Wind and Solar Energy Systems

Q.1. Explain the relation between power generated by a wind turbine and wind velocity. [2]

Q.2. Explain the term 'stall'. [2]

Q.3. Explain the reason for deploying induction generators in a wind turbine. [2]

Q.4. What is a Sun angle? [2]

Q.5. Explain application of MPPT. [2]

Q.6. What is a wind farm? [2]

Q.7. Explain some application of solar thermal power generation. [2]

Q.8. Explain a major difference between monocrystalline & polycrystalline. [2]

Q.9. Explain uses of PV solar module. [2]

Q.10. What is the maximum efficiency of a wind turbine? [2]

Q.1. Explain the history of wind power and Indian & Global statistics. [8]

Q.2. Explain the generator converter configurations in a wind turbine. [8]

Q.3. Explain working of Doubly fed induction generators in wind generator topologies. [8]

Q.4. Explain estimation of solar energy availability. [8]

Q.5. Explain Betz law and derive its mathematical model. [8]

Q.6. Explain 'Grid Code' and explain its technical requirements. [8]

Q.7. Explain concept of 'Solar Pond' and its application. [8]

Q.1. Explain fixed and variable speed wind turbines. [15]

Q.2. Design a power electronic base converters to obtain supply for an Indian active distribution network. [15]

Q.3. With reference to solar resources, explain the following - [15]

• (a) Earth Sun angle
• (b) Solar Day length
• (c) Solar Geometry

Q.4. Explain Hybrid and Isolated operations of Solar PV and wind systems. [15]

Q.5. Write short note on any two - [15]

• (a) Parabolic trough
• (b) Fresnel
• (c) Central Receivers