Research on Detection and Control Strategy for UPQC without PLL in Coal Mine

Yan Wen Wang; Yan Hua Jiang

doi:10.4028/www.scientific.net/AMM.448-453.3942

Paper Titles

A New Method to Evaluate the Suitability of Ignitor Strength Used in the Tests of Dust Explosions
p.3916

Typical Techniques and Equipment for Coal Mine Water Hazards Prevention and Control
p.3923

Exploration of Coalbed Methane Exploitation and Coal Mine Gas Drainage
p.3928

Simulation and Analysis of the Neutral Resistance Grounding of 1140V Power System in Coal Mine
p.3936

Research on Detection and Control Strategy for UPQC without PLL in Coal Mine
p.3942

Research on the Scale Inhibition Performance of AA/SAS Binary Polymer
p.3949

Study of Optimization Method for Variable-Density Completion of Horizontal Well
p.3954

The Dual-Porosity Vertical-Well Model for Transient Pressure Analysis of Naturally Fractured Shale Gas Reservoirs
p.3958

Full Cost Analysis of Energy Transport Modes in Sao Francisco River Basin in Brazil - A Case Study
p.3963

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 448-453Research on Detection and Control Strategy for...

Research on Detection and Control Strategy for UPQC without PLL in Coal Mine

Abstract:

To improve the power quality of power grid in coal mine, a kind of detection and control method for unified power quality controller (UPQC) without phase locked loop (PLL) is put forward. It can get the positive-sequence component of unity fundamental voltage through Park transformation,and then obtains the positive-sequence active component of fundamental current after proper operation . The PLL or filtering of three-phase voltage and the synchronous coordinates transformation for current are cancelled. The control strategy of the system is studied and the effectiveness and validity of UPQC are verified by simulation results.