Tracking the maximum power transfer and loadability limit from sensitivities-based impedance matching

Tobón, Jorge Esteban; Ramı́rez, Juan M.; Correa, Rosa E.

doi:10.1016/j.epsr.2014.10.013

Cited by 11 publications

(5 citation statements)

References 23 publications

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“…In this condition, (15) and (21) are only a function of the load angle θ and the loadability value x, i.e. the term n can be processed with magnitudes of local measurements.…”

Section: Results In (22)mentioning

confidence: 99%

“…1. This reduced circuit allows the development of several practical applications, for diagnostic and operational monitoring of the power system, such as analysis and monitoring of voltage stability [21], estimation of short-circuit levels [22], load shedding to prevent voltage instability [23], among others.…”

Section: Thevenin Equivalent and Maximum Loadabilitymentioning

confidence: 99%

“…The voltage exponent n allows to generate a maximum VPSI S in function of load apparent power S S , load angle θ and factor k. In other words, it is possible to generate a maximum VPSI S in a predefined loadability value by calculating n from (19) and (21) considering S S equal to S S0 from (14).…”

Section: Vpsi S Definition and Vpsi S Maximisationmentioning

confidence: 99%

“…Consider a loadability value of 70%, it defines the value of S S0 according to (15), after that the voltage exponent n is determined according to (21). For this case, these equations give an S S0 equal to 0.3 and exponent n equal to 4.0464.…”

Section: Vpsi S For Load Changes and System Changesmentioning

confidence: 99%

See 3 more Smart Citations

Loadability analysis based on short‐circuit power

Fonseca¹,

Perez-Yauli²,

Salazar³

2017

IET Generation, Transmission & Distribution

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“…In this condition, (15) and (21) are only a function of the load angle θ and the loadability value x, i.e. the term n can be processed with magnitudes of local measurements.…”

Section: Results In (22)mentioning

confidence: 99%

Section: Thevenin Equivalent and Maximum Loadabilitymentioning

confidence: 99%

Section: Vpsi S Definition and Vpsi S Maximisationmentioning

confidence: 99%

Section: Vpsi S For Load Changes and System Changesmentioning

confidence: 99%

See 2 more Smart Citations

Loadability analysis based on short‐circuit power

Fonseca¹,

Perez-Yauli²,

Salazar³

2017

IET Generation, Transmission & Distribution

View full text Add to dashboard Cite

“…In [36], impedance matching (IM) equations are formulated as sensitivity-based equations, and practical issues about IM are addressed. Furthermore, [36] presented a direct relationship between IM and power injection sensitivities and proposed the use of a sensitivity impedance matching (SIM) for the detection of instability conditions, while [37] presented a framework for analyzing critical levels of the power system loadability from the point of view of reactive power generation.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the maximum loadability point of a power system after third zone of distance relay corrective actions

Moravej¹,

Bagheri²

2016

Turk J Elec Eng & Comp Sci

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Abstract:In this paper, the operation of a system and distance relay is improved during voltage instability by using an improved strategy. After detecting the voltage instability, the third zone is blocked. However, the system is prone to voltage collapse. Shunt capacitor compensation and a load shedding scheme can be used to protect the system from voltage collapse conditions. Load shedding plans can be performed based on a reduction in the power flow in the line where the relay is located. The reason is that the minimum eigenvalue of the load flow Jacobian (reduced and unreduced Jacobians) is increased and the static voltage stability is improved. After the shunt capacitor compensation and load shedding, the relay margin becomes positive, impedance comes out from the third zone, and the relay does not need to remain blocked. The maximum loadability point (MLP) is increased by performing a control action in the system. To accomplish this strategy, the 14-bus IEEE test system is used.

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