BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Department of Electrical and Computer Engineering - ECPv6.17.0//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Department of Electrical and Computer Engineering
X-ORIGINAL-URL:https://engineering.jhu.edu/ece
X-WR-CALDESC:Events for Department of Electrical and Computer Engineering
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20190310T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20191103T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20200308T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20201101T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20210314T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20211107T060000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201105T150000
DTEND;TZID=America/New_York:20201105T150000
DTSTAMP:20210628T204300Z
CREATED:20210628T204300Z
LAST-MODIFIED:20210628T204300Z
UID:554230-1604588400-1604588400@engineering.jhu.edu
SUMMARY:Thesis Proposal: Yan Jiang
DESCRIPTION:Note: This is a virtual presentation. Here is the link for where the presentation will be taking place.Title: Leveraging Inverter-Based Frequency Control in Low-Inertia Power SystemsAbstract: The shift from conventional synchronous generation to renewable converter-interfaced sources has led to a noticeable degradation of power system frequency dynamics. Fortunately\, recent technology advancements in power electronics and electric storage facilitate the potential to enable higher renewable energy penetration by means of inverter-interfaced storage units. With proper control approaches\, fast inverter dynamics can ensure the rapid response of storage units to mitigate degradation. A straightforward choice is to emulate the damping effect and/or inertial response of synchronous generators through droop control or virtual inertia\, yet they do not necessarily fully exploit the benefits of inverter-interfaced storage units. For instance\, droop control sacrifices steady-state effort share to improve dynamic performance\, while virtual inertia amplifies frequency measurement noise. This work thus seeks to challenge this naive choice of mimicking synchronous generator characteristics and instead advocate for a principled control design perspective. To achieve this goal\, we build our analysis upon quantifying power network dynamic performance using $mathcal L_2$ and $mathcal L_infty$ norms so as to perform a systematic study evaluating the effect of different control approaches on both frequency response metrics and storage economic metrics. The main contributions of this project will be as follows: (i) We will propose a novel dynamic droop control approach\, for grid following inverters\, that can be tuned to achieve low noise sensitivity\, fast synchronization\, and Nadir elimination\, without affecting the steady-state performance; (ii) We will propose a new frequency shaping control approach that allows to trade-off between the rate of change of frequency (RoCoF) and storage conrol effort; (iii) We will further extend the proposed solutions to operate in a grid-forming setting that is suitable for a non-stiff power grid where the amplitude and frequency of grid voltage is not well-regulated.Committee MembersEnrique Mallada (Department of Electrical & Computer Engineering)Pablo A. Iglesias (Department of Electrical & Computer Engineering)Dennice F. Gayme (Department of Mechanical Engineering)
URL:https://engineering.jhu.edu/ece/event/thesis-proposal-yan-jiang/
END:VEVENT
END:VCALENDAR