Wide-area Protection and Control System With WAMS Based

Abstract

the paper introduces wide-area protection and emergency control system with the wide area measurement system. The methods for acquisition, transmission, and management of PMU data (Phasor Measurement Units), which have been applied in the engineering, are discussed at first. Then the feasibility application of WAMS data in power system is introduced on voltage stability, transient stability, local protection and SPSS (system PSS), Oscillatory and Angler stability. Some supported technologies are analyzed also.

The Overview of Smart Grid

“…Modern control theory, optimization theory and comprehensive application of artificial intelligence technology formed the advanced control technology. It is used in smart grid to analyze, diagnose and forecast system status, determine and take appropriate measures to eliminate, reduce and prevent power outages and power quality disturbance [11].…”

Advanced Topics in Measurements

“…As mentioned at the beginning of this chapter, a WAMS process includes three different interconnected sub-processes (Yan, 2006): data acquisition, data transmitting and data processing. Measurement systems and communication systems together with energy management systems perform these sub-processes, respectively.…”

Study on the Impact of Distributed Generation on Distribution Power Losses

“…However, for DGs which can't be modeled as PQ node, such as DGs with constant active power output and voltage control, and DGs with reactive power associated with output voltage, whether their impacts on power losses are similar to PQ model should be studied respectively. This paper considers the characteristics of different types of DGs, and models DG units as PQ, PQ(V) and PV node according to their constructive technology [3,4]. Then a revised back/forward power flow method is employed to calculate distribution power losses with different kinds of DGs.…”