Liying Wang

Liying is a dynamic and innovative professional with over 15 years of experience in the power electronics and power system fields within the Australian energy industry. Her robust academic record complements her extensive industry experience. She has demonstrated proficiency in efficiently managing the end-to-end grid connection process, conducting comprehensive power system modelling and studies, and actively engaging in transmission and distribution network planning, transmission asset replacement, and rule change consultations., HVDC field, small signal stability analysis, PSS/POD auxiliary controller design, Principle Engineer – Generation Connections Planning, AusNet Services, Melbourne, 01/2023, Present, Assist in delivering planning and connection aspects of New England REZ (NSW) Pre EOI preparation., Assist in developing East Gippsland D-REZ road map., Develop and maintain collaborative working relationships with internal and external stakeholders to achieve successful outcomes for AusNet., Develop, validate, and maintain models for the AusNet 66kV Sub-transmission networks, variable renewable energy generators and related control systems utilizing steady state power flow, RMS time-domain (PSS/E), EMT-type (PSCAD) and harmonic analysis., Model and simulation of power system behaviour to understand the generator performance and control interactions using steady state, transient and EMT simulations and propose effective solutions based on the findings to enhance overall power system security., Technical assessment of NER Schedule 5.2 applications to the AusNet 66kV sub-transmission network, Coordination of plant commissioning and compliance testing activities for asynchronous generators and Smart Wires project, Technical sign-off the connection of new (or modifications to existing) plant connected to the AusNet 66kV Sub-transmission networks., Investigate safety, capacity, reliability, and quality of supply issues related to the connection of generation connected to AusNet Services’ network., Validation of generating plants and FACTS device models from compliance testing data., Provide ongoing technical support to Planning Team and policy team., Collaborate with university on research funding application (ARENA), Represent AusNet in technical working groups and response to technical rule change consultations., Provide coaching and training to junior and senior engineers, with an emphasis on modelling, design, and development of technical skills., Supervised junior staff members to carry out connection assessments in line with all regulatory and technical requirements., Provided team technical direction and connection assessment strategy to ensure compliance with the National Electricity Rules, Provided guidance to connection proponents on connection point options leading to agreement of proposed connection point., Negotiated with connection proponents and AEMO on acceptability of the proposed performance standards Granted approval of agreed performance standards (GPS and FIA), Managed commissioning testing and R2 model validation testing., Managed Non-Compliance issues with AEMO and generating plants owners to be line with the National Electricity Rules Chapter 4, Granted approval of the validated R2 models, Managed development of AusNet technical capabilities, Conducted assessment on the performance of the large-scale generators, including model acceptance test, model benchmarking, grid connection studies, runback scheme design, system strength assessment, full system impact assessment, and commissioning test., Conducted voltage coordination studies for managing several electrically close connected solar farms., Led the M-SSSC NICIPAP project for inter-connector power flow improvement., Developed and coordinated project proposals and estimates., Delivered presentation on CIGRE meeting NGN forum., Provided network modelling support to Transmission Planning Team for capital project justification., Developed an understanding of TRR and RIT-T submissions., Developed an understanding of NEM market modelling and challenges., Active participation in industry working groups and rule changes has allowed me to contribute significantly to shaping energy policy, making a meaningful impact in the ongoing energy transition., Power System Consultant, PTI/Siemens PTY LTD, Melbourne, 1/2019, 05/2019, Engage with internal and external stakeholders to drive business development for the Digital Grid unit in Australia, identifying market opportunities and leveraging technical solutions in coordination with other business segments and global headquarters., Manage the delivery of customer studies as a Project Manager, coordinating project timelines and resources to ensure successful outcomes for clients., Conduct Dynamic Model Acceptance Tests and benchmarking studies for solar inverter models using PSS/E and PSCAD, ensuring compliance with industry standards and best practices., Conduct GPS studies for grid-connected solar farms, analysing power system behaviour and proposing solutions to optimize performance and reliability., Proactively identify local market requirements and collaborate with other Business Units to develop tailored solutions and drive growth in the Australian market., Conducted DMAT and benchmarking studies for SMA solar inverters at Gidginbung solar farm, ensuring compliance with relevant grid standards and regulations., Performed DMAT and benchmarking studies for Siemens WSTECH solar inverters, ensuring efficient and safe integration with the power grid., Provided technical contributions to the grid aspects of the Gunnedah solar farm project, ensuring compliance with grid connection requirements and regulations., Technology Leader – Grid, ASEAN and ANZ, General Electric Renewable Energy, Melbourne, 10/2018, 01/2019, Lead negotiations with utilities and AEMO to ensure technical requirements are met in grid offers and connection offers., Define technical requirements for wind turbine generators (WTGs) and electrical designs., Conduct grid connection and compliance studies to evaluate the impact of WTGs on the grid., Interpret technical accuracy studies and investigations to analyse their findings., Prepare comprehensive reports throughout the grid connection process to ensure high quality deliverables., Manage strong relationships with customers both internally and externally to ensure customer satisfaction., Played a key role in negotiations with PL QLD/TG NSW/AEMO on behalf of AGL and Infigen Energy to progress grid Registration and GPS negotiation and compliance for multiple projects, including Coopers Gap/PL QLD, Bodangora/TG-NSW, and Crookwell2/TG-NSW., Conducted a comprehensive suite of power system studies and assessments, including Model Acceptance Test for GEWTG703 PSS/E & PSCAD models, reactive current injection assessment evaluated against NER S5.2.5.5, benchmarking between PSS/E and PSCAD, hold points overlay studies/R2 testing, results analysis and reporting., Prepared RUGs for Bodangora and Crookwell stage 2., Collaborated with Energy Consulting colleagues based in the USA and Germany on a daily basis., Specialist Engineer- Electrical Engineering and Grid, Siemens Gamesa Renewable Energy, Melbourne, 03/2017, 10/2018, Development of wind farm control systems specialized in weak AC grid connection. Wind farm modeling, Conducted primarily in PSS/e and PSCAD, but also DIgSILENT., Generator performance standard compliance studies for inverter-based generators (e.g., wind, solar and energy storage)., Wind farm grid performance, compliance analysis and simulation, Documentation of grid testing plans and results, Performing WF Grid tests, including testing of capacitors, taps, reactive capabilities, turbine, active power, frequency control & so on. Specialty is tuning models/converters pending on connection and network characteristics, especially weak grids where WGO solutions may be required., Co-ordinate with relevant stakeholders to perform grid tests., R2 tests, model performance benchmarking against field measurement data by using PSS/E, Ongoing post connection grid compliance support, Identification, approach, and technical support for negotiation with suppliers of components and local electrical and civil engineering contractors., Assist in engagement and management of external consultants to perform specialist tasks and complete work in a timely manner in accordance with project schedules., Led grid commissioning for Hornsdale wind farm stages 2 and 3, developing comprehensive test plans and conducting onsite commissioning, with documentation and analysis of test results and preparation of final compliance reports., Solved voltage control stability issues arising from shared PCC points among three stages of Hornsdale wind farms., Aided AEMO in testing Hornsdale Tesla 100MW grid battery storage system., Led the investigation of a blackout event at SnowtownII wind farm., Validated GPS studies for Bulgana wind farms and provided support to team during GPS review., Conducted risk assessment for Bulgana battery system., Conducted model acceptance and benchmarking tests for Siemens Gamesa PSS/E and PSCAD models., Collaborated closely with R&D team colleagues in Denmark and Spain., Development Engineer, Electrical Power Systems, Power Technology Engineered Solution, Melbourne, 11/2015, 02/2017, Lead and assist in consulting projects focused on grid battery energy storage systems applications, microgrids, and power networks., Design and implementation of distributed microgrid control systems using the simulation platform MATLAB., Conduct analysis of electrical power networks and systems to identify optimization opportunities and propose improvements., Collaborate with clients to understand their specific needs and provide tailored solutions to their energy challenges., Maintain up-to-date knowledge of industry trends and emerging technologies to ensure clients receive the most innovative and effective solutions., Communicate complex technical information to both technical and non-technical stakeholders, including presenting findings and recommendations to clients., Conducted feasibility studies, concept design, and network impact studies for Jemena's distribution network, VIC 2015, to implement collaborative Grid Battery Energy Storage Systems., Developed a micro grid coordinated scalable battery fleet management control tool and prepared a network impact studies report., Led the technical aspects of the Australian Energy Storage Knowledge Bank project, funded by ARENA, focusing on Grid Battery Energy Storage System, system integration & control basic & detail engineering and design, SA 2015., Proposed novel on-grid functionalities such as automatic charging/discharging control strategy (Top-up charge, arbitrage, and trickle charge) and apparent power peak lopping for energy storage in the distribution network., Led the technical aspects of the "Parallel Distributed Electrical Assets Control System" project, to develop intelligent scalable power management strategies for on-grid and off-grid Diesel/Solar/Energy Storage Hybrid System., Developed the tool to automate six transitions of GBSS including black start and start up on grid, shut down island and shut down on grid, smooth segregation, and re-integration. Collaboratively developed by Freestyle Technology and PowerTec, VIC 2015-2016., Designed and executed the Community Mini Grid trial, enabling 100% renewable energy to connect to the grid while allowing street and home level islanding using energy storage, VIC 2016, Intern as an Electrical Power Systems Engineer, DIgSILENT Pacific, Melbourne, 06/2015, 09/2015, Completed PowerFactory Fundamentals Training, Completed PowerFactory Power Quality Training, Completed PowerFactory Dynamic Training, Completed PowerFactory Protection Analysis Training

• Enhancement of the System Stability of DB-Controlled VSC Links Parallel Operated with a Weak Multi-Machine AC Power System, Wang, L., Ertugrul, N., Negnevitsky, M., Energies, 2022, 15, 2424, https://doi.org/10.3390/en15072424
• Evaluation of dead-beat current controllers for grid connected converters, Liying Wang, Ertugrul, N., Kolhe, M., Innovative Smart Grid Technologies - Asia (ISGT Asia), 2012, 10.1109/ISGT-Asia.2012.6303109
• Selection of PI compensator parameters for VSC-HVDC system using decoupled control strategy, Liying Wang, Ertugrul, N., Universities Power Engineering Conference (AUPEC), 2010
• Evaluation of Capacitor Commutated Converter HVDC for Qinghai-Xizhang Interconnection Project, Wen, Jun, Wang, Jun, Wang, Liying, Yin, Wei-yang, Liu, Bao-hong, AC and DC Power Transmission, 2010. ACDC. 9th IET International Conference on, 2010, 10.1049/cp.2010.1000

References available upon request.