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Improved Renewable Energy Power Syst...

Kim, Rae-Young.

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Improved Renewable Energy Power System using a Generalized Control Structure for Two-Stage Power Converters.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Improved Renewable Energy Power System using a Generalized Control Structure for Two-Stage Power Converters./
作者:	Kim, Rae-Young.
面頁冊數:	228 p.
附註:	Source: Dissertation Abstracts International, Volume: 73-11(E), Section: B.
Contained By:	Dissertation Abstracts International73-11B(E).
標題:	Engineering, Electronics and Electrical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=DP19573

Improved Renewable Energy Power System using a Generalized Control Structure for Two-Stage Power Converters.
Kim, Rae-Young.

Improved Renewable Energy Power System using a Generalized Control Structure for Two-Stage Power Converters. - 228 p.

Source: Dissertation Abstracts International, Volume: 73-11(E), Section: B.

Thesis (Ph.D.)--Virginia Polytechnic Institute and State University, 2009.

The dissertation presents a generalized control structure for two-stage power converters operated in a renewable energy power system for smart grid and micro grid systems. The generalized control structure is based on the two-loop average-mode-control technique, and created by reconstructing the conventional control structure and feedback configuration. It is broadly used for both dc-dc and dc-ac power conversion based on the two-stage converter architecture, while offering several functionalities required for renewable energy power systems. The generalized control structure improves the performance and reliability of renewable energy power systems with multiple functionalities required for consistent and reliable distributed power sources in the applications of the smart grid and micro grid system.Subjects--Topical Terms:

626636
Engineering, Electronics and Electrical.

Improved Renewable Energy Power System using a Generalized Control Structure for Two-Stage Power Converters.
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100 1 $a Kim, Rae-Young. $3 2098745
245 1 0 $a Improved Renewable Energy Power System using a Generalized Control Structure for Two-Stage Power Converters.
300 $a 228 p.
500 $a Source: Dissertation Abstracts International, Volume: 73-11(E), Section: B.
500 $a Adviser: Jih-Sheng Lai.
502 $a Thesis (Ph.D.)--Virginia Polytechnic Institute and State University, 2009.
520 $a The dissertation presents a generalized control structure for two-stage power converters operated in a renewable energy power system for smart grid and micro grid systems. The generalized control structure is based on the two-loop average-mode-control technique, and created by reconstructing the conventional control structure and feedback configuration. It is broadly used for both dc-dc and dc-ac power conversion based on the two-stage converter architecture, while offering several functionalities required for renewable energy power systems. The generalized control structure improves the performance and reliability of renewable energy power systems with multiple functionalities required for consistent and reliable distributed power sources in the applications of the smart grid and micro grid system.
520 $a The dissertation also presents a new modeling approach based on a modification of the subsystem-integration approach. The approach provides continuous-time small-signal models for all of two-stage power converters in a unified way. As a result, a modeling procedure is significantly reduced by treating a two-stage power converter as a single-stage with current sinking or sourcing. The difficulty of linearization caused by time-varying state variables is avoided with the use of the quasi-steady state concept.
520 $a The generalized control structure and modeling approach are demonstrated using the two-stage dc-dc and dc-ac power conversion systems. A battery energy storage system with a thermoelectric source and a grid-connected power system with a photovoltaic source are examined. The large-signal averaged model and small-signal model are developed for the two demonstrated examples, respectively. Based on the modeling results, the control loops are designed by using frequency domain analysis. Various simulations and experimental tests are carried out to verify the compensator designs and to evaluate the generalized control structure performance.
520 $a From the simulation and experimental results, it is clearly seen that the generalized control structure improves the performance of a battery energy storage system due to the unified control concept. The unified control concept eliminates transient over-voltage or over-current, extra energy losses, power quality issues, and complicated decision processes for multiple-mode control. It is also seen that the generalized control structure improves the performance of a single-phase grid-connected system through increased voltage control loop bandwidth of the active ripple current reduction scheme. As a result of the increased loop bandwidth, the transient overshoot or undershoot of the dc-link voltage are significantly reduced during dynamic load changes.
590 $a School code: 0247.
650 4 $a Engineering, Electronics and Electrical. $3 626636
650 4 $a Alternative Energy. $3 1035473
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690 $a 0363
710 2 $a Virginia Polytechnic Institute and State University. $b Electrical Engineering. $3 2098744
773 0 $t Dissertation Abstracts International $g 73-11B(E).
790 $a 0247
791 $a Ph.D.
792 $a 2009
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=DP19573