Course Content Details
Course Content Details
You can find out more about each of the lectures and sessions included in the course here.
- Week One
-
- HVDC worldwide. Motivation for HVDC. Advantages of HVDC. Basic configurations. Main components. Dragan Jovcic
- Thyristor properties. Snubbers. Calculation of losses. Line commutated 6-pulse converter. Basic equations, operating modes and control. Dragan Jovcic
- LCC HVDC rectifier converter station. 12-pulse and 24-pulse systems. Operation, modelling and control. Dragan Jovcic
- LCC HVDC inverter controller. Extinction angle controller. Commutation failure. HVDC synchronisation with AC grid. Phase Locked Loops. Transvector PLL. Dragan Jovcic
- LCC HVDC system operation and control. V-I operating diagrams. Operating modes. Power direction reversal. Dragan Jovcic
- LCC HVDC phasor modelling and interactions with AC system. P and Q dependency curves. Dragan Jovcic
- LCC HVDC design example. Power flow, and voltage/current calculation. Converter sizing. LCC HVDC detailed transient modelling on SIMULINK. A. Jamshidifar
- LCC HVDC operation with weak AC systems. SCR and ESCR definitions. Use of synchronous condensers. Systems with low inertia. CCC (Capacitor Commutated Converter) HVDC. LCC HVDC with SVC, STATCOM and Synchronous condensers. A. Jamshidifar
- HVDC fault management. AC and DC fault scenarios on detailed HVDC SIMULINK models. LCC HVDC overcurrent protection systems. LCC HVDC overvoltage protection. VDCOL systems. A. Jamshidifar
- LCC HVDC harmonics and filtering. Characteristic and non-characteristic harmonics. AC-DC harmonic transfer. Second harmonic resonance on HVDC systems. Design of a C-type filter. A. Jamshidifar
- VSC HVDC applications. Performance and cost comparison with LCC HVDC. VSC HVDC, topologies, components and operation. DC cable types. VSC HVDC design and sizing of major components. A. Jamshidifar
- IGBT switches. Basic properties, operating curves and control. Conduction and switching loss calculation. A. Jamshidifar
- Single phase and 3-phase 2/3-level VSC converter, modelling and simulation. PWM converter control. Firing signal generation and synchronisation with AC. A. Jamshidifar
- Multilevel converters. Half bridge MMC. Full bridge MMC. Multilevel VSC HVDC A. Jamshidifar
- VSC converter modelling and vector control. Converter average value model. Coordinate frame transformation. Inner current control. A. Jamshidifar
- VSC HVDC phasor modelling and interactions with AC system. PQ operating diagrams. Operating limits. Influence of parameters. A. Jamshidifar
- VSC converter SIMULINK simulation. Controller tuning. VSC HVDC control. SIMULINK simulation of steady-state. A. Jamshidifar
- Grid forming control with VSC HVDC. SIMULINK examples. A. Jamshidifar
- Week Two
-
- Half bridge MMC HVDC modelling and control. Average value model. Circulating current control. Interactions with AC systems. A Jamshidifar
- Full bridge MMC HVDC modelling and control. Average value model. FB HVDC start up and charging. Dragan Jovcic
- MMC HVDC under unbalanced conditions. Balancing between phases. Balancing between arms. Dragan Jovcic
- 2-level VSC, HB MMC and FB MMC under AC and DC fault conditions. SIMULINK simulation of fault conditions. Dragan Jovcic
- VSC HVDC application for grid support. Embedded and connecting HVDC. Operation with passive systems and black start. VSC with variable speed motors. Dragan Jovcic
- Introduction to DC grids. DC grid planning. Technical challenges. Dragan Jovcic
- Multiterminal HVDC with LCC converters. Operational experience. Topologies and prospects, Dragan Jovcic
- Multiterminal HVDC with VSC converters. Meshed DC networks. DC grid power flow. DC grid control. DC fault performance. Dragan Jovcic
- DC grid fault management. DC Circuit breakers. Mechanical topologies. Semiconductor and hybrid topologies. DC grid protection strategy. Dragan Jovcic
- High-power DC/DC converters. DC/DC choppers. Transformer based topologies. LCL circuit based topologies. Dragan Jovcic