磁場強勵 的英文怎麼說
中文拼音 [cíchǎngqiánglì]
磁場強勵
英文
field-forcing-
An ambient field aids the magnetization from the exciting current.
背景場加強了激勵電流的磁化強度。Next, in order to comprehand the electromagnetic characteristics and the dynamic characteristics of the new type of magnetic micromotors, the dissertation applied the concept of the magnetic scarlar potential of the irrotational magnetic fields and set up the mathmatic model for the inner magnetic field of the new type of motors from the basic equations and the boundary conditions of the motor magnetic field. oh the basis of the mathmatic model, the dissertation analized the various qualities of the magnetic field of the air gap between the rotor and the stator and gave a detailed calculation of the air gap ' s magnetic potential, magnetic field intensity, magnetic induction, the shape of the magnetic scarlar potential level surface, the distribution of the magnetic circuit, the magnetic induction the self - inductance and the mutual inductance of the coils
其次，為全面了解這種新型電磁電機的電磁特性和動力特性，本文從電機磁場的基本方程及其邊界條件出發，應用無旋磁場的標量磁位概念，建立了端面搖擺式電磁微電機內部磁場的數學模型，並以此為基礎，詳細分析了電機氣隙磁場的各方面性質，對氣隙磁場的磁標位、磁場強度、磁感應強度、等磁位面形狀、電機工作磁路的分佈、電機的工作磁通量以及激勵繞組的自感和相互之間的互感進行了詳細的分析計算。The stator of aceg is connected to the grid and the three symmetrical excitation windings in the rotor are fed by converter. the magnitude and frequency and phase and phase sequence of excitation voltage can be controlled, so the magnitude and position of excitation mmf as well as the speed of rotor can be controlled. therefore, acegs have superior performances by contrast with conventional synchronous generators and induction generators, such as upstanding stability, power generation of variable speed constant frequency ( vscf ), adjusting active power and reactive power independently, and absorbing lag reactive power deeply
交流勵磁發電機的基本結構與繞線式異步電機相同，其定子側接電網，轉子上採用三相對稱分佈的勵磁繞組，由變頻器提供對稱交流電勵磁，且勵磁電壓的幅值大小、頻率、相位、相序都可根據要求加以控制，從而可以控制發電機勵磁磁場大小、相對于轉子的位置和電機的轉速，使得交流勵磁發電機具有良好的穩定性及轉速適應能力、獨立的有功與無功調節能力和較強的進相運行能力，性能超越傳統同步發電機和感應發電機，因而有著廣闊的應用前景。By the test of three - dimensional distribution, form character, rotating frequency and magnetic field intensity of rotating magnetic field, it showed that the magnetic field produced is a highly rotating magnetic field and mainly distribute on welding arc region, rotating frequency and magnetic intensity can be regulated through excitation power source
通過對產生磁場的空間分佈，形態特徵，以及旋轉頻率和場強大小的測試證明該磁場是一個高速旋轉的磁場空間，而且磁場主要集中分佈在焊接電弧區域內，磁場的旋轉頻率和場強大小都可以通過勵磁電源進行良好調節。The design of excitation power source based on principle of three phase step motor and pulse width modulation ( pwm ) technology, intelligent power model ( ipm ) is used for inverter switches, the output ac pulse used as excitation signals. the speed of rotation and magnetic intensity can be changed by regulate the exciting converted frequency and magnitude of exciting current. constant current is achieved by closed loop feed back
勵磁電源結合步進電機原理與脈寬調制技術，選用智能功率模塊ipm作為逆變開關器件，輸出交流脈沖勵磁信號，以調節勵磁轉換頻率和勵磁電流大小為手段，實現對磁場旋轉頻率和磁場強度大小的有效調節，並通過閉環反饋實現閉環恆流控制。Now the electrical power system is developing the big and gigantic scale dynamo on the base of saving the energy and reducing the wastage, but on the base of protecting environment, from now on the small and the middle water electric power will be developed, so the auto excitation regulator fit for the small electrical power has the great market potentialities
雖然目前電力系統從節能降耗的角度正積極發展大型機組、巨型機組，但從積極發展小型電站和增強環保意識的國策上看，今後小水電、中小型熱電廠將大量發展，因此對高性能的實用於小型機組的自動勵磁調節器具有巨大的市場潛力。The controller takes full advantage of the features of ti tms3201f240xa processor, such as high performance processing capabilities, plenty of peripherals on chip and high real time control. by the vital of these features the fast ac sampling, synchronic pulse, digital shift phase trigger pulse, can bus communication, pid control method and excitation limitations are realized. the pretreatment of the switch signals and the test of the shift phase trigger pulses are realized by using the complex programmable device ( cpld )
該勵磁控制器充分發揮了tms3201f240xadsp處理器的強大的數據運算能力、豐富的片內外設資源和較強實時控制能力，用單片系統結構實現了快速交流采樣，數字同步脈沖形成， can現場總線網路、以及pid控制演算法和各種勵磁限制等功能；用cpld器件實現了開關量抖動預處理和可控硅觸發脈沖遺漏的檢測，減輕了dsp處理器負擔，提高了勵磁控制器可靠性、抗干擾能力和控制能力；使用vc + + 6 . 0開發的基於windows操作系統的勵磁系統調試軟體，人機界面簡潔友好，使用操作靈活方便。Though electric system is developing large - scale machine shop in the view of energy saving and reducing waste, small - scale hydraulic power plant and micromidi thermal - electric plant will largely develop because of the national policy of developing small - scale power plant and strengthening environmental protection idea. therefore, the high performance automatic excitation regulator which is applied in small - scale machine shop will have great market potential
雖然目前電力系統從節能降耗的角度正積極發展大型機組、巨型機組，但從積極發展小型電站和增強環保意識的國策上看，今後小水電、中小型熱電廠將大量發展，因此對高性能的實用於小型機組的自動勵磁調節器具有巨大的市場潛力。分享友人