Yan, Dong
(2018)
The Study of a Single-Phase Full-Wave Uncontrolled Rectifier with a Constant Power Load in a Power Grid.
Master's Thesis, University of Pittsburgh.
(Unpublished)
Abstract
The single-phase uncontrolled rectifier supplying a constant power load (CPL) is common in a power system, especially for digital devices such as telecommunication equipment. The characteristics of CPLs may de-stabilize the system and cause the output voltage collapse if the initial capacitor voltage is too low. Based on a mathematical model of the rectifier-CPL circuit, a method is proposed to estimate the minimum initial voltage. Also, some non-linear factors including the source impedance and the inertia of the CPL. When the rectifier operates in steady states, a high load power may cause the bifurcation phenomenon. Some analysis is made for the bifurcation and its negative effects on the power grid.
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Details
| Item Type: |
University of Pittsburgh ETD
|
| Status: |
Unpublished |
| Creators/Authors: |
|
| ETD Committee: |
|
| Date: |
11 June 2018 |
| Date Type: |
Publication |
| Defense Date: |
3 April 2018 |
| Approval Date: |
11 June 2018 |
| Submission Date: |
27 March 2018 |
| Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
| Number of Pages: |
32 |
| Institution: |
University of Pittsburgh |
| Schools and Programs: |
Swanson School of Engineering > Electrical and Computer Engineering |
| Degree: |
MS - Master of Science |
| Thesis Type: |
Master's Thesis |
| Refereed: |
Yes |
| Uncontrolled Keywords: |
Constant power load, Rectifier, Convergence, Bifurcation. |
| Date Deposited: |
11 Jun 2018 18:05 |
| Last Modified: |
11 Jun 2018 18:05 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/33961 |
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