Virtual Synchronous Power Strategy for Multiple HVDC Interconnections of Multi-Area AGC Power Systems

Rakhshani, Elyas; Remon, Daniel; Cantarellas, Antoni M.; García, Jorge Martínez; Rodríguez, Pedro

doi:10.1109/tpwrs.2016.2592971

Cited by 133 publications

(111 citation statements)

References 34 publications

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“…Recently, the aforementioned approach has materialized in several implementations. For instance, the synchronous power controller (SPC) [24] that has exhibited good performance in both HVDC [25,26] and FACTS systems [27,28] under generic operating conditions.…”

Section: Facts Based On Virtually Synchronous Power Convertersmentioning

confidence: 99%

Power Quality Services Provided by Virtually Synchronous FACTS

et al. 2019

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The variable and unpredictable behavior of renewable energies impacts the performance of power systems negatively, threatening their stability and hindering their efficient operation. Flexible ac transmission systems (FACTS) devices are able to emulate the connection of parallel and series impedances in the transmission system, which improves the regulation of power systems with a high share of renewables, avoiding congestions, enhancing their response in front of contingencies and, in summary, increasing their utilization and reliability. Proper control of voltage and current under distorted and unbalanced transient grid conditions is one of the most critical issues in the control of FACTS devices to emulate such apparent impedances. This paper describes how the synchronous power controller (SPC) can be used to implement virtually synchronous FACTS. It presents the SPC functionalities, emphasizing in particular the importance of virtual admittance emulation by FACTS devices in order to control transient unbalanced currents during faults and attenuate harmonics. Finally, the results demonstrate the effectiveness of SPC-based FACTS devices in improving power quality of electrical networks. This is a result of their contribution to voltage balancing at point of connection during asymmetrical faults and the improvement of grid voltage quality by controlling harmonics flow.

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Section: Facts Based On Virtually Synchronous Power Convertersmentioning

confidence: 99%

Power Quality Services Provided by Virtually Synchronous FACTS

et al. 2019

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“…(4) In the SPC loop of the HVDC, the capacitors between the two converter stations in DC link can be modelled in the topology of the converter [7]. Since SPC does not posses infinite storage of power, so in case of bigger requirements more number of storage can be used alongside to fulfill the requirements.…”

Section: B Hvdc Links With Spc For Inertia Emulationmentioning

confidence: 99%

“…But the proposal as in [6] is highly prone to the external noises and may be a threat to system stability. Overcoming this problem with the use of synchronous power controller (SPC) in [5] and [7], to emulate inertia in the grid, authors have proposed extraction of power from the converter stations for load frequency control (LFC).…”

Section: Introductionmentioning

confidence: 99%

Frequency Control Using V2G and Synchronous Power Controller based HVDC Links in Presence of Wind and PV Units

Shrivastwa

Hably

Debbarma

et al. 2018

IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society

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The world is shifting towards Renewable Energy Sources (RES) to meet the increasing demand. With proportionally high penetration of RES, the inertia of the grid tends to fall due to the incapability of these sources to participate in control mechanism. Also, due to the indeterminacy in the generation pattern, they tend to feed small signal disturbances in the grid due to the imbalance of generation and demand, which affects the frequency stability. In this paper, the affect of inertia emulation (IE) in the grid is presented to mitigate the small signal disturbances caused due to the change in load or due to the penetration of the RES. This work has considered Electric Vehicles for the application of vehicle to grid (V2G) towards frequency control. A cooperative control method, with V2G and synchronous power controller (SPC) based HVDC links, has been proposed towards the control of the fluctuations and a considerable decrease in the deviations have been observed. Several case studies are conducted and the results are presented to proof the concept.

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“…In the case of the PFC proficiency, the VSG-based HVDC systems can be equipped with PFC [23] and automatic generation control [24] capabilities by adjusting their DC link voltage. For microgrids, an extended VSG (EVSG) was presented through combining the virtual inertia, virtual primary and secondary frequency controllers [25].…”

Section: Introductionmentioning

confidence: 99%