Implementation of Virtual Synchronous Generator Methodologies for Renewable Integration
General Material Designation
[Thesis]
First Statement of Responsibility
Md Ashraful Islam
Subsequent Statement of Responsibility
Biswas, Saroj
.PUBLICATION, DISTRIBUTION, ETC
Name of Publisher, Distributor, etc.
Temple University
Date of Publication, Distribution, etc.
2017
PHYSICAL DESCRIPTION
Specific Material Designation and Extent of Item
79
GENERAL NOTES
Text of Note
Committee members: Dong, Qing; Du, Liang
NOTES PERTAINING TO PUBLICATION, DISTRIBUTION, ETC.
Text of Note
Place of publication: United States, Ann Arbor; ISBN=978-0-355-58911-5
DISSERTATION (THESIS) NOTE
Dissertation or thesis details and type of degree
M.S.E.E.
Discipline of degree
Electrical Engineering
Body granting the degree
Temple University
Text preceding or following the note
2017
SUMMARY OR ABSTRACT
Text of Note
In conventional centralized power systems, power is generated mostly by large synchronous generators (SGs), where the frequency of the grid depends on the rotational frequency of the prime mover. If there are any sudden changes in the load, the rotor inertia property restrains the changes in frequency and keeps the system stable. During transient periods, rotor kinetic energy of the rotor is injected into the grid to balance power supply between generation and load. With the recent high penetration of renewable energy sources (RES), the power grid is undergoing structural changes with an increased inverter-based distributed generation. Since inverter based power sources do not have inertia as conventional synchronous machines (SM), high penetration of inverters may cause instability and sharp voltage fluctuations in the grid. If inverter based power sources could be configured as regular SM by introducing virtual inertia and damping property, many of the problems, such as frequency regulation, islanded operation, and parallel operation of inverter-based DGs will be resolved. This thesis investigates mathematical modeling and control of VSG's to emulate the inertia and damping property of SMs. Simulation results are presented on the modeling and closed-loop performance of VSGs for an island microgrid.