| 1. | The substation voltage and reactive power control approach are studied and adopted at large in the meantime 同时,对有载调压变压器和电容器组的控制方法,也得到广泛的研究和应用。 |
| 2. | In addition , the instantaneous reactive power theory and it ' s application to reactive power control and detection are introduced 另外,论文还介绍了瞬时无功功率理论及其在无功控制和无功检测方面的应用。 |
| 3. | The paper workout the calculating software for voltage and reactive power control substation at the basis of fuzzy neural network . , and finish emulation model calculating process 在进行研究的同时,还编制了利用模糊神经网络的变电站电压、无功控制计算软件,并进行了仿真计算。 |
| 4. | Based on the strategy the automatic voltage and reactive power control device was developed . the device is controlled by microcomputer and can adjust the ratio of transformer and switch the capacitor automatically according to operating condition 在此基础上,研制成功了变电所电压无功自动控制装置,装置以微处理器为控制核心,可根据实测的母线电压和负荷功率因数,自动进行主变分接头调整和补偿电容器投切。 |
| 5. | In power system , it can effectively improve the voltage and decrease the real power loss that coordinated control the transformer tap and the compensatory capacitor of the region network . the voltage and reactive power control makes the running of the systems more safe and stable and economical 在电力系统中,对地区电网中的有载调压变压器和补偿电容器进行协调控制,能够有效提高电压水平、降低有功功率损耗,对系统的安全稳定经济运行具有重要意义。 |
| 6. | Aimed to the above mentioned defects of reactive power compensation devices being used widely up to now and no value of practical application , the article described the principle of compensation reactive power controlled by intellectual static auto - compensation system which is of every phrase active power compensation and three phrase balance compensation 针对这些实用性不强的无功功率补偿装置,本文提出了采用静止式无功功率自动补偿分相控制的系统总体方案,使补偿响应速度和补偿精度大为提高。 |
| 7. | Firstly , the thesis briefly reviews the history of voltage and reactive power control technology , focusing on the defects of the equipment in use . then , with the theoretical analysis and the discussion on voltage and the characteristic of power system as well as the basic principle of voltage and reactive power control , the thesis makes a research on the character of voltage and reactive power control and interprets the controlling regularity of substation . in addition , with the consideration of the changes of transformer tips and the combined influence of capacity groups and reactive power and voltage , the thesis makes adjustment suggestion to the different operating - zones of voltage and reactive power 本文从降低网损和提高变电站自动化水平着眼,对变电站电压无功控制应用方面的问题进行了研究,本文首先简要回顾电压无功控制的发展概况,着重指出了现有电压无功控制装置的缺陷;通过理论分析,在讨论电力系统电压、无功调节特点以及电压无功总体控制原则的基础上讨论了变电站电压、无功控制特性以及控制原理,给出了变电站电压无功的控制规律;考虑了变压器分接头的变化及电容器组的投切对无功和电压的综合影响,针对电压、无功的各种运行控制区域给出了相应调节策略。 |
| 8. | This paper analyses the shortages of several calculate methods for voltage and reactive power control and several control approach applied in fact in substation nowadays , and put forward one new approach for the control of voltage and reactive power in substation by at the basis of fuzzy neural network theory ( fnn ) 本论文对分析了目前电压无功优化控制的计算方法和在实际中应用的变电站电压、无功的几种控制方法存在的不足之处,并提出一种基于模糊神经网络的变电站的电压、无功控制的新方法。 |
| 9. | Detaildiscussion and partition of it is given according to the research contellts , methods , tfor spanand objective function etc . the method applied here , genetic algorithin ( ga ) for reactivepower planning problem and interior point method ( ipm ) for quasi real time voltage / reactivepower control are separate surnmarized fully and comprehensively hence , two aspects ofreactive power operating optimization , i . e . optimal reactive power compensation planning andquasi - real time voltage / reactive power control are studied in detail in this thesis withintelligent method , such as fully mathematic and expert system etc . , integrated 本文从无功优化问题的研究内容、研究方法、时间跨度和目标函数等方面进行了详细的探讨和划分。在对本文采用的无功规划优化的研究方法?遗传算法和无功/电压控制的研究方法?原-对偶内点法进行综述的基础上,提出根据电力系统的特点、结合模糊数学和专家系统等智能方法对无功运行优化中的规划优化和无功/电压控制两类问题进行理论和应用研究。 |
| 10. | Based on the actual background of jinhua electric power and the application level of business intelligence ( bi ) technology , the construction objective supplementary decision system of operational analysis in jinhua electric power is determined . the useful data acquired by etl tools will be concentrated in data warehouse or data markets . decision proposal will be made on electric equipments maintenance , reactive power control , electric line operational analysis , equipment defect prevention and control and electric power fault diagnosis by adopting dw , olap and dm technologies 针对金华电网运行生产的实际情况,结合当今业务智能技术( bi )的应用水平,金华电网运行分析辅助决策系统的建设目标是:在全局数据中心集中存储和管理经过清洗、抽取后各种有用信息,并在数据集中的基础上,采用数据仓库( dw ) 、联机事务分析( olap )和数据挖掘( dm )等技术对大量的数据和信息进行分析和挖掘,提出有益于电力设备检修、电压无功优化、线路运行分析、缺陷预控和故障诊断等的决策建议。 |