Effect of HVDC line faults on transient torsional torques of turbine-generator shafts

Journal Article · Mon Aug 01 00:00:00 EDT 1994 · IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/59.336117· OSTI ID:6843830

Shi, W ^[1]; Iravani, M R ^[2]

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1. Xi'an Jiaotong Univ. (China). Dept. of Electrical Engineering
2. Univ. of Toronto, Ontario (Canada). Dept. of Electrical Engineering

This paper investigates the effects of HVdc line faults, line de-energization, and line re-energization on the transient torsional stresses of steam turbine-generator (T-G) units. The studies are conducted on a bipole HVdc system which connects a T-G set to a large ac system. The shaft transient stresses of the T-G set as a result of HVac line fault, fault clearing, and automatic reclosure are also determined when the HVdc transmission system is replaced by an equivalent double-line HVac system. The EMTDC program is used for the simulation studies. The studies conclude that transient shaft stresses as a result of HVdc line fault and its subsequent switching events are (1) significantly less severe than those of HVac faults and subsequent switchings, and (2) not sensitive to the fault location and disturbance duration.

• OSTI ID: 6843830
• Journal Information: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States), Vol. 9:3; ISSN 0885-8950
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
20 FOSSIL-FUELED POWER PLANTS
HVAC SYSTEMS
ELECTRICAL FAULTS
HVDC SYSTEMS
MECHANICAL SHAFTS
STRESSES
TURBOGENERATORS
AC SYSTEMS
DC SYSTEMS
ELECTRIC GENERATORS
ENERGY SYSTEMS
EQUIPMENT
MACHINE PARTS
MACHINERY
POWER SYSTEMS
SHAFTS
TURBOMACHINERY
240202* - Power System Networks
Transmission & Distribution- DC Systems- (1990-)
200104 - Fossil-Fueled Power Plants- Components