cos = 1 results in significant reduction of its excitation current. Additionally the ability of quick production of the active and reactive power, by the parallel connected converter, keeps voltage and frequency stability in transients and so it permits to accept step load. Such a generation system that consists of the wound rotor synchronous generator, the parallel power electronic converter and common control of power flow is called "Synchrogenverter". Paper presents theory and computer simulation study related to high power Synchrogenverter operating off grid (autonomously).

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“…Synchronous generator is controlled in island operation by the excitation current to keep referenced output voltage, and by DE driving torque to keep reference speed and frequency. In the grid connected mode the excitation current is used to control reactive power [1,2,5] and driving torque is used to control active power. Control of mechanical torque by driving engine and excitation current of synchronous generator is very slow.…”

Section: Introductionmentioning

confidence: 99%

Synchrogenverter - Hybrid generation system

Koczara

Szulawski

2015

2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)

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In this paper the concept of integration of synchronous generator and power electronics converter is motivated and developed, wherein wound rotor synchronous generator and power electronic converter are connected parallel. According the integration concept the wound rotor synchronous generator is source of active power whereas the power electronic converter is source of reactive power. Thus the synchronous generator power factor moves from cosφ = 0.8 to cosφ = 1 and produces 25% more of active power keeping the synchronous generator rated current. Moreover volt-ampere power of the generation system rises 25%. If power converter is equipped in energy storage then it may deliver active and reactive power what, in transient states keeps stability of generated voltage and frequency. Such a generation system that contains wound rotor synchronous generator and integrated power electronic converter is called Synchrogenverter. A control concept of the integrated generation system is developed. Computer simulation study presents performance of the new arrangement in transient and steady state.

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Reactive power compensation control for stand-alone synchronous generator-based wind energy conversion system

Cited by 10 publications

References 9 publications

Solar Pv Fed Stand-Alone Excitation System of a Synchronous Machine for Reactive Power Generation

Solar Pv Fed Stand-Alone Excitation System of a Synchronous Machine for Reactive Power Generation

Synchrogenverter — Hybrid generation system

Synchrogenverter - Hybrid generation system

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Reactive power compensation control for stand-alone synchronous generator-based wind energy conversion system

Cited by 10 publications

References 9 publications

Solar Pv Fed Stand-Alone Excitation System of a Synchronous Machine for Reactive Power Generation

Solar Pv Fed Stand-Alone Excitation System of a Synchronous Machine for Reactive Power Generation

Synchrogenverter &#x2014; Hybrid generation system

Synchrogenverter - Hybrid generation system

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Product

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Synchrogenverter — Hybrid generation system