6 research outputs found

    A Study on Pressure Control in Fuel Cell Stack of Electric Propulsion Ship using Neural Networks

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    ์ตœ๊ทผ ๊ตญ๋‚ด์™ธ์ ์œผ๋กœ ์„ ๋ฐ•์—์„œ ๋ฐœ์ƒ๋˜๋Š” ํ•ด์–‘ ๋Œ€๊ธฐ์˜ค์—ผ ๋ฐฐ์ถœ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๊ธฐ ์œ„ํ•ด ๋Œ€์ฒด์—ฐ๋ฃŒ๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ์นœํ™˜๊ฒฝ ์ถ”์ง„์‹œ์Šคํ…œ์— ๊ด€ํ•œ ์—ฐ๊ตฌ๊ฐ€ ํ™œ๋ฐœํžˆ ์ง„ํ–‰๋˜๊ณ  ์žˆ๋‹ค. ๊ทธ ์ค‘ ์ˆ˜์†Œ๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ์—ฐ๋ฃŒ์ „์ง€๋ฅผ ํ™œ์šฉํ•œ ์ „๊ธฐ์ถ”์ง„์‹œ์Šคํ…œ์— ๋Œ€ํ•œ ์—ฐ๊ตฌ ๋ฐ ์‹ค์ฆ์ด ํ™œ๋ฐœํžˆ ์ด๋ฃจ์–ด์ง€๊ณ  ์žˆ๋‹ค. ์„ ๋ฐ•์— ์ ์šฉ๋œ ์ˆ˜์†Œ์—ฐ๋ฃŒ์ „์ง€๋Š” ์…€์˜ ์†์ƒ์„ ๊ณ ๋ คํ•˜์—ฌ ๊ธ‰๊ฒฉํ•œ ์ „๋ ฅ ๋ณ€๋™์„ ์ตœ์†Œํ™”ํ•˜๋Š” ์ „๋ ฅ๊ด€๋ฆฌ์‹œ์Šคํ…œ์ด ์ ์šฉ๋˜์–ด ์‹œ์Šคํ…œ ์ œ์–ด ๋กœ์ง์ด ๋น„๊ต์  ๋ณต์žกํ•˜๊ณ  ํ•จ๊ป˜ ์‚ฌ์šฉ๋˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ์˜ ์—ญํ• ์ด ํฌ๋‹ค. ๋ณธ ๋…ผ๋ฌธ์—์„œ๋Š” ์—ฐ๋ฃŒ์ „์ง€์‹œ์Šคํ…œ์„ ์ „๊ธฐ์ถ”์ง„์„ ๋ฐ•์˜ ์ฃผ์ „์›์— ์ ์šฉํ•˜๊ธฐ ์œ„ํ•ด ์„ ๋ฐ•์˜ ๋ถ€ํ•˜ ๋ณ€๋™์—๋„ ์—ฐ๋ฃŒ์ „์ง€ ์Šคํƒ์˜ ๋‚ด๋ถ€ ์••๋ ฅ์„ ์•ˆ์ •์ ์œผ๋กœ ์œ ์ง€ํ•˜๊ธฐ ์œ„ํ•ด ์†์‘์„ฑ๊ณผ ์•ˆ์ •์„ฑ์„ ๊ฐ–์ถ˜ ์ˆ˜์†Œ์—ฐ๋ฃŒ ๋ฐ ๊ณต๊ธฐ๊ณต๊ธ‰ ์ œ์–ด๊ธฐ๋ฅผ ์ œ์•ˆํ•˜๊ณ  ์‹œ๋ฎฌ๋ ˆ์ด์…˜์„ ํ†ตํ•ด ์œ ํšจ์„ฑ์„ ํ™•์ธํ•˜์˜€๋‹ค.| Recently, studies on propulsion systems using alternative fuels are being actively conducted to solve international marine air pollution problems and greenhouse gas problems. Among them, research and demonstration of electric propulsion systems using hydrogen fuel cells are being actively conducted. The hydrogen fuel cell applied to the ship uses a power management system that minimizes load fluctuations, so the system control logic is relatively complex and the battery used together plays a large role. In this paper, in order to apply the fuel cell system to the ship's main power source, hydrogen fuel and air supply controller for PEMFC fuel cell with quick response and stability in the ship's load fluctuation was proposed, and its validity was confirmed through simulation.์ œ 1 ์žฅ ์„œ๋ก  1 1.1 ์—ฐ๊ตฌ๋ฐฐ๊ฒฝ 1 1.2 ์—ฐ๊ตฌ๋‚ด์šฉ 2 1.3 ๋…ผ๋ฌธ์˜ ๊ตฌ์„ฑ 3 ์ œ 2 ์žฅ ์—ฐ๋ฃŒ์ „์ง€ ์ œ์–ด์‹œ์Šคํ…œ์ด ์ ์šฉ๋œ ์ „๊ธฐ์ถ”์ง„์„ ๋ฐ• 4 2.1 ์—ฐ๋ฃŒ์ „์ง€ ๋ฐœ์ „์›์„ ๊ฐ–๋Š” ์ „๊ธฐ์ถ”์ง„์‹œ์Šคํ…œ 4 2.1.1 ๊ณ ๋ถ„์ž ์ „ํ•ด์งˆ ์—ฐ๋ฃŒ์ „์ง€ (PEMFC) 5 2.1.2 ๋ฐฐํ„ฐ๋ฆฌ 6 2.1.3 ์ง๋ฅ˜๋ฐฐ์ „์‹œ์Šคํ…œ 6 2.1.4 ์ „๋ ฅ๋ณ€ํ™˜์žฅ์น˜ 7 2.2 PEMFC ์ œ์–ด์‹œ์Šคํ…œ 8 ์ œ 3 ์žฅ ์‹ ๊ฒฝํšŒ๋กœ๋ง ๊ฐœ์š” 10 3.1 ์‹ ๊ฒฝํšŒ๋กœ๋ง์˜ ์ƒ๋ฌผํ•™์  ๊ตฌ์กฐ 10 3.2 ์‹ ๊ฒฝํšŒ๋กœ๋ง์˜ ๊ตฌ์„ฑ์š”์†Œ ๋ฐ ๋™์ž‘ํŠน์„ฑ 11 3.3 ๋‹ค์ธต๊ตฌ์กฐ์˜ ์‹ ๊ฒฝํšŒ๋กœ๋ง ๊ตฌ์กฐ์™€ ๋™์ž‘ํŠน์„ฑ 11 3.4 ์˜ค๋ฅ˜์—ญ์ „ํŒŒํ•™์Šต ์•Œ๊ณ ๋ฆฌ์ฆ˜ 12 ์ œ 4 ์žฅ ์‹ ๊ฒฝํšŒ๋กœ๋ง์„ ์ด์šฉํ•œ ์—ฐ๋ฃŒ์ „์ง€ ์Šคํƒ ์••๋ ฅ ์ œ์–ด์‹œ์Šคํ…œ 14 4.1 PEMFC ๋ชจ๋ธ๋ง 15 4.1.1 ์–‘๊ทน๊ณผ ์Œ๊ทน์˜ ๋‚ด๋ถ€ ์••๋ ฅ ๋ชจ๋ธ 15 4.1.2 ์ „์•• ๋ชจ๋ธ 18 4.1.3 ๋‹ค์ค‘์ž…๋ ฅ ๋‹ค์ค‘์ถœ๋ ฅ ํ”ผ๋“œ๋ฐฑ ์„ ํ˜•ํ™”์ œ์–ด๊ธฐ๋ฒ• 20 4.1.4 ์ถœ๋ ฅ์ œ์–ด๊ธฐ 24 4.4 ์‹ ๊ฒฝํšŒ๋กœ๋ง์„ ์ด์šฉํ•œ ์—ฐ๋ฃŒ์ „์ง€ ์Šคํƒ ์••๋ ฅ ์ œ์–ด์‹œ์Šคํ…œ 26 ์ œ 5 ์žฅ ์‹œ๋ฎฌ๋ ˆ์ด์…˜ 42 5.1 ๊ธฐ์กด ์—ฐ๋ฃŒ์ „์ง€ ์Šคํƒ ์••๋ ฅ ์ œ์–ด์‹œ์Šคํ…œ 44 5.1.1 ์‹œ๋ฎฌ๋ ˆ์ด์…˜ Case 1 48 5.1.2 ์‹œ๋ฎฌ๋ ˆ์ด์…˜ Case 2 50 5.2 ์‹ ๊ฒฝํšŒ๋กœ๋ง์„ ์ด์šฉํ•œ ์—ฐ๋ฃŒ์ „์ง€ ์Šคํƒ ์••๋ ฅ ์ œ์–ด์‹œ์Šคํ…œ 56 5.2.1 ์‹œ๋ฎฌ๋ ˆ์ด์…˜ Case 1 59 5.2.2 ์‹œ๋ฎฌ๋ ˆ์ด์…˜ Case 2 61 ์ œ 6 ์žฅ ๊ฒฐ๋ก  66 ์ฐธ๊ณ ๋ฌธํ—Œ 68Maste
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