A New Out-of-Step Relay with Rate of Change of Apparent Resistance Augmentation

Taylor, Chris; Haner,; Hill,; Mittelstadt,; Cresap,

doi:10.1109/mper.1983.5519232

Cited by 18 publications

(17 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But the protection object of multi-generator out-of-step protection is more than one generator running in parallel; the protection decision-making need to use information of multi-generator and grid side, and operational export orders also need to be issued to each one. So a protection system need to be built with information integration and interactive functions [9]. Figure 2 shows an implementation plan based on information sharing.…”

Section: The Scheme Of Implementationmentioning

confidence: 99%

Research of Large Multi-generator Out-of-Step Protection Considering the Safety of Both Source and Grid

Li¹,

Wang²,

Fu³

et al. 2018

dteees

View full text Add to dashboard Cite

Abstract. When the system occurs multiple generators out-of-step, we need to put forward a program of large multi-generator out-of-step protection considering the safety of both source and grid. It can avoid the impact of simultaneous tripping of multiple generators on the power grid and play maximally the ability of withstanding the asynchronous oscillation of the generator. According to the area criterion, we could calculate the minimum number of cutting generators in the case of line failure. On this base, the scheme was realized by constructing communication network and special multi-generator out-of-step protection device. It is shows that the number of minimum machines is cut in the case of line failure by simulation, the system can resume synchronization.

show abstract

Section: The Scheme Of Implementationmentioning

confidence: 99%

Research of Large Multi-generator Out-of-Step Protection Considering the Safety of Both Source and Grid

Li¹,

Wang²,

Fu³

et al. 2018

dteees

View full text Add to dashboard Cite

show abstract

“…The principle behind the scheme is identical to that of an R-Rdot out-of-step relay [53] and it is based on the fact that the apparent resistance seen by a relay decreases as the angle across the intertie increases. Faults also exhibit the same characteristic of small apparent resistance.…”

Section: Data Mining and Protection Systemsmentioning

confidence: 99%

Methodology for a Security/Dependability Adaptive Protection Scheme Based on Data Mining

Bernabeu

Thorp

Centeno

2012

IEEE Trans. Power Delivery

View full text Add to dashboard Cite

The power industry is currently in the process of re-inventing itself. The unbundling of the traditional monopolistic structure that gave birth to a deregulated electricity market, the mass tendency towards a greener use of energy, the new emphasis on distributed generation and alternative renewable resources, and new emerging technologies have revolutionized the century old industry.Recent blackouts offer testimonies of the crucial role played by protection relays in a reliable power system. It is argued that embracing the paradigm shift of adaptive protection is a fundamental step towards a reliable power grid. The adaptive philosophy of protection systems acknowledges that relays may change their characteristics in order to tailor their operation to prevailing system conditions. The purpose of this dissertation is to present methodology to implement a security/dependability adaptive protection scheme. It is argued that the likelihood of hidden failures and potential cascading events can be significantly reduced by adjusting the security/dependability balance of protection systems to better suit prevailing system conditions.

show abstract

“…Usually, the complex impedance measured at the machine terminals is compared with a proper characteristic on the complex impedance plane, to detect the asynchronous operation (Elmore, 1994). The other methods used for identification of out-ofstep operations are based on the rate of change of apparent resistance augmentation (Taylor, 1983), the equal area criterion (Centeno, 1997), the observations of phase differences between substations (Ohura, 1990) or on the applications of neural networks (Rebizant, 2001). Since the mostly used methods are not secure enough, it is suitable to search for new solutions.…”

Section: Introductionmentioning

confidence: 99%