Generator Protection Needs in a DG Environment
نویسندگان
چکیده
This paper will outline the features required for a multifunction protective relay or intelligent electrical device (IED) that meets the special requirements of the distributed generation environment.
منابع مشابه
Optimal Distributed Generation Planning in Radial Distribution Networks Considering Protection Coordination Limits
Distributed generation (DG) has been widely used in distribution network to reduce the energy losses, improve voltage profile and system reliability, etc. The location and capacity of DG units can influence on probability of protection mal-operation in distribution networks. In this paper, a novel model for DG planning is proposed to find the optimum DG location and sizing in radial distr...
متن کاملProviding a protection method to support distributed generation against transient voltage instability
The analysis of transient stability in electric power systems and the penetration coefficient of scattered productions play important roles in the regulation of protective equipment, so these parameters should be considered two main factors in the electrical protection of power networks. Overcurrent relays are used as one of the simplest and most effective solutions for power system protection....
متن کاملImpedance-Based Out-of-Step Protection of Generator in the Presence of STATCOM
This paper presents a novel impedance-based approach for out-of-step (OOS) protection of a synchronous generator. The most popular and commonly used approaches for detecting OOS conditions are based on the measurement of positive sequence impedance at relay location. However, FACTS devices change the measured impedance value and thus disrupt the performance of impedance-based relay function. In...
متن کاملDigital government security infrastructure design challenges - Computer
Information security pervades all such needs. In a DG environment, secure interoperation ensures confidentiality when individuals, private organizations, and government agencies access information. Electronic transactions and delivery systems must be secure to ensure protection against fraud and other vulnerabilities. The government’s archived information should be protected from tampering yet ...
متن کاملInverter based distributed generator islanding detection method using U/O voltage relay
Islanded operation of distributed generators is a problem that can take place when they are connected to a distribution system. In this paper an islanding detection method is presented for inverter based distributed generation (DG) using under/over voltage relay. The method is an adaptive one and is based on the change of DG active power reference (Pref) in inverter control interface. The activ...
متن کامل