The Discussion on the Key Issues Affecting the Accuracy and the Application of PMU Technology

Author

Bi, Tianshu ; Liu, Hao ; Kezunovic, Mladen

Author_Institution

North China Electr. Power Univ., Beijing, China

fYear

2011

fDate

4-7 Jan. 2011

Firstpage

1

Lastpage

6

Abstract

So far, over 1000 PMUs have been commissioned in Chinese power grids, which provide an excellent data platform for power system dynamic monitoring, analysis and control. However, working under dynamic conditions of power system, PMUs might experience the noise and interference. Besides, the dynamic behavior of PMUs might have impacts on the accuracy of system state measurements. Therefore, the dynamic behavior of PMUs is of great importance for the applications of PMU technology and the method for phasor trajectory estimator needs to be studied. In this paper, the implementation of PMUs and WAMS in China is reviewed. The problems in phasor quality assessment and phasor state trajectory estimator are discussed. A laboratory system to be used for evaluating the static and dynamic performance of PMUs is presented as well.

Keywords

power grids; power system control; power system measurement; China; Chinese power grids; WAMS; phasor measurement units; phasor quality assessment; phasor state trajectory estimator; phasor trajectory estimator; power system dynamic analysis; power system dynamic control; power system dynamic monitoring; system state measurements; Heuristic algorithms; Phasor measurement units; Power grids; Power system dynamics; Steady-state; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

System Sciences (HICSS), 2011 44th Hawaii International Conference on

Conference_Location

Kauai, HI

ISSN

1530-1605

Print_ISBN

978-1-4244-9618-1

Type

conf

DOI

10.1109/HICSS.2011.406

Filename

5718522