Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Development of Performance Analysis 80 kW High-efficiency Permanent Magnet Generator for Radar System Power Supply

레이더 체계 전원공급용 80 kW급 고효율 영구자석형 발전기 개발 및 성능분석

  • 유지호 ((주)썬테크 기업부설연구소) ;
  • 조종현 ((주)썬테크 기업부설연구소) ;
  • 정민길 (LIG넥스원(주) 감시정찰연구소) ;
  • 박성진 (LIG넥스원(주) 감시정찰연구소) ;
  • 강광희 (LIG넥스원(주) 미래기술연구소)
  • Received : 2018.07.16
  • Accepted : 2019.01.25
  • Published : 2019.02.05
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Abstract

Electrical power supply is needed to operate the radar system in the field. In addition, it should not cause performance deterioration under the environmental factors due to characteristics of military equipment, and should not cause malfunction due to electromagnetic waves generated in radar, and then should not cause malfunction in radar equipment. Therefore, By applying a permanent magnet to the rotor of the generator, light weighting and high efficiency of generator were achieved. As a result, electrical performance test of the generator, the rated output power was 80.8 kW, the maximum output power was 88.1 kW, and the output power efficiency was 98.1 % under the full load condition. When the load capacity of the generator was changed from no load to full load, the maximum voltage variation was 3.6 % and the frequency variation was 0.3 %. As a result of the transient response test for measuring the output power of the generator according to the load characteristics change, the maximum voltage variation of 7.9 %, frequency variation of 0.5 % were confirmed, and the transient response time was 2.1 seconds. Environmental tests were conducted in accordance with MIL-STD-810G and MIL-STD-461F to evaluate the operability of the generator groups. Normal operation of radar system generator group was confirmed under high temperature and low temperature environment conditions. Electromagnetic tests were conducted to check if electromagnetic wave generated from both radar system and generator group in operation caused any performance deterioration to each other. As a result, it was confirmed that the performance deterioration due to electromagnetic wave inflow, radiation, and conduction did not occur. It is expected that it should be possible to provide high efficiency power supply and stable power supply by applying to various military system as well as radar system.

Keywords

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Fig. 1. Shelter installation of generator set

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Fig. 2. Block diagram of generator set

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Fig. 3. Flux-line of generator set

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Fig. 4. Voltage curve of generator set(Full load)

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Fig. 5. Current curve of generator set(Full load)

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Fig. 6. Torque curve of generator set(Full load)

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Fig. 7. Diagram of generator performance test

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Fig. 8. Result of generator power factor measurement

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Fig. 9. Measuring wave at generator out putperformance test

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Fig. 10. Temperature profile of high & low temperature storage test

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Fig. 11. Arrangement of high & low temperature operation test

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Fig. 12. Temperature profile of high & low temperature operation test

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Fig. 13. Arrangement of generator RE102 test

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Fig. 14. Results of generator RE102 test

Table 1. Dimensions of generator set

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Table 2. Result of generator performance analysis

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Table 3. Result of generator performance test

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Table 4. Result of generator efficiency test

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Table 5. Results of generator voltage/frequency regulation test

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Table 6. Result of generator transient response test

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Table 7. Condition of generator environmental test

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Table 8. EMC characteristic requirements

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Table 9. Test results of electric field radiated susceptibility

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Table 10. Specification of conducted susceptibility test

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