ee_285_Assignment_8

Question 4

Explain the concept of electrical load balancing in power systems. How is load balancing achieved, and why is it important for the stability of the electrical grid?

Analyse several voltage and current situations in different loading scenarios in a simplified radial (transformer to consumption) medium-voltage power system example. There are only 2 nodes in the 35 kV line – node 0 from the 110/35 kV and node 1 with one consumer. Briefly reflect on the complexity of the calculations for known input or output voltage, as well as for fixed or voltage-dependent consumption in this simple power system model.  Analyse and discuss the sensitivity of the voltage drop [in % of amplitude and the degrees of phase] with respect to the current level [in %] and to the power factor.

Electricity Distribution Network - What are the UK power distribution network voltage levels? Why there is the need for a distribution management system in electric power distribution networks? Power System Operation and Control - State three reasons why it is important to maintain the supply frequency within statutory limits for a power system. Power System Operational Issue - Briefly discuss what are the major power quality issues, particularly in power-electronic-interfaced Microgrid systems. New Electricity Demand - Briefly explain the concept of plug-in hybrid electric vehicle technology and its challenges to the power grid. Power System Operational Issue - Briefly explain the concept of Dynamic Network Rating (DNR), and what are the major benefits for electricity distribution networks and distribution network operators (DNOs). Electricity Network Operation with High Penetration Level of Renewables Although wind power is seen as offering many countries the potential to reduce…

Electrical Engineering The subject is: Smart Grid Applications and Technologies Title: Study of Energy Management System (EMS) and SCADA   What is called EMS? And why Energy Management System is important? What are the applications of EMS? And what are the 2 major characteristics in EMS? What are the tools used in EMS? And what are the most used control systems in EMS? What is the main goal of EMS? And what are the limitations of EMS? What is called SCADA? And what are the components in SCADA? And list the applications of SCADA.

Q3 Power flow (load flow) is an important part of any power system studies.   (A)       In relation to a power system:   Explain three of the key assumptions that are made in developing the fast-decoupled power flow technique and why these assumptions are often reasonable for a high voltage power grid, Discuss the reasons that make the load flow problem nonlinear. In a 20 Bus power system with 5 buses that have generating units, determine the number of PV buses, PQ buses and buses where the voltage magnitudes are known. Justify your answer.

Analyse several voltage and current situations in different loading scenarios in a simplified radial (transformer to consumption) medium-voltage power system example. There are only 2 nodes in the 35 kV line – node 0 from the 110/35 kV and node 1 with one consumer. The physical characteristics of the line and the loading scenarios are individualized for each student – please see the attached file Excel “WM9P3 Task1 data” for your particular data set.  Briefly reflect on the complexity of the calculations for known input or output voltage, as well as for fixed or voltage-dependent consumption in this simple power system model.  Analyse and discuss the sensitivity of the voltage drop [in % of amplitude and the degrees of phase] with respect to the current level [in %] and to the power factor.

1.1. Describe the basics of Integrated Control and Safety System (ICSS), major subsystems, functional operation, connections and architecture. 1.2. Give the examples.

Discuss the concept of load shedding in power systems. Under what circumstances is load shedding implemented, and what are the consequences of load shedding for consumers and the grid?

7. Describe the direct connection, series and parallel methods of measurements using Q-meters? Why and how do we use these methods, explain in brief.

Explain the concept of smart grids and their impact on the future of power systems.

Describe the differences between smart grids and microgrids. How do microgrids integrate into smartgrids. Explain the differences and methods for communication for smartgrids and microgrids. How do these control systems work/coordinate with other systems.