Zhengru Ren

Jan. 2016 - Aug. 2019, Ph.D. in Marine Technology, Norwegian University of Science and Technology, Norway

Aug. 2013 - Jun. 2015, MSc. in Marine Technology, Norwegian University of Science and Technology, Norway

Sep. 2008 - Jun. 2012, BEng. in Ocean Engineering, Dalian University of Technology, China

Feb. 2022 - present, Assistant Professor, Tsinghua Shenzhen International Graduate School, China

Aug. 2019 - Aug.2021, Postdoctoral research fellow, Norwegian University of Science and Technology, Norway

Apr. 2019 - Aug.2019, Researcher, Norwegian University of Science and Technology, Norway

Reviewer of 13 international journals (Marine Structures, Ocean Engineering, IEEE Transactions on Neural Networks and Learning Systems, IEEE Transactions on Intelligent Transportation Systems, etc) and 5 conferences (OMAE, ISOPE, IOWTC, etc).

Co-supervision of PhD student at NTNU

·       Behfar Ataei, 2019.8--2022.6, Virtual prototyping of installation of offshore power systems.

Co-supervision of master students at NTNU

·       Sindre Sagsveen Slåttum, 2020.8--2021.6, Load and sea state estimation based on distributed IMUs.

·       Yuxuan Cai, 2020.8--2021.6, Data-driven condition monitoring of marine battery energy

·       storage systems.

·       Jens Nikolai Alfsen, 2019.8--2020.6, Dynamic optimal path-planning for autonomous harbor maneuvering.

·       Caroline Sophie Røhm Fleischer, 2019.8--2020.6, Optimal path-planning on a bio-inspired neural network landscape model for autonomous surface vessels.

·       Hongyu Zhou, 2019.8--2020.6, Autonomous guidance, stepwise path planning, and path-following control with anti-collision for autonomous marine robots.

·       Elias Gauslaa, 2019.8--2020.6, Navigation, guidance, and control for autonomous autodocking of ships.

·       Jakob Stensvik Jensen, 2019.8--2020.6, Dynamic optimal path-planning for autonomous harbor maneuvering.

·       Baiheng Wu, 2018.4--2019.1, Image processing and target tracking technology in the sea cucumber fishing application.

My research interests are within system identification, guidance, navigation, and control theory of marine surface vessels and onboard equipment; intelligent and digitalized marine operations and offshore wind energy; sea state estimation.

• National Natural Science Foundation of China (2022 – 2015 Distinguished Young Scholars of the National Natural Science Foundation of China (Overseas), host);

• Research Council of Norway (Norwegian Centre of Research-based Innovation SFI MOVE (Marine Operations in Virtual Environments), 2016-2019 Project 3: Innovative installation of wind power systems, participant; 2019-2021 Project 6: Onboard decision tool, participant)

• Research Council of Norway (Norwegian Centre of Excellence, NTNU AMOS (Centre for Autonomous Marine Operations and Systems), 2016-2019 Project 3: Risk management and maximized operability of ships and ocean structures, participant)

• Open Project of the State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University (2017 – 2020 Research and development of innovative offshore wind farm installation techniques, second applicant)

• Open Project of the State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology (2018 – 2020 The structural influence of passive damper to offshore wind turbine, second applicant)

1. Zhengru Ren, Amrit Shankar Verma, Ye Li* , Julie J.E. Teuwen, and Zhiyu Jiang. Offshore wind turbine operations and maintenance: A state-of-the-art review. Renewable & Sustainable Energy Reviews, 144:110886, 2021.

2. Zhengru Ren, Amrit Verma* , Behfar Ataei, Karl Henning Halse, and Hans Petter Hildre. Model-free anti-swing control of complex-shaped payload with offshore floating cranes and a large number of lift wires. Ocean Engineering, 228:108868, 2021.

3. Zhengru Ren* , Xu Han, Amrit Shankar Verma, Johann Alexander Dirdal, and Roger Skjetne. Sea state estimation based on vessel motion responses: improved smoothness and robustness using Bézier surface and L1 optimization. Marine Structures, 76:102904, 2021.

4. Zhengru Ren* , Roger Skjetne, Amrit Shankar Verma, Zhiyu Jiang, Zhen Gao, and Karl Henning Halse. Active heave compensation of floating wind turbine installation using a catamaran construction vessel. Marine Structures, 75:102868, 2021. ESI highly-cited paper

5. Zhengru Ren* , Bo Zhao, and Dong Trong Nguyen. Finite-time neural adaptive control of a class of nonlinear system: Proved by Bernoulli inequality. IEEE Access, 8:47768–47775, 2020.

6. Zhengru Ren, Roger Skjetne, Zhiyu Jiang* , and Zhen Gao. Active single-blade installation using tugger line tension control and optimal control allocation. International Journal of Offshore and Polar Engineering, 30(2):220–227, 2020.

7. Zhengru Ren* , Roger Skjetne, and Zhen Gao. A crane overload protection controller for blade lifting operation based on model predictive control. Energies, 12(1):50, 2019. ESI highly-cited paper

8. Zhengru Ren* , Roger Skjetne, Zhiyu Jiang, Zhen Gao, and Amrit Shankar Verma. Integrated GNSS/IMU hub motion estimator for offshore wind turbine blade installation. Mechanical Systems and Signal Processing, 123:222–243, 2019. ESI highly-cited paper

9. Roger Skjetne and Zhengru Ren* . A survey on modeling and control of thruster-assisted position mooring systems. Marine Structures, 74:102830, 2020.

10. Zhengru Ren, Zhiyu Jiang* , Roger Skjetne, and Zhen Gao. Active tugger line force control method for single blade installations. Wind Energy, 21:1344–1358, 2018.

11. Zhengru Ren, Zhiyu Jiang* , Roger Skjetne, and Zhen Gao. Development and application of a simulator for offshore wind turbine blades installation. Ocean Engineering, 166:380–395, 2018.

12. Jiafeng Xu, Zhengru Ren∗ , Yue Li, Roger Skjetne, and Karl Henning Halse. Dynamic simulation and control of an active roll reduction system using free-flooding tanks with vacuum pumps. Journal of Offshore Mechanics and Arctic Engineering, 140:061302, 2018.

13. Zhiyu Jiang, Zhen Gao, Zhengru Ren, Ye Li* , and Lei Duan. A parametric study on the blade mating process for monopile wind turbine installations under rough environmental conditions. Engineering Structures, 172:1042 – 1056, 2018. 

• 蒋致禹, 任政儒, 施伟, 宁德志. 一种适用于海上单桩式风机安装的主动式阻尼装置(Active tuned mass damper applied to offshore monopile wind turbine installation), 申请日: 2021.09.14, US11118646B2(US patent)

• 施伟，蒋致禹，任政儒，宁德志。一种新型浮式风能-波浪能联合发电系统(Floating wind-wave integrated power genreration system),2021.03.16, US10947952B2(US patent)

• 蒋致禹，任政儒，施伟，宁德志。一种适用于海上风机单叶片安装的轮毂对接装置(Hub mating mechanism applicable to sing blade installation of offshore wind turbines)，2020.11.17, US10837425B2(US patent)

• 任政儒, 蒋致禹, 施伟, 宁德志. 一种用于海上风机塔筒安装的减摇装置(Anti-swing device for offshore wind turbine tower installation), 2020.06.30, US010697435B2 (US patent)

2022 - 2015 Distinguished Young Scholars of the National Natural Science Foundation of China (Overseas)

2016 - 2018  PhD fellowship, SFI MOVE/NTNU AMOS, NTNU