Radio interference from HVDC converter stations. Final report

Technical Report · Mon Oct 01 00:00:00 EDT 1984

OSTI ID:6030717

Slapp, J; Bhatti, J S; DeVore, R V

Electromagnetic (EM) wave effects at high-voltage direct current (HVDC) converter stations were investigated to obtain: (1) a better understanding of EM phenomena; (2) an improved capability to predict EM field strengths; and (3) an analysis of mitigation methods. Field measurements were performed at three converter stations of different design, manufacture, and dc voltage levels; two stations used thyristor valves and one used mercury arc valves. The measurements included both electric and magnetic field strengths and high-frequency characteristics of HVDC converter station equipment. Information is provided on the techniques developed and used for translating equipment measurements into model components, together with procedures and assumptions used in building the model. Mitigation methods were investigated and practical calculation methods developed that are suitable for use in the design of converter stations. It is shown that valve-hall screening is effective in containing EM waves but that conductors through building walls provide a path for some EM energy to reach the converter station exterior. Mitigation of such conducted noise includes reduction in the generation of EM energy and/or filtering of generated noise. The better understanding of the EM phenomenon that resulted from this project has prepared the way for development of digital methods for calculating and predicting EM field strengths in an HVDC converter station and its exterior and design of filter circuits for mitigating undesirable EM wave effects. Additional research on the computer model and filter design is planned.

• Research Organization: International Engineering Co., Inc., San Francisco, CA (USA); Ohio State Univ., Columbus (USA). Dept. of Electrical Engineering
• OSTI ID: 6030717
• Report Number(s): EPRI-EL-3712; ON: TI85920151
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
42 ENGINEERING
HVDC SYSTEMS
RADIO NOISE
RADIO EQUIPMENT
INTERFERENCE
DIRECT ENERGY CONVERTERS
ELECTROMAGNETIC FIELDS
HARMONICS
DC SYSTEMS
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
NOISE
OSCILLATIONS
POWER SYSTEMS
RADIATIONS
RADIOWAVE RADIATION
200100* - Fossil-Fueled Power Plants- Power Plants & Power Generation
420200 - Engineering- Facilities
Equipment
& Techniques