نتایج جستجو برای: electric power system protection
تعداد نتایج: 2812363 فیلتر نتایج به سال:
This research studies the low carbon transition of the electric power sector in China using a multi-level perspective (MLP) of niches, socio-technical regime, and landscape, as well as literature on innovation systems. Three lines of thought on transition process are integrated in the paper to probe the possible transition pathways in China. A MLP analysis is presented to understand the current...
In this paper we have studied the electric power steering system for a front wheelsteered, rear-wheel driven four wheels vehicle. A controller has been designed for our model with the help of assist characteristics curves and PID action. We have carried out simulation on different types of vehicle paths which include circular and moose test path. We chose two different cases of steering and for...
A Firefly Algorithm (FA) based on Fuzzy PID controller is proposed in this paper to solve the Load Frequency Control (LFC) problem in a deregulated environment. In multi area electric power systems, if a large load is suddenly connected (or disconnected) to the system, or if a generating unit is suddenly disconnected by the protection equipment, there will be a long-term distortion in the power...
The main frequency is an important parameter of an electrical power system. The frequency can change over a small range due to generation-load mismatches. Some power system protection and control applications, e.g., frequency relay for load shedding, load-frequency controller, require accurate and fast estimation of the frequency. Most digital algorithms for measuring frequency have acceptable ...
System reliability indices deal with the adequacy of overall system supply and indicates behaviour response. The index express interruption statistics in terms customers which can be an individual, firm, or organization that purchases electric services at one location under rate classification, contract schedule. include: Average Interruption Frequency Index (SAIFI), Duration (SAIDI), Customer ...
Electric utilities are expanding communications infrastructure due to increased need for information. Due to performance, price, and technological advances, digital communication systems are frequently chosen as this multiple user data network. This two-part paper describes the application of digital communication in power system protection. Part 1 describes the digital communications architect...
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