Saturated core reactor static compensator: computational versus experimental performance analysis

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Abstract. The focus of the paper presented herein is directed towards the investigative study of the operational performance of saturated reactors intended for voltage regulation, which consist of magnetic silicon steel cores and amorphous alloys. In order to reach the defined goal, two similar devices in terms of voltage operation and reactive power compensation are employed, both embodied with a twin-tripler or 12 pulse configuration. Both devices are modelled and implemented onto the ATP simulator to carry out comparative studies. Through the use of a classic distribution feeder, performance studies concerning sudden voltage variations are considered, which are focused on above all: evaluation of active losses, non-saturated and saturated reactive power, waveforms for inductive current and voltage with their harmonic spectra. The results obtained from the studies allows for a prompt correlation between the characteristics associated with the functionality of the device, highlighting the advantages offered by the use of one or other magnetic material.

Section: B Results For Case 2 -System With the Silicon Steel Saturatsupporting

confidence: 60%

Section: Introductionmentioning

confidence: 99%

A Comparative Performance Analysis between Saturated Core Voltage Regulators Using Silicon Steel and Amorphous Alloys

Chaves¹,

Oliveira²,

Barbosa³

2015

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“…This topology requires that the reactive power injected or absorbed by the equipment depend on the conditions imposed by the voltage busbar whereby the equipment is connected. More de the compensator as well as on the elements that constitute the device can be found in [3]- [10]. The capacitor banks comprising the compensator linear elements while the SCR is responsible for linear characteristic of it.…”

Section: Static Compensator Type Saturated Reactor: Basic Arrangementmentioning

confidence: 99%

“…The equipment in mind is the static reactive compensator which makes use of a combination of a saturated electromagnetic device in parallel to a fixed capacitor bank to provide a dynamic and quite rapid time response voltage control [2], [3]. This alternative here referred to as Saturated VAr Compensator (SVC) [4] - [10], has the following attractive properties: construction and operational simplicity, low maintenance, and competitive cost. Due to well-known past experience, it must be stressed the recognition of some drawbacks related to this technology.…”

Section: Introductionmentioning

confidence: 99%

Modelling and Validation of the Magnetizing Curve to Represent Saturated Core Reactor Using ATP Simulator

Barbosa¹,

Oliveira²,

Silva³

et al. 2012

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This paper is focused on the proposal and validation of a procedure to obtain the necessary data to model the magnetization curve of saturated core reactors as required for the voltage regulator device constituted by a parallel combination of an inductive saturated unit and a fixed capacitor bank. The methodology to model the nonlinear device is based on constructive parameters and information associated to the type of magnetic material utilized to build up the equipment. The results are expressed in terms of the relationship between the core flux and current values which are used to feed the ATPDraw time domain simulator. Computational studies are then carried out to find the reactive power absorbed by the reactor as a function of the applied voltage, and the theoretical results are compared to three prototypes having different ratings. The experimental results derived from 7kVAr-0.22kV, 600kVAr-13.8kV and 3MVAr-34.5kV products are then utilized to validate the saturation curve ATP representation through a comparative performance analysis of the absorbed reactive power with the voltage variation.

“…Due to this fact, this technology will produce harmonic currents to be injected in the supply busbar. This subject has been discussed in [3], [5], [6], [7], [8] and will not be further considered in this paper.…”

Section: Introductionmentioning

confidence: 99%

A case study of transient and dynamic performance of saturated core reactor Static Var Compensator

Barbosa¹,

Oliveira²,

Vasconcellos³

et al. 2009

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Abstract. This paper presents results related to transient, dynamic and steady state response of a Saturated Core Reactor Static VAr Compensator (SCR-SVC) at regulating a real radial 230 kV transmission line supplying a low density and highly distributed load in a developing area of Brazil. The studies are carried out using a time domain computational simulator in which a comprehensive model for a given twin-triple saturated reactor compensator model was implemented to cope with the receiving end load requirements for voltage regulation. Investigations are then performed to highlight the overall system and reactive compensator behavior at the occurrence of the reactor switch on conditions, final load relief and harmonic distortions.