Transient motor reacceleration study in an integrated petrochemical facility

Grewal, G.S.; Pocsai, S.; Hakim, M.M.

doi:10.1109/28.777207

Cited by 11 publications

(5 citation statements)

References 2 publications

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“…It is well known that the large penetration of IMs may produce an impact on voltage at distribution systems after a fault is cleared; this action is mainly related to the deceleration of motors during the fault and to their large demand for active and reactive power after the fault is cleared [17,18]. Voltage drops can lead to customer interruptions and equipment damage [1,2], and furthermore a non-adequate short-term voltage control has secondary effects such as activation of protective relays, electric load disruption, motor stalling etc.…”

Section: Impacts Of Ims On Short-term Voltage Recoverymentioning

confidence: 99%

Smart demand for improving short-term voltage control on distribution networks

García-Valle

Silva

et al. 2009

IET Gener. Transm. Distrib.

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Section: Impacts Of Ims On Short-term Voltage Recoverymentioning

confidence: 99%

Smart demand for improving short-term voltage control on distribution networks

García-Valle

Silva

et al. 2009

IET Gener. Transm. Distrib.

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“… Short circuit faults and subsequent voltage sags are 45% single-phase, 21% double-phase and 31% threephase. Extreme loading on a working induction motor can also cause a voltage sag in the network [7]. So, while the induction motor is affected by voltage sags, in certain circumstances, it could be a cause of voltage sag in the network, too.…”

Section: Introductionmentioning

confidence: 99%

Induction Motors Performance Study under Various Voltage Sags Using Simulation

Ojaghi¹,

Faiz²,

Shahrouzi³

et al. 2012

Journal of international Conference on Electrical Machines and

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-The main aim of this paper is to study effects of different voltage sags and their intensity on the behavior of induction motors using a simulation approach. For this purpose, necessary simulation was done in Matlab -Simulink first. Then, to ensure-reasonable accuracy of the simulation, some results of the simulation were compared with the corresponding results measured in the laboratory. Then effects of intensity of symmetric voltage sag (three phase) and its starting point on the behavior of small and large induction motors was studied using simulation and subsequently, the effects of asymmetric voltage sags (single phase and two phase) has also been studied and finally the conclusion of the study was presented.

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“…Another technique used keep service continuity, is motor reacceleration [14]. This technique consists in restarting some motors automatically, in a predetermined sequence and priority, after a power interruption or sag.…”

Section: System Improvementmentioning

confidence: 99%

“…the set remains in this condition for the longest period of time possible, depending on the energy balance, until UndeNOltage (E02 in t5) occurs. If the power returns (13) before undervoltage occurs, ASD detects voltage recovery when Ud voltage reaches the" power return Ud" ( 14). The motor is then reaccelerated following the ramp adjusted from current speed value to the value defined by the active speed reference.…”

Section: A Aaustable Speed Drivesmentioning

confidence: 99%

Maintaining the continuity of process operation after voltage sag or power interruption

Lopes

Jesus

VaIIe

IEEE Geoscience and Remote Sensing Letters

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In a refinery, all process units have a continuous operation. A wntinwus supply of electricity is important to maintain process unit operation. Voltage sag due to faults in the power supply system or motors reacceleration may result in costly shutdown if motors driving essential loads stop during these voltages disturbances resulting mainly from contactor drop or hipping of adjustable speed drive. This paper wnsiders two action lines. The first one approaches the sensitivity of critical electrical equipment to voltage sags while the second discusses systems exposed to sag and service continuity.Solutions implemented in motors control circuits and a set of parameters in adjustable speed drive are presented. 'The implementation of equipment solutions may cause other problems in the electrical system, like voltage sag due to motor reacceleration. A dynamic stability simulation to analyze motor reacceleration and the results of these simulations are presented.

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Transient motor reacceleration study in an integrated petrochemical facility

Cited by 11 publications

References 2 publications

Smart demand for improving short-term voltage control on distribution networks

Smart demand for improving short-term voltage control on distribution networks

Induction Motors Performance Study under Various Voltage Sags Using Simulation

Maintaining the continuity of process operation after voltage sag or power interruption

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