Problem 2: (25 points) The parameters of a doubly fed induct…
Problem 2: (25 points) The parameters of a doubly fed induction generator are given below. The stator is connected to a three-phase grid at 650 V RMS (line-line) and 60 Hz. Stator resistance: Rs = 0 (neglected for ease of calculation) Rotor resistance: Rr = 0.004 Ω Stator leakage inductance: Lls = 0.1 mH Rotor leakage inductance: Llr = 0.1 mH Magnetizing inductance: Lm = 1.5 mH Number of poles: 6 Stator-rotor turns ratio: 1:1 It is given that the system operates at a slip s = -0.1 and the stator delivers 1 MW to the grid at unity power factor. Draw the per-phase equivalent circuit corresponding to the given operating condition and parameters. Calculate the rotor speed, ωr. Calculate the following four phasor quantities at the given operating condition: Is (stator current), Im (magnetizing current), Ir’ (rotor current), and Vr’ (RSC voltage). Calculate the active power and reactive power processed by the rotor side converter.
Read DetailsWrite a dialogue of at least 1,200 words featuring one chara…
Write a dialogue of at least 1,200 words featuring one character from an assigned film and two philosophers assigned this semester. Choose one of the questions below as your theme: What is right? What is real? What is true? Are we free? Grading Criteria (18 points total) Title & Opening (2 pts): Creative, engaging title and opening hook that draws the reader into the philosophical stakes. Philosophical Question (3 pts): The chosen question (right, real, true, or free will) is clearly articulated and genuinely explored. Accurate Treatment of Thinkers & Character (6 pts): Each philosopher’s position is accurately rendered in spirit. The film character’s perspective is authentically drawn from specific details in the film. All three voices are distinct. Creative Dialogue (2 pts): Genuinely conversational, not a lecture with line breaks. Characters interrupt, question, clarify, joke. The exchange has energy and rhythm. Intentional Conclusion (2 pts): The ending is earned — whether a stalemate, a new conclusion steered by the author, or a refined question. Philosophy is an ongoing discussion, and your ending should reflect that you have made a conscious choice about where this conversation lands. Enjoyable Writing (3 pts): Warm, clear, clever, and creative. A pleasure to read. Humor and voice emerge naturally from the characters and situation. Preparation: Notecards During the proctored writing session, you may refer to two handwritten notecards. These are the only materials you may bring. Your notecards may include: Key quotes from philosophers Brief outlines or bullet points Specific film scenes or character moments Key terms or questions you want to explore Prepare your notecards thoughtfully. They will be checked during the proctoring setup. Note on Accuracy & Notecard Use You are not expected to have memorized each thinker or character’s ideas. You will be evaluated on your knowledge of the spirit of their positions. Your notecards are there to support you — use them to recall key quotes, concepts, or film details. You are invited to take creative leeway in representing the philosophers’ views, but ensure you accurately render their core commitments. The one exception: as the thinkers engage in Socratic dialogue, you may have them arrive at a compromise or even admit error in discussion with the other thinker. Such a resolution is not necessary. Philosophy is, after all, an ongoing discussion. Grading Criteria (18 points total) Criteria Points Description Title & Opening 2 pts Creative, engaging title and opening hook that draws the reader into the philosophical stakes. Philosophical Question 3 pts The chosen question (right, real, true, or free will) is clearly articulated and genuinely explored. Accurate Treatment of Thinkers & Character 6 pts Each philosopher’s position is accurately rendered in spirit. The film character’s perspective is authentically drawn from specific details in the film. All three voices are distinct. Creative Dialogue 2 pts Genuinely conversational, not a lecture with line breaks. Characters interrupt, question, clarify, joke. The exchange has energy and rhythm. Intentional Conclusion 2 pts The ending is earned — whether a stalemate, a new conclusion steered by the author, or a refined question. Philosophy is an ongoing discussion, and your ending should reflect that you have made a conscious choice about where this conversation lands. Enjoyable Writing 3 pts Warm, clear, clever, and creative. A pleasure to read. Humor and voice emerge naturally from the characters and situation. Total: 18 points (18% of final grade)
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