In the modern power system , acute fluctuation of load lead to great difference of wave crest and trough , abundance non - linear load make severe aberrance of current and voltage wave . these factors make remarkable increase of error of energy metering and unrational billing 现代电力系统中,负荷波动剧烈使负荷峰谷差值很大,大量的非线性负荷使电流、电压波形畸变严重,这些因素使电能计量误差显著增大,并使计费不合理。
Based on considering the construction method of vacuum combined with surcharge preloading and considering multilevel preloading , this paper set up settlement prediction model in accord with process of actual preloading , and ascertain formulation of settlement considering linear loading ( 1 )根据真空堆载联合预压施工方法在考虑多级加载的基础上,建立了与实际加载过程相符的一维沉降预测模型并推求了线性加载下的沉降计算公式。
At the same time , the paper deduces the essential character of the model , gets the solution of model parameters and discusses the problems during engineering application of the analysis model . ( 3 ) , one dimensional consolidation theory of impeded boundary by linear loading is deduced for layered soil , which expands the consolidation theory of impeded boundary . afterwards , the paper discusses the application of the model for settlement data of layered soil 分析了沉降数据模型的基本性质,得出了模型参数的解法,探讨了沉降数据分析模型在工程应用中存在的常见问题; ( 3 )针对分层地基,推导了等速加荷条件下半透水边界一维固结理论解,完善了半透水边界固结理论,并讨论了沉降数据分析模型在分层沉降数据分析中的应用问题; ( 4 )结合工程实例,阐述了沉降数据分析模型的应用。
With the broad application of the electrical and electronic technology in the industry branches and the power apparatuses , the number of non - linear loads is much more and more , and the capacity of them is biggish , so a mass of harmonic is injected into the power system , which produces the waves of voltage and current in power system to be aberrant seriously 随着电力电子技术在各工业部门和用电设备上的广泛应用,非线性负荷数量越来越多,容量也越来越大,谐波大量注入电网,使电力系统电压、电流波形发生严重的畸变。由于大多数仪器、仪表是针对工频正弦波设计的,因而造成指示数据不正确。
It is deduced theoretically that non - linear load , rather than linear load , generates harmonics , which translates part of fundamental reactive power absorbed from power system into harmonic reactive power injected into the power system . the rationality of electric power measurement for linear and non - linear load is studied , and as a result some rational advices are addressed here 从理论上推导了线性负载不产生谐波,非线性负载将吸收的部分基波功率转化为谐波功率注入系统,并对电能计量准确性和合理性做了一些探讨,最后提了一些无功的收费意见。
linear: adj. 1.线的,直线的。 2.长度的。 3.【数学】 ...load: n. 1.装载,担子;负担;工作(负荷)量。 2.(车船 ...linear track load: 每延米轨道压力non-linear load: 非线性负载linear load field effect transistor: 线性负载场效应晶体管be linear with: 与...成线性关系linear: adj. 1.线的,直线的。 2.长度的。 3.【数学】一次的,线性的。 4.【动、植】线状的;细长的。 5.由线条组成的,以线条为主的,强调线条的。 linear amplification 直线放大。 a linear equation 一次方程式。 a linear leaf 线形叶。 linear arts 线条艺术。 linear a: 线形文字a; 线性文字ano-linear: 非线性的linear linear: 线性的a load of: 大量, 许多load: n. 1.装载,担子;负担;工作(负荷)量。 2.(车船等的)装载量;一驮,一车,一飞机。 3.【电、机】(机械等的)负载(量),负荷(量);发电量。 4.充填,装药,装弹。 5.〔pl.〕许多,大量,一大堆。 6.〔俚语〕使人喝醉的量。 7.【生物学】(不利)负荷〔指有害基因的存在〕。 a load of care 精神负担。 a load of debt 债务的负担。 be ever ready to bear a heavy load on one's shoulders 勇于挑重担。 a cart load of furniture 一货车家具。 a load of hay 一堆干草。 We have to make three loads of the cargo. 我们得把货物分成三批装运。 genetic load【生物学】遗传负荷〔指有害基因的存在〕。 the breaking load最大载荷。 the capacity load满载。 the dead [static] load恒载,静(荷)载,自重。 the live [moving, mobile] load活负载,动荷载。 the peak load最大负载,峰负载 the permissible load容许负载。 the rated load额定载荷。 the safe load安全负载。 the working load资用负载。 loads of friends 大批朋友。 loads of time 充裕的时间。 a teaching load of twenty hours a week 每星期二十小时的教学任务。 be a load off one's mind 如释负重。 get a load of 〔美俚〕仔细听;注意看。 have a load on 〔美俚〕喝醉。take a load off one's feet 〔美俚〕坐下休息。 take a load off sb.'s mind 解除某人思想负担,使某人放心。 vt. 1.把货装到(船、车等)上;装(货)。 2.装满,使负担。 3.把子弹装到(枪里);把胶卷装入(照相机)。 4.用铅加重(骰子、手杖等);用低劣物质等搀入。 5.(人寿保险)加收额外保险费。 load cargo into the hold 把货装进船舱。 a heart loaded with care 心事重重。 a table loaded with delicacies 摆满佳肴的桌子。 air loaded with carbon 充满碳气的空气。 load one's stomach with food 吃得太多。 load sb. with praise 极力称赞某人。load a camera with film 给照相机装胶卷。 This wine has been loaded. 这种酒是搀了水的。 vi. 1.(在枪里)装弹药;装料。 2.(车、船等)装货;上船,上车。 Load! 【军事】装子弹! The ship is loading for London. 这船正装货运往伦敦。 They loaded into the boat. 他们上船了。 be loaded down with 〔美国〕 = be loaded up with 装着…,存有(某种股票等)。 load down 装载甚重。 loaded for bear 〔俚语〕 1. 有充分准备。 2. 生气;准备打架。 load the dice against sb. 对某人使用加重骰子;使用不正当手段占人便宜。 load on: 加负荷load with: 装载某物no load: 空载; 免佣金的股票; 无荷载; 无载的no-load: adj. (出售股票时)免付佣金的。 on load: 带负载的; 有载的; 在荷载下to load: 装胶卷; 装入,寄存,写入,加载load-to-load: 逐批结算linear a and linear b: 线形文字甲和乙linear scan, linear scanning: 线扫查a linear design: 线条图案a linear leaf: 长叶片acceleration; linear: 直线加速度accelerator linear: 直线加速器