Smart energy systems lab
Research Field
Dr.Manaz is an assistant professor at the National Sun Yat-sen University. He has expertise in inverter-dominated power system dynamic analysis, operational & planning studies, and reliability analysis. He leads a diverse group of graduate students at the Smart energy systems lab.
Current research areas include:
- Inverter-based black start.
- Mode transition capable robust grid forming inverter control
- Real-time inertia estimation.
- Novel inverter control and synchronization schemes.
- Distribution system state estimation.
- Distribution system energy and ancillary service markets
Active research projects
- PLL-free inverter synchronization.
- Design of robust grid forming inverters capable of seemless transition between grid connected and islanded operation
- ANN based active inertia estimation algorithm.
- Matrix completion and GNN based distribution system state estimation.
- Robust OPF algorithms and distributed peer-to-peer markets
Publications
Journal
- Y.-C. Kuo, T.-W. Wang, M. M. Mohammed Ansar, and C.-N. Lu, “Building 100 % inverter-based distributed restart zone to assist system restoration,” Renewable and Sustainable Energy Reviews, vol. 206, p. 114872, Dec. 2024, doi: 10.1016/j.rser.2024.114872.
- A. Herath, M. A. Mohammed Manaz, K. M. Liyanage, T. Masuta, C.-N. Lu, and K. Nishio, “Frequency Excursion Likelihood Constrained Resource Scheduling for Large-Scale Renewable Energy Integration,” IEEE Access, vol. 10, pp. 90563–90575, 2022, doi: 10.1109/ACCESS.2022.3201536.
- M. M. Mohammed Ansar and C. Lu, “Design of Resonance Damper for Wind Energy Conversion System Providing Frequency Support Service to Low Inertia Power Systems,” IEEE Trans. Power Syst., pp. 1–1, 2020, doi: 10.1109/TPWRS.2020.2995868.
- M. A. Mohammed Manaz and C.-N. Lu, “Adaptive Defense Plan Against Anticipated Islanding of Microgrid,” IEEE Trans. Smart Grid, vol. 10, no. 3, pp. 3071–3080, May 2019, doi: 10.1109/TSG.2018.2817500.
Book
- Power Distribution System State Estimation. IET Digital Library, 2022. doi: 10.1049/PBPO183E.
Conference
- M. M. M. Mohammed Ansar, “An Exact Self-synchronized Realization of Park Transformation Equations for PLL-free Inverter Control,” in Accpted for PES GM-2023, Florida: IEEE, Jul. 2023.
- J.-C. Hu, Z.-C. Chen, M. A. Mohammed Manaz, and C.-N. Lu, “Applicability of matrix completion method for distribution system state estimation,” in 2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), Jun. 2022, pp. 768–773. doi: 10.1109/SPEEDAM53979.2022.9841962.
- M. A. M. Manaz and C.-N. Lu, “Calculation of Dynamic Frequency Stability Margin in Islanded Microgrids,” in 2018 IEEE Region 10 Humanitarian Technology Conference (R10-HTC), Malambe, Sri Lanka: IEEE, Dec. 2018, pp. 1–5. doi: 10.1109/R10-HTC.2018.8629831.
- M. A. M. Manaz and C.-N. Lu, “Optimal Switched Mode Control to Synthesize Dynamic Frequency Response from Virtual Synchronous Machine in Islanded Microgrid Operation,” in IFAC-PapersOnLine, 2018, pp. 610–615. doi: 10.1016/j.ifacol.2018.11.771.
- M. A. M. Manaz and C.-N. Lu, “Adaptive generation control for islanded AC microgrid frequency regulation,” in 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia), Kaohsiung, Taiwan: IEEE, Jun. 2017, pp. 2088–2093. doi: 10.1109/IFEEC.2017.7992373.
- M. A. M. Manaz, J. López, C.-H. Lin, C.-J. Liao, G.-C. Pu, and C.-N. Lu, “Characteristic Observation and Assessment of Chang-Kung Wind Farm,” presented at the The 36th Symposium on Electrical Power Engineering, Kaohsiung, Taiwan, 2015, p. 5.
- M. A. M. Manaz, K. M. Liyanage, and J. B. Ekanayake, “Enabling the participation of domestic consumer based VPPs in DR programs using near real time control over LTE networks,” in 2014 9th International Conference on Industrial and Information Systems (ICIIS), Dec. 2014, pp. 1–6. doi: 10.1109/ICIINFS.2014.7036650.
- M. A. M. Manaz, K. M. Liyanage, and J. B. Ekanayake, “Enabling the participation of domestic consumer based VPPs in DR programs using near real time control over LTE networks,” in 2014 9th International Conference on Industrial and Information Systems (ICIIS), Gwalior, India: IEEE, Dec. 2014, pp. 1–6. doi: 10.1109/ICIINFS.2014.7036650.
- M. A. Mohammed Manaz and K. M. Liyanage, “Delay analysis of small IP packets in GPRS RLC layer,” in 2013 IEEE 8th International Conference on Industrial and Information Systems, Dec. 2013, pp. 489–494. doi: 10.1109/ICIInfS.2013.6732033.
- M. A. M. Manaz, D. B. W. Abeywardana, M. G. C. P. Mediwaththe, K. M. Liyanage, and A. Yokoyama, “Active and reactive power balancing of Ubiquitous power networks considering voltage constraints,” in 2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS), Aug. 2012, pp. 1–6. doi: 10.1109/ICIInfS.2012.6304839.
- D. B. W. Abeywardana, M. A. M. Manaz, M. G. C. P. Mediwaththe, and K. M. Liyanage, “Improved shared transformer cell balancing of Li-ion batteries,” in 2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS), Aug. 2012, pp. 1–6. doi: 10.1109/ICIInfS.2012.6304835.
- K. M. Liyanage, M. A. M. Manaz, A. Yokoyama, Y. Ota, H. Taniguchi, and T. Nakajima, “Impact of communication over a TCP/IP network on the performance of a coordinated control scheme to reduce power fluctuation due to distributed renewable energy generation,” in 2011 6th International Conference on Industrial and Information Systems, Aug. 2011, pp. 198–203. doi: 10.1109/ICIINFS.2011.6038066.
Scholarships
- NSYSU Top Ph.D. scholarship (2015)
Grants
- NSTC research grant
- ITRI collaborative research on SiC MOSFET
- China steel company research on inverter-based microgrids
Guest speaker
- The 10th International Conference on New Energy and Future Energy Systems (NEFES 2025) - July 2025, Matsue, Japan
- GExNSYSU Energy transition workshop – April 2023
- Workshop on Power System Flexibility and Resilience – April 2019
- ICIIS Special session on Smart grid – December 2017
Ph.D. in Electrical Engineering (2019) - National Sun Yat-sen University, Taiwan (Supervisor: Prof. Chan Nan-Lu)
M.Phil. in Electrical and Electronics Engineering (2014) - University of Peradeniya, Sri Lanka (Supervisor: Prof. K.M. Liyanage)
B.Sc. in Electrical and Electronics Engineering (2010) - University of Peradeniya, Sri Lanka
1 Vacancy
Job Description
Develop a load and generation forecast based inertia prediction tool to assist power system operators. Develop a frequency response prediction tool to estimate frequency nadir and rate of change of frequency following credible contingencies. Evaluate the potential methods to optimize dispatch using grid support service from inverter-based resources
Preferred Intern Education Level
Master's and Ph.D students are welcome to apply.
Skill sets or Qualities
Dynamic simulation using DigSILENT PowerFactory or PSSE
Data processing and AI applications
Optimization: Unit commitment/ Economic dispatch
Matlab/Python programming
Internship-related fee required by the school/institution
Interns who conduct their internship on campus must apply as visiting students at least 1 month before their arrival. They are required to pay the fees listed on this page
<https://oia.nsysu.edu.tw/p/412-1308-20683.php?Lang=en>
and complete registration/leaving procedures. Please note that NSYSU does not provide on-campus housing for visiting students. Interns will have to look for off-campus housing by themselves. Off-campus housing resources can be found on this page
<https://oia.nsysu.edu.tw/p/412-1308-20683.php?Lang=en>