諧波檢波器 的英文怎麼說
中文拼音 [xiébōjiǎnbōqì]
諧波檢波器
英文
harmonic detector- 諧 : Ⅰ形容詞1 (和諧) in harmony; in accord; in tune 2 (詼諧) humorous Ⅱ動詞(商量好; 辦妥) come t...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 檢 : Ⅰ動詞1 (查) check up; inspect; examine 2 (約束; 檢點) restrain oneself; be careful in one s c...
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
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Based on the geophone vibration formula, this paper presents the affective factors to the seismic data from high resolution geophone arrays and its main property specifications, such as natural frequency, damping coefficient, sensitivity, harmonic distortion, and alias
為此,從檢波器的振動方程出發,對高解析度地震檢波器性能指標(如自頻率、阻尼系數、靈敏度、諧波失真、假頻等)以及檢波器組合的連接方式對地震資料品質的影響進行了分析。In the part of modulation and demodulation, we analyzed the principles of harmonic mixer, detectors, power dividers / combiners and branch - line couplers
對調制/解調器射頻電路部分,包括亞諧波混頻器、檢波器、功率分配/合成器和分支線耦合器基本原理進行了分析。This paper describes mainly system functions, measuring methods, circuit design, software program and errors analysis of a new type of measuring instrument. this instrument can measure and monitor electric parameters in single - phase circuits, three - phase ( three - wire or four - wire ) circuits. this system can be applied to electric devices and power plants, transformer substations with harmonic pollution. it can measure current, voltage, power, energy, frequence, power factor etc. it also can detect load quality, phase sequence, alarm, display and print results, as well as detect and dispose negative power
該儀器適用於含有諧波污染情況下的機電設備現場、發電廠、供電局、企業變電所現場,可用來測量電流、電壓、有功功率、無功功率、視在功率、有功電能、無功電能、視在電能以及頻率和功率因數等電參數,並具有負載性質(感性、容性)判別,正、逆相序判別指示功能;超限報警功能;列印記錄功能和負功檢測及處理功能。Secondly the detection precision is only related to the synchronization phase but not to the amplitude of the mainline voltage because that it uses the optimized pulses synchronous with the mainline voltage as modulation signals. thirdly it decreases the requirement of the input low pass filter and eliminates the error resulting from the direct component and even harmonics of load current. the most significant merit is that it can eliminate the effect of a few low order odd harmonics and the detecting circuit is easy to be implemented
模擬和實驗結果表明該方法的主要優點有:不需使用乘法器進行信號調制,調制信號採用與電網電壓同步的優化特定脈沖,其檢測精度只與同步相位有關,而與電網電壓幅值無關;降低了對輸入低通濾波器的通頻帶要求,直流和偶次諧波分量對檢測精度沒有影響;突出的優點是可以消除有限個低奇次諧波對檢測結果的影響。Then the paper analyzes control system of hybrid active power filter, the way of harmonic detecting and the principle of control system, digital low pass filter and the generation of pwm, on the base of which the paper designs a new parallel hybrid active power filter which is controlled by tms320lf2407, and detailedly introduces drive circuit of pwm, sampling circuit of current, voltage adjustment and protection circuit, communication circuit, liquid crystal display circuit
分析了混合型有源濾波器的控制系統、諧波檢測方法及控制原理、數字低通濾波器和pwm信號的產生,在此基礎上設計了一種基於tms320lf2407為控制核心的並聯混合型有源電力濾波器硬體原理圖。並對pwm驅動電路、電流采樣電路、電壓調整、按鍵輸入和保護電路、通信模塊、液晶顯示模塊進行了較詳細的分析說明。In order to ensure the real - time monitor this design choose special dsp chip and high - efficiency a / d transfer chip, the former ensure the time is enough to complete the calculation. tests proved that this equipment can satisfy the requirement of international standards about harmonic detection
論文提出了基於dsp的電能質量在線檢測最小測量系統的設計方案。論證了用於電能質量檢測系統的a / d轉換器的位數應大於等於16位,才有可能使各次諧波的檢測精度達到小於1 %的相對誤差。The active power filter can compensate the harmonic of variety in magnitude and frequency. so we adopt active power filter to restrain harmonic of electric arc furnace, and a new method of detection adaptive electric arc furnace is presented, the result of simulation indicate that the method is proper
而有源濾波器能對大小和頻率都變化的諧波進行實時補償,所以本文研究了將有源濾波器用於電弧爐系統諧波抑制的方法,並提山了一種針對電弧爐系統的諧波檢測方法。Based on the concept of space vector, an open loop detecting method for the fundamental negative and positive sequence components as well as the harmonic components is developed, which combining the conventional detecting method based on filters and the concept of space vector. this method can overcome the defaults of the conventional detecting method, and can meet the requirement of the asymmetrical control of hvdc - vsc
基於空間矢量的概念,提出了一種開環的基波正序分量、基波負序分量及諧波分量的實時檢測方法,這種方法可以看作是空間矢量的概念與傳統的基於濾波器的諧波檢測方法的結合,它能夠克服原有的基於濾波器的檢測方法的不足,可用於hvdc - vsc的不對稱運行控制。Three - phase four - wire apf with one - cycle control need not sense the three phase load currents or the three phase voltages, need not calculate the harmonics and reactive current components, as well as the use of any multipliers
單周控制三相四線制有源電力濾波器不需要檢測三相負載電流和三相電源電壓,不需要檢測諧波和無功電流,也不需要使用任何乘法器。The shunt active power filter which uses the i p ? iqmethod and the hysteresis - based current control strategy has been simulated, and analyze the inductor and the cut - off frequency which affect the performance of shunt active power filters
Iq諧波電流檢測和電流滯環跟蹤控制技術的並聯型有源電力濾波器進行了模擬研究,重點分析了影響有源電力濾波器補償效果的濾波電感和采樣電路截止頻率。Thus, it is difficult to find the voltage reference for the harmonic analysis. since acem are always operated near to the synchronous speed, the frequency of the excited voltage is very low, even to zero. therefore, this is the power harmonic suppression study of a complicated power supply system, in which the about harmonic general theories and methods are all inapplicable
現代交流勵磁電機( acem )採用電力電子變流器作為勵磁裝置,其勵磁電壓諧波含量豐富,難于獲得諧波分析所需的電壓基準,同時交流勵磁電機經常工作在同步轉速附近,致使勵磁電壓頻率極低甚至為直流,通常的諧波檢測方法和理論都無法適用,因而這是一種目前尚未深入探討過的復雜供用電系統電力諧波抑制問題的研究。Apf can achieve dynamic compensation for harmonics and reactive current, and the compensation performance is not affected by the impedance of power grid, it has advantages as follows, fast response, high controllability and adaptability, etc. brief illuminations of advantages and disadvantages are performed to various harmful current detecting methods and control techniques
它可實現對諧波和無功的動態補償,其補償特性不受系統阻抗的影響,具有響應快、可控性高、自適應性強等優點。本文對有源電力濾波器的各種諧波電流檢測法及控制方法進行了簡要的優缺點說明。Apf can achieve dynamic compensation for harmonics and reactive current, and the compensate performance is not affected by the impedance of the electric network, it has advantages as follows, fast response, high controllability and adaptability, etc. analysis is performed to existing main circuit topology, harmful current detecting method and current tracking control of apf in this paper
有源電力濾波器可實現對諧波和無功的動態補償,其補償特性不受系統阻抗的影響,具有響應快、可控性高、自適應性強等優點。本文對現有的有源電力濾波器的各種主電路拓撲、畸變電流檢測和電流跟蹤控制方法進行了分析。At last the components of the system are modeled and simulated with matlab software. the simulation results indicate that the combined system can reduce the capacity of apf effectively, detecting the harmonic current effectively, compensating harmonic current effectively
結果表明,對單位容量的諧波源,採用與可變參數lc濾波器混合使用的並聯型有源電力濾波器系統,能夠有效地減少有源濾波器的容量,有效地檢測出高次諧波分量,並進行諧波補償,使系統的電流波形基本保持正弦。With the upgrade of the micro - controller, microprocessor and digital signal processor ( dsp ), the examine and control system of active power filter ( apf ), which has been developed since 1980 ’ s and is a better equipment for harmonic elimination, inclines to digital
有源電力濾波器( apf )是80年代以來興起的性能較好的諧波抑制裝置,代表了諧波抑制裝置的發展方向。近年來,隨著微控制器、微處理器和數字信號處理器( dsp )的不斷升級, apf向著數字化檢測與控制方面發展。With the development of electric - electronic technology, microelectronic technique and modern control theory, and with studying harmonic suppression and reactive power compensation using it, the active power filter has improved greatly. the methods and the circuit of detecting current have already improved greatly
隨著電力電子技術、微電子技術和現代控制理論的發展,及其在諧波抑制和無功功率補償研究中的應用,有源電力濾波器得到了飛速的發展,同時其電流檢測方法以及檢測電路也取得了長足的進步。The theoretical and experiment results shows that the digital examine and control system which adopts vss lms algorithm can allow the apf to track changes in the system as well as produce a small steady state error, therefore ensures the speed and precision of apf. also erase / program flash on system and bootload are achieved
實驗結果表明,採用變步長lms演算法的數字化檢測與控制系統同時保證了諧波檢測的速度與精度,在負載變化時有更好的跟蹤能力,滿足有源電力濾波器對諧波檢測的要求。First of all, by establishing the observation model of complex harmonic signal and complex linear chirp signal respectively under the co - jamming of additive and multiply noise, the paper constructed cyclic moment detectors of different orders, deduced snr expression of the detector through theoretic analysis, discussed the relation of detector performance and noise statistical characteristic. the curve of detection performance is obtained through monte carlo simulation test, proving the related conclusion derived
首先,論文分別以加性和乘性噪聲聯合干擾下的復諧波信號和復線性調頻信號為觀測模型,構造了基於不同階次的循環矩檢測統計量,從理論上推導出了檢測器的信噪比表達式,分析了檢測器性能與噪聲統計特性的關系,通過monte - carlo模擬試驗得到了檢測性能的曲線,驗證了推導的有關結論。The simulation about the harmonic detection of a three - phase cycloconverter - fed a. c. excited generator verified the effectiveness of the method
針對三相交-交變頻器交流勵磁發電系統的諧波檢測進行的模擬研究,驗證了本文方法的有效性。A methane gas sensor with optic fiber based on frequency harmonic detection technique
一種基於諧波檢測技術的光纖甲烷氣體傳感器分享友人