EPRI programs on AC to DC Line Conversion

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Redundancy Or…assuming 15% emergency overload capability: dc ac monopole bipole tripole Earth return No earth return 0% 0% 0% 0% 57% 0% 84% 84%
Emergency/Normal Capability P ac = Normal ac loading P’ ac = Emergency ac loading Emergency pick-up capability of the line to be converted Increase in parallel ac system loading: Increase in flow on the converted line itself: Before Conversion ΔP ac = P’ ac –P ac ΔMW ac = ΔP dc - ΔP ac ΔMW conv. line = P dc -P ac ΔMW path = ΔMW ac + ΔMW conv. line = P’ dc – P’ ac After Conversion ΔP dc = P’ dc –P dc
Page 1 and 2: Conversion of AC Lines to HVDC <str
Page 3 and 4: EPRI AC to DC conv
Page 5 and 6: Conversion means buying converter c
Page 7 and 8: Conversion of AC Lines to HVDC Bipo
Page 9 and 10: Economic feasibility sensitive to M
Page 11 and 12: Pole 3 alternately relieves some po
Page 13 and 14: Tripole Power Capability At any giv
Page 15 and 16: Tripole Terminal Requirements: •
Page 17 and 18: Economic feasibility sensitive to M
Page 19 and 20: Comparison of line losses If dc is
Page 21: Redundancy Redundancy = Important b
Page 25 and 26: Conversion of AC Lines to HVDC 1. C
Page 27 and 28: Example Gradient Precedents: Exampl
Page 29 and 30: Conversion of AC Lines to HVDC 2. I
Page 31 and 32: AC Operation D e = Electrical compo
Page 33 and 34: Conversion of AC Lines to HVDC Exam
Page 35 and 36: Conclusions: 1. V dc may be as high
Page 37 and 38: Example costs for transmitting elec
Page 39 and 40: Cost to gain transfer by ac to dc c
Page 41 and 42: Conversion of AC Lines to HVDC Curr

EPRI programs on AC to DC Line Conversion

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