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건설기계의 에너지 효율 제고를 위한 비-하이브리드 신기술에 관한 리뷰
A Review on New Non-hybrid Technologies to Improve Energy Efficiency of Construction Machineries 원문보기

드라이브ㆍ컨트롤 = Journal of drive and control, v.13 no.3, 2016년, pp.53 - 66  

조중선 (Department of Control & Instrumentation Engineering, Changwon National University)

Abstract ▼ AI-Helper 아이콘AI-Helper

New non-hybrid approaches to improve energy efficiency of construction machineries are reviewed in this paper. Hydraulic systems are classified into four classes according to Backe's classification and commercially promising new technologies are carefully chosen in each class. IMV, 3-Line CPR, Close...

주제어

#건설기계   #비-하이브리드   #에너지 효율   #쓰로틀손실   #독립적 미터링제어밸브   #변위제어   #커먼 압력 레일   #유압변환기  

질의응답

핵심어 질문 논문에서 추출한 답변
IMV기술의 핵심원리는? IMV기술의 핵심원리는 각 밸브의 독립적 제어에 의해 불필요한 쓰로틀손실을 최소화시키는 것과 에너지 재생과 회수를 극대화시키는 것이다. 그림2 (a) 구성의 목적은 미터-인 및 미터-아웃 오리피스를 독립적으로 제어하여 쓰로틀손실을 최소화하는 것이다.
유압시스템만의 장점은 무엇인가? 유압시스템의 고유하고 독보적인 장점은 높은 압력밀도(Power density)이다. 이는 주로 실린더의 존재에 기인하며, 유압시스템 산업계는 상대적으로 낮은 에너지 효율에도 불구하고 틈새시장(niche market)에서 독점적인 영역을 구축하고 있다.
스풀형식의 방향제어 밸브의 에너지 효율 측면에서 단점은? 반면에 에너지 효율 측면에는 근본적인 단점이 있다. 첫 째로, 전 영역의 동작을 위해 설계된 스풀밸브의 특성에 의해 미터-인과 미터-아웃 오리피스에서의 불필요한 쓰로틀손실(Throttling Loss)을 피할 수 없다. 둘째로, 액츄에이터의 4-Q동작(4-Quadrant Operation)에서 활용 가능한 위치 및 운동에너지의 재생(Regeneration)5)과 회 수(Recuperation)5)가 어려운 구조이다. 최근의 비-하이브리드 방식의 연구는 쓰로틀손실 절감과 활용 가능한 에너지의 효과적 재활용을 통한 에너지 효율의 제고에 초점이 맞춰져 있다.
질의응답 정보가 도움이 되었나요?

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