关于电网质量、试验及验收的标准

因为有源电力谐波滤波器技术相对较新,在国内应用尚不普及,针对有源电力谐波滤波器我国尚无专门的国家标准和行业标准,但从电力质量及其它相关标准中,可以参照使用,下面标准可用作有源电力谐波滤波器的参照标准：     

新版谐波电流标准对真空吸尘器测试要求的比较分析

根据新版 IEC 谐波电流发射标准中若干条款的技术细则,以真空吸尘器谐波电流发射测量为例,对标准中控制触发角的要求和实际应用进行了详细分析,给出了建议的谐波电流检测方法。     

通信线路工程设计变更标准规范探讨

本文分析了通信线路工程设计变更的特点,指出了制定通信线路工程设计变更规范的要点.在定义与预备费率相关联的相对值标准和沿用老版规范中绝对值标准的基础上,提出了针对路由长度变更标准的模型.并引入赢得值、排列图等方法,细化了设计变更流程,用于进一步加强通信线路工程规范化管理.     

通信电源系统的谐波及其治理方法

从通信电源系统谐波及其污染的工程实际问题出发，分析了谐波对通信系统的危害， 论述了通信系统谐波干扰的评估标准，并从谐波综合治理的思路出发，提出了相应的 谐波治理方法和研究建议。     

电视机谐波电流解决应用分析

介绍了电视机的谐波电流标准要求,通过对解决电视机谐波电流问题的实际过程进行深入的研究,分析了增加谐波电流标准要求后对电视机开发和生产造成的影响,介绍了克服这些困难的经验。     

电视机谐波电流解决案例剖析

介绍了电视机应符合的谐波电流标准要求,通过对本公司解决电视机谐波电流问题的实际过程进行深入的研究,分析了增加谐波电流标准要求后对电视机开发和生产造成的困难,介绍了我们克服这些困难的经验.     

通信电源系统的谐波及其治理方法

从通信电源系统谐波及其污染的工程实际问题出发，分析了谐波对通信系统的危害，论述了通信系统谐波干扰的评估标准，并从谐波综合治理的思路出发，提出了相应的谐波治理方法和研究建议。     

通信线路工程设计变更标规探讨

本文围绕2016版《通信线路工程验收规范》有关设计变更的表述,分析了通信线路工程设计变更的特点,指出了制定通信线路工程设计变更规范的要点。在定义与预备费率相关联的相对值标准和沿用老版规范中绝对值标准的基础上,提出了针对于路由长度变更标准的模型。并引入赢得值、排列图等方法,细化了设计变更流程,用于进一步加强通信线路工程规范化管理。     

工业与建筑物电气系统内谐波标准分析

IEC没有单独的谐波标准而是经它作为电网中的低频传导骚扰现象之一和电气子产品的EMC性能成为一整体来讨论，是一个系统工程。本文按上述观点分别介绍了IEC标准中有关谐波的部分，并将它和国家标准进行了对比，指出了GB谐波标准之不完善处，供大家讨论。     

移相式谐波失真度测量

采用移相的原理,将无谐波失真的标准信号移相后与被测的失真信号相叠加,同时使标准信号的相位与被测的失真信号中的基波的相位相反,而两者的幅度值相等,结果将基波成份抵消而保留了谐波成份,由此而测出谐波失真度。     

Influence of the Electrical Vehicle Charging on the Grid Harmonic

This paper described the impact of the electrical vehicle (EV) charging on the grid harmonic. In view of the randomness of the EV charging process, the harmonic admittance matrix method and superposition method were used to build the single and multiple EVs charging simulation model. By using Matlab as a simulation tool, we analyzed harmonic currents of single and multiple EVs chargers. The results show that the harmonic ratio is beyond the scope of the national harmonic standard. Finally a parallel hybrid active filter (PHAPF) was introduced for governance of harmonic. The experimental results show that net side harmonic currents are significantly reduced by using the PHAPF and meet the national standard GB/Z17625.6-2003 regulations limit.     

低压电网的谐波与治理

本文介绍了对谐波的特殊性,各种谐波源设备产生的谐波电流大小的估算,低压网络中谐波电流（电压也一样）的合成,谐波的危害,工业（包括实业等）私用电网的谐波电压标准,谐波治理措施（包括对谐波设备本身的,对配电变压器的,以及不得不采用滤波器等）,无源和有源滤波器的工作原理和优缺点比较,工程设计如何应对谐波的考虑,以及谐波对中性线电流大小的影响。均作了介绍,限于篇幅,不可能详细。欲知其详,请见《电气工程应用》2005年全年4期杂志。     

强激光作用下等离子体尾波引起奇次谐波辐射的理论分析

对库仑规范的激光与等离子体相互作用的耦合方程进行了准静态处理,同时利用处理后的方程从理论上完整规范地求出了相互作用的非线性辐射谐波分量。讨论分析了其谐波成分中只有奇次分量的原因和影响因素。通过给定参数的计算,作出了辐射谐波的能谱图,并发现相邻谐波辐射相差几百倍。     

Linear Current Control Scheme With Series Resonant Harmonic Compensator for Single-Phase Grid-Connected Photovoltaic Inverters

This paper deals with an important aspect in the operation of single-phase grid-connected photovoltaic inverters, i.e., injecting low harmonic current into the electrical grid. Specifically, we propose a linear current control scheme with a resonant harmonic compensator connected in series with a tracking regulator (the standard harmonic compensator location is in parallel with the tracking regulator). The series connection provides an efficient attenuation of the grid voltage background distortion, an accurate synchronization with the grid voltage, and a low computational time in relation to the standard control scheme. Experimental results from a digital signal processor-based laboratory prototype validate the features of the proposed control scheme.     

基于Vicor HAM模块的PFC电源设计

为了提高用电设备对电能的利用效率,减少其对电网的谐波污染和电磁干扰,同时满足GJB151A-97标准中CE101项目对用电设备的电源谐波要求,研制了一台600 W的功率因数调整电源,即PFC电源。该电源采用美国Vicor公司的高增压谐波衰减（HAM）模块和V375系列DCDC模块,其中HAM模块用于控制电源输入电流,使其相位与输入电压相位保持一致,以减少谐波的产生,DCDC模块将HAM模块输出的直流高压转换为所需的直流电压输。经测试,该PFC电源达到了GJB151A-97中CE101项目对电源谐波抑制的标     

电子镇流器无源功率因数校正的实现方法

在电子镇流器及节能灯中,无源功率因数校正电路具有成本低,可靠性好,调试容易等优点,但往往在谐波含量问题上迭不到电磁兼容标准的要求。下面对无源功率因数校正的几种实现方法进行了对比分析,并延深出了一种新的实现方法,可使无源功率因数校正电路的谐波含量降到15％以下,功率因数不小于0．96,满足电磁兼容标准要求,在实际应用中可供借鉴。     

变频器应用对电动机与电网的不良影响用对策

变频器对电动机的不良影响主要根据IEC标准及个人理解编写,IEC标准认为二者之间的协调是个复杂的问题,有关技术尚在发展中,目前尚难以作出定量规定和形成正式的标准,因此处理问题,首选应按照厂家说明的相关规定。若无规定,特别是变频器和电动机由二个厂制造时,IEC标准则提出许多意见供应用者研究与处理。至于变频器对电网的影响与对策,《电气工程应用》过去有许多文章,本文只介绍如何应用谐波标准。     

Line harmonics reduction in high-power systems using square-waveinverters-based dominant harmonic active filter

This paper presents a dominant harmonic active filter (DHAF) scheme using small-rated square-wave inverters for supply line harmonic current reduction for high-power nonlinear loads in the range of 10 MW and above to meet IEEE 519 harmonic standard. The active filter inverters are connected in series with the fifth and seventh L-C tuned filters, respectively. A synchronous reference frame-based controller which achieves harmonic isolation for the dominant fifth and seventh harmonic load currents in the presence of supply voltage harmonic distortion is presented. Impact of mistuned passive filters on the operation and rating of the square-wave active filter inverters is examined. Simulation results validate the proposed harmonic isolation controller under mistuned fifth and seventh L-C tuned filter conditions and supply voltage harmonic distortion. The proposed scheme is general and applicable for high-power 6- or 12-pulse rectifier loads. The use of small-rated square-wave inverters (approximately 2% of load kilovoltampere rating) increases the cost effectiveness of the DHAF system for high-power applications     

An integrated technique for eliminating harmonics of multilevel inverter with unequal DC sources

For improving the alteration performance of multilevel inverter, selective harmonics elimination methods play a significant role. In this document, an incorporated method is suggested for removing the harmonics of multilevel inverter with uneven DC sources. The suggested incorporated method is the mixture of fuzzy logic intelligent system and particle swarm optimisation (PSO) algorithm. For generating the training information set in terms of switching angle, Fuzzy is one of the synthetic intelligent methods which apply harmonic voltage and harmonic distortion. PSO is one of the swarm intelligence-based optimisation algorithms which is employed for choosing optimal switching angle from the training data set. The suggested hybrid method is executed in MATLAB/Simulink platform. At dissimilar unequal input voltage levels, the performance of the suggested method is checked by cascade H-bridge multilevel inverter. The production of the suggested method is compared with the theoretical effects.