NDLI: Nested backward/forward sweep algorithm for power flow analysis of droop regulated islanded microgrids

Content Provider	IET Digital Library
Author	Kumar, Abhishek Jha, Bablesh Kumar Dheer, Dharmendra Kumar Singh, Devender Misra, Rakesh Kumar
Abstract	In this study, nested backward/forward sweep (NBFS) algorithm, is proposed to solve the load flow problem of islanded microgrids. The proposed algorithm is designed in such a way that the voltage magnitude of the angle reference bus and the system frequency become additional variables in the power flow analysis. In the absence of the slack bus, new loops and equations are introduced in the proposed backward/forward sweep (BFS) method to fulfil the requirement of droop characteristics in the power flow analysis. In each loop of the proposed algorithm, modified equations of BFS are employed to update the voltages of every bus except angle reference bus (slack bus). The voltage of angle reference bus and the system frequency are updated at the end of each loop operation. The proposed NBFS method is applied on several test systems including IEEE 22-bus, 38-bus, 69-bus, and 160-bus and the obtained results are compared with the result obtained from other BFS-based algorithms including direct BFS and modified BFS, Jacobian-based algorithms including Newton trust region (NTR) algorithm and modified Newton -Raphson (MNR) algorithm, and time-domain simulation in PSCAD/EMTDC. The proposed algorithm for droop-regulated AC microgrid exhibits faster convergence with better accuracy as compare to other algorithms.
Starting Page	3086
Ending Page	3095
Page Count	10
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 14, Jul (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0388
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-06-04
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Angle Reference Bus Control of Electric Power System Current Control Derivative-free Power Flow Approach DG Units Direct BFS-based Algorithm Distributed Generation Units Distributed Power Generation Distribution Network Droop Controlled AC Microgrid Droop Regulated Islanded Microgrid Droop-regulated AC Microgrid Electric Current Control Grid-connected Radial System IEEE 160-bus System IEEE 22-bus System IEEE 38-bus System IEEE 69-bus System Jacobian-based Algorithm Load Flow Control Mathematical Analysis MNR Algorithm Modified BFS Method Modified Newton–Raphson Algorithm NBFS Algorithm Nested Backward-forward Sweep Algorithm Newton Trust Region Algorithm NTR Algorithm Power Distribution Control Power Distribution Fault Power Flow Analysis Power Flow Solution Power Generation Control Power Grid Power System CAD Power System Control Power System Planning And Layout PSCAD-EMTDC Reactive Power-voltage Droop Law Time Domain Analysis Time-domain Simulation Voltage Control
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Current injection-based Newton–Raphson power-flow algorithm for droop-based islanded microgrids

Improvement of backward/forward sweep power flow method by using modified breadth-first search strategy

Robust quadratic-based BFS power flow method for multi-phase distribution systems

Triple droop control method for ac microgrids

Ensemble empirical mode decomposition-based differential protection scheme for islanded and grid-tied AC microgrid

Hybrid generators-based AC microgrid performance assessment in island mode

Centralised secondary control for islanded microgrids

Distributed control based power sharing strategy for an islanded AC microgrid

A Novel Optimal Control Method for Islanded Microgrids Based on Droop Control Using the ICA-GA Algorithm

Nested backward/forward sweep algorithm for power flow analysis of droop regulated islanded microgrids

Similar Documents

Current injection-based Newton–Raphson power-flow algorithm for droop-based islanded microgrids

Improvement of backward/forward sweep power flow method by using modified breadth-first search strategy

Robust quadratic-based BFS power flow method for multi-phase distribution systems

Triple droop control method for ac microgrids

Ensemble empirical mode decomposition-based differential protection scheme for islanded and grid-tied AC microgrid

Hybrid generators-based AC microgrid performance assessment in island mode

Centralised secondary control for islanded microgrids

Distributed control based power sharing strategy for an islanded AC microgrid

A Novel Optimal Control Method for Islanded Microgrids Based on Droop Control Using the ICA-GA Algorithm

Nested backward/forward sweep algorithm for power flow analysis of droop regulated islanded microgrids