POWER SYSTEM
Sai Info solution provide the Project Development & Training.We Develop
Project for BE/ME/PHD. An electric power system is
a network of electrical components deployed to supply, transfer, and use
electric power. An example of an electric power system is the grid that provides power to an
extended area. An electrical grid power system can be broadly divided into the generators that supply the power, the transmission
system that carries the power
from the generating centers to the load centers, and the distribution
system that feeds the power to
nearby homes and industries. Smaller power systems are also found in industry,
hospitals, commercial buildings and homes. The majority of these systems rely
upon three-phase
AC power—the standard for large-scale
power transmission and distribution across the modern world. Specialized power
systems that do not always rely upon three-phase AC power are found in
aircraft, eletric rail systems,
COMPONENTS OF POWER SYSTEM
Supplies:
All power systems have one or more sources of power. For some power systems, the source of power is external to the system but for others it is part of the system itself—it is these internal power sources that are discussed in the remainder of this section. Direct current power can be supplied by batteries, fuel cells or photovoltaic cells. Alternating current power is typically supplied by a rotor that spins in a magnetic field in a device known as a turbo generator. There have been a wide range of techniques used to spin a turbine's rotor, from steam heated using fossil fuel(including coal, gas and oil) or nuclear energy, falling water (hydroelectric power) and wind (wind power).
Loads:
Power systems deliver energy to loads that perform a function. These loads range from household appliances to industrial machinery. Most loads expect a certain voltage and, for alternating current devices, a certain frequency and number of phases. The appliances found in your home, for example, will typically be single-phase operating at 50 or 60 Hz with a voltage between 110 and 260 volts (depending on national standards). An exception exists for centralized air conditioning systems as these are now typically three-phase because this allows them to operate more efficiently. All devices in your house will also have a wattage, this specifies the amount of power the device consumes. At any one time, the net amount of power consumed by the loads on a power system must equal the net amount of power produced by the supplies less the power lost in transmission
Conductors:
Conductors carry power from the generators to the load. In a grid, conductors may be classified as belonging to the transmission system, which carries large amounts of power at high voltages (typically more than 69 kV) from the generating centres to the load centres, or the distribution system, which feeds smaller amounts of power at lower voltages (typically less than 69 kV) from the load centres to nearby homes and industry.
ABSTRACT
the design, implementation, and experimental validation of a method for fault prognosis for power electronics systems using an adaptive parameter identification approach. The adaptive parameter identifier uses a generalized gradient descent algorithm to compute real-time estimates of system parameters (e.g. capacitance, inductance, parasitic resistance) in arbitrary switching power electronics systems. These estimates can be used to monitor the overall health of a power electronics system, and predict when faults are more likely to occur. Moreover, the estimates can be used to tune control loops that rely on the system parameter values. The parameter identification algorithm is general in that it can be applied to a broad class of systems based on switching power converters. We present a real-time experimental validation of the proposed fault prognosis method on a 3 kW solar photovoltaic interleaved boost dc-dc converter system for tracking changes in passive component values. The proposed fault prognosis method enables a flexible and scalable solution for condition monitoring and fault prediction in power electronics systems
INTRODUCTION
Many mission-critical power electronics systems, including renewable energy integration, data center power delivery, and motor drives applications, require high reliability and availability of service. In many of these scenarios, techniques for fault prognosis are commonly employed, that is, methods for actively monitoring the system condition and predicting when failures or faults will occur. A central technology that enables fault prognosis is parameter identification, or identify-ing the values of system parameters in a real-time and online manner. By tracking the values of important system parameters in real-time, operators can actively monitor the overall health of a system and anticipate when maintenance or repairs will be needed. Moreover, fault prognosis can be achieved by monitoring if estimated parameter values are above or below an accepted tolerance range. The failure modes and mechanisms for power electronics systems have been widely investigated, for instance in. Passive components, such as capacitors and inductors, are a key failure point. Table I provides an overview of the
REFERENCE ARTICLES
- A Distribution Level Wide Area Monitoring System for the Electric Power Grid รข?? FNET/GridEye
- Real-time Detection of Power System Disturbances Based on k-Nearest Neighbor Analysis
- Reliability of Power System with High Wind Penetration under Frequency Stability Constrain
- Decentralized Impedance Specifications for Small Signal Stability of DC Distributed Power Systems
If anyone is interested for doing Research in above subject for BTech/MTech/PHD Engineering project work
Kindly Contact Below
Contact Details:
Santosh Gore Sir
Ph:09096813348 / 8446081043 / 0253-6644344
Email: sai.info2009@gmail.com
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