Energy-Saving Efficiency Analysis of Elevator Power Regeneration

• Main Authors: Kun-Yu Lin, 林昆郁
• Other Authors: 練光祐
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/gjgezy

碩士 === 國立臺北科技大學 === 電機工程系 === 106 === The technology of elevator power regenerative is to apply the elevator running characteristics and the weight difference between the total weight of the elevator car and the balance weight. When the elevator is lightly loaded upwards and the heavy load is down, that are like a generator to convert the gravitational potential difference into the electrical energy is sent back to the buildings power system for use by other power-consuming equipment to achieve power savings. This study firstly carried out the actual measurement of the load difference through the elevator test tower to explore the energy saving effect of the elevator electric power regeneration technology. Then, the elevator used in the existing building with the electric power regeneration device was installed, and the power analysis was set up for a one-week measurement and record, and the energy consumption efficiency and the proportion of the regenerative power were analysis. The measurement method listed above is different from the mode of the elevator test tower. It is a long-term measurement conducted in an open mode with no restrictions on the users habits. The ultimate goal is to obtain the power of the existing elevator for the actual energy saving rate after the retrofit device. Through literature analysis and related research, it is shown that the power regeneration is most appropriate of the energy-saving methods and technologies for existing elevators. When discussing the elevator electric power regenerative technology, the energy-saving related industries often use the regenerative vehicle energy-saving regenerative technology used by electric vehicles as an example. In fact, the principles of the above two are not completely the same, so this study also gives a detailed explanation and description. In addition, this study also explores the difference between the kinds of specific conditions for energy saving rate and retrogradation energy, and analysis the correlation coefficient and the energy saving quantity, and then seeks out the main factors affecting the energy saving rate of elevator power. Relevant factors are used as reference for the introduction of elevator electric power generation technology for the assessment of existing building energy users.