A5053993279- Power System Optimization and Stability
- Microgrid Control and Optimization
- Optimal Power Flow Distribution
- Power Systems Fault Detection
- Electric Power System Optimization
- HVDC Systems and Fault Protection
- Vibration and Dynamic Analysis
- Frequency Control in Power Systems
- Smart Grid Energy Management
- Smart Grid Security and Resilience
- Wind Turbine Control Systems
- Fluid Dynamics and Vibration Analysis
- Interconnection Networks and Systems
- Integrated Energy Systems Optimization
- Power Systems and Technologies
- Islanding Detection in Power Systems
- Distributed systems and fault tolerance
- Parallel Computing and Optimization Techniques
- Distributed and Parallel Computing Systems
Electric Power Research Institute
2019-2021
University of Manchester
2016-2017
Imperial College London
2017
Indian Institute of Technology Delhi
2013
This paper proposes a novel damping controller for subsynchronous resonance (SSR) mitigation using existing 11-kV variable frequency drive interfaced auxiliary power plant loads. The input of the proposed is turbine output (P <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">t</sub> ). standard signal that monitored in control rooms and available locally without need additional measurement and/or communication infrastructure. (ADC) adds an speed...
The creation of a suitable wide area monitoring system (WAMS) is widely recognized as an essential aspect delivering power that will be secure, efficient and sustainable for the foreseeable future. In Great Britain (GB), deployment first WAMS to monitor entire in real time was responsibility visualization dynamics using enhanced (VISOR) project. core scope VISOR project deploy this demonstrate how applications can near term provide operators planners with clear, actionable information. This...
Observability analysis determines whether a unique system state estimate can be obtained for given set of measurements, i.e., if the is fully observable. It an essential requirement robust power estimation and may carried out offline to determine measurement configuration adequate, or online ensure that any changes in available measurements (e.g., communication meter failures) have not created isolated observable islands. One aspect observability identifying islands, subnetworks within which...
This paper describes a number of novel Wide-Area Monitoring System (WAMS) capabilities and analysis tools, including new monitoring solution that covers the 4-46Hz sub-synchronous oscillation range, deployment source location algorithm. These are being demonstrated under VISOR - an innovation project has created first integrated GB WAMS in order to demonstrate tangible business benefits system. Other work from is discussed hybrid state estimation, dynamic model validation, line parameter...
This paper evaluates the impact of load dynamics on torsional interactions by considering a mix static and dynamic loads aggregated at bulk transmission level. is essential to investigate importance detailed modelling for subsynchronous resonance (SSR) studies accurately assess damping contribution capture system dynamics. SSR interaction with investigated both direct line drive connected motor loads. Damping from also assessed based their location size. The classical phenomenon observed...
Major incidents of dangerous Subsynchronous Resonance (SSR) have been caused by the loss one or more lines causing generator to come radial partially with series capacitor. Identification such in a meshed multi-compensated power network is not possible through mere topological inspection. The paper presents methodology for identifying Critical that may be hidden networks and can used System Operator raise EMS alarms against SSR threats case planned unplanned outages. also describes how Wide...
This paper presents the design and demonstration through simulations of a wide-area oscillations damping controller (WADC) for Italian grid. A simple, linear transfer function model is built using collected ring-down measurements to capture system's oscillatory behavior. constructed utilized design, instead complicated dynamic grid model. measurement-driven approach used tune parameters controller, thus can be updated online track variations system operating condition. The proposed validated...
This paper evaluates the impact of dynamic loads (induction motors) on damping Subsynchronous Resonance (SSR) based load location and aggregate inertia for IEEE 68 bus network simulated in DIgSILENT. The severity SSR oscillations is shown to increase presence Load Interactions (SSRLI), whereby may contribute towards negative under certain topologies. change investigated each by replacing static (constant impedance) model, traditionally used studies, with a 50% model. shows that torsional...
Wind has been one of the fastest growing renewable energy technologies with large utility scale installations both onshore and offshore. Battery storage systems (BESSs) are considered for co-location wind farms to make them dispatchable. As many best quality resources remote, compensating AC lines is a cost-effective solution long distance power transmission. However, Type-3 (doubly fed induction generator) turbines known interact fixed series compensation in form Subsynchronous Control...
This paper studies the impact of dynamic controls and protection schemes distributed energy resources (DERs) motor loads on bulk power system (BPS). will help characterize distribution aggregate modelling parameterization practices that can be recommended for use in BPS planning identify any sensitivity best practice to varying degrees DER penetration. The study uses a detailed unbalanced feeder model with 3-phase 1-phase voltage frequency voltage, rate change (RoCoF) alongside undervoltage...
The paper gives a complete account of the various scheduling and moderation issues faced by system operators (SO) at Load despatch centres (LDCs) in India while furnishing generation schedules for Run-of-River (ROR) type plants arranged tandem. It looks into clauses Indian Electricity Grid Code (IEGC) pertaining to hydrogenation along with providing detailed procedure followed today tries deliver compact solutions developing optimization models same. Cumulative as well individual plant 24...
Replacement of rotating machine generation sources with inverter based resources can change the trajectory primary frequency response. As interconnect to weak areas network and move farther away from loads, time taken for a source respond disturbance get longer effective magnitude response that will be received may smaller resulting in have larger rates lower nadirs/peaks. Thus, future bulk power systems, it becomes imperative consider as well would take actually provide necessary beneficial...