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- The Modes of Interface between Central AC System and Building Automation System 中央空調與樓宇自控系統的幾種接口方式
- Low Voltage AC system operating voltages from 120 to 600 VAC. 低壓交流電系統中從120到600VAC的電壓稱(chēng)為低壓。
- Medium Voltage AC system operating voltages from 601 to 15000 VAC. 中壓交流電系統中從601到15000VAC的電壓稱(chēng)為中壓。
- Back to back HVDC system had been used to join AC systems. 背靠背高壓直流輸電(HVDC)系統已經(jīng)在交流系統連網(wǎng)中得到了應用。
- Central AC, Stove, full new remodeled interior, brand new carpet. No pet allowed. 中央冷氣,爐頭,全新裝修,全新地毯,沒(méi)寵物
- The DC system is normally supplied from a battery charger system, which is supplied from the low voltage AC system. 直流系統通常由蓄電池充電系統供電,蓄電池充電系統由低壓交流系統供電。
- Like your body, the air conditioning compressor is the heart of the AC system, and Freon is the blood. 像你的身體一樣，空調壓縮機是空調系統的心臟，氟里昂就是流動(dòng)的血液。
- It is also used as a backup power for the ac system control and protection and for starting the APU. 同時(shí)也作為直流系統控制、保護及APU啟動(dòng)的備用直流電源。
- The 115 volt ac system is supplied by two engine driven generators, APU driven generator or external power. 115伏交流電源由兩臺發(fā)動(dòng)機驅動(dòng)的發(fā)電機、APU發(fā)電機或地面電源提供。
- As re-active power cannot be transmitted over DC lines, each AC system must supply the reactive power for the connected DC terminal. 由于無(wú)功功率不能通過(guò)直流線(xiàn)路輸送,每個(gè)交流系統必須提供無(wú)功給所聯(lián)接直流換流終端站。
- The battery chargers maintain a charge on the station batteries, which supply power to the DC system if the AC system fails. 蓄電池充電器持續對變電站蓄電池充電。若交流系統發(fā)生故障,就由直流系統供電。
- With the development of power grid, multi-infeed HVDC (MIDC) embedded in one AC system has emerged in south China power grid and east China power gird. 隨著(zhù)我國電網(wǎng)的發(fā)展，南方電網(wǎng)和華東電網(wǎng)出現了多饋入交直流系統。
- An iterative algorithm for the interface between the HVDC dynamic phasor model and the AC system is then investigated by hybrid simulation. 通過(guò)混合仿真研究了HVDC動(dòng)態(tài)相量模型與交流系統之間的接口迭代算法。
- Westinghouse engineers eventually solved these problems by modifying Tesla's motor and developing a new AC system using three-phase, 60-cycle current. 西屋的工程師改良特士拉的馬達，發(fā)展出使用三種相位以及60赫茲電流的新AC系統，終于解決了這些問(wèn)題。
- Comparing with 50Hz AC system and DC system, we can observe that the use of FFTS will bring a significant capital saving. 最后，對在我國應用分頻輸電系統的前景及經(jīng)濟效益進(jìn)行了分析，結果表 明該系統的應用可以節約大量資金。
- The QSS (Quasi Steady State) model of converter which neglects the negative impedance of DC system will bring some errors when three phase unbalanced fault occurs in AC system. 當交流系統發(fā)生三相不對稱(chēng)故障時(shí),忽略直流系統負序分量的準穩態(tài)模型將給交直流混合系統的仿真帶來(lái)較大的誤差。
- Voltage stabibity trends to be serious in high voltage DC system connected into a weak AC system, and it becomes more complicated in multi-infeed HVDC (MIDC) system. 連于弱交流系統的HVDC電壓穩定問(wèn)題嚴重，特別是在多饋入交直流系統中。
- Comparing with HVDC, the FFTS system not only can save an electronic converter terminal, but also easily lead branches, forming a network like conventional AC system. 分頻輸電與直流輸電相比，不僅少了一端換流站，而且很容易引出支路并形成網(wǎng)絡(luò )，有明顯的優(yōu)點(diǎn)。
- This paper designed an additional controller by fuzzy control method.The additional controller makes AC system more steady by the HVDC emergency support. 本文采用模糊控制技術(shù)設計了附加控制器，通過(guò)控制直流系統的功率注入以保持交流系統的頻率穩定。
- Is government becoming too centralized? 政府的權力是否越來(lái)越過(guò)分集中了?
