無功伏 的英文怎麼說
中文拼音 [wúgōngfú]
無功伏
英文
reactive volt-
The power supply system is 380volts, 3 - phase, which is transformed to 485volts, 3 - phase and then rectified, by solid state silicon rectifier modules, to 600 volts dc, the whole system having a capacity of 500kw. this power is connected to the two overhead power lines to supply the needs of the trolleybuses anywhere along the system
架空電纜網路採用三百八十伏特三相之供電系統經升壓至四百八十五伏特，再經矽質整流器調整至直流六百伏特，整個系統之電功率為五百仟瓦。電源接駁到兩條架空電纜供無軌電車使用。Electricity meters - specification for class 3 var - hour meters
電度表.第4部分: 3級無功伏安小時電度表規范Guide for the functional specification of transmission static var compensators
靜態無功伏安補償器的功能規范指南Three phase var hour meter
三相無功伏安小時計How “ the fellow by the name of rowan ” took the letter, sealed it up in an oilskin pouch, strapped it over his heart, in four days landed by night off the coast of cuba from an open boat, disappeared into the jungle, and in three weeks came out on the other side of the island, having traversed a hostile country on foot, and delivered his letter to garcia ? are things i have no special desire now to tell in detail
那個名叫羅文的人，如何接過信，把它裝進一個油紙袋裡，封好，吊在胸口，四天後在一個暮色籠罩的夜晚，他棄扁舟上岸，消失在古巴的熱帶叢林中；三個星期之後，他成功徒步穿越了一個危機四伏的國家，把信送到了加西亞手上?這些細節無意贅言。In the system, control unit accomplishes back - emf zero - crossing information reading and closed loop commutation. the system eliminates the pwm interferences and the commutating interferences by filtering with software algorithm. in order to make the bldc commutate exactly, the method of three - point estimation is used for phase locking in the system. the system also accomplishes several important objects, such as tmppt of photovoltaic arrays, unmanned supervision of the system, fault detection etc. the results of the experiment show that the device, which is made on the base of the principle above, can control the motor to complete the exact commutation
系統以motorola單片機jl3為核心，完成了系統外圍硬體電路和控制軟體設計，實現了直流無刷電機反電勢過零檢測，利用軟體濾波的方式消除了pwm波干擾及換相干擾；採用三點預估演算法，進行相位鎖定，以完成直流無刷電機準確換相；同時實現了光伏陣列工作點的tmppt跟蹤、系統無人監控和故障檢測等功能。分享友人