智能电网技术论文选题方向是什么

智能电网技术论文选题方向是什么

Abstract: With the development of power electronics technology， harmonic hazards has become increasingly serious， harmonic governance issues has been On the power source for electronic devices harmonic analysis and concluded that its harm and the corresponding harmonic management principles and comprehensive management， and management of a harmonic Key words: power electronics; harmonics; hazards; inhibition INTRODUCTION With the development of power electronics technology， power electronic devices to the extensive application of power system harmonics caused serious Various power electronic equipment in the transport， metallurgical， chemical and other industrial traffic the extensive application of harmonics in the grid problem is becoming increasingly serious， many low power factor of power electronic devices to the power grid additional burden on the quality of power and influence， Therefore， the power electronic devices harmonic pollution has become hinder the development of power electronics technology major Therefore， inhibition harmonic pollution and improve the power factor of power electronics technology has become a major issue in This paper focus on the key issues of power through electronic harmonic sources and the danger of understanding and analysis， and control of pollution from the relationship between the consideration of a comprehensive management approach on the final harmonic trends in the development of comprehensive management of the A power electronic device - the main source of harmonics Nonlinear load is a harmonic sources， which caused grid voltage distortion， in the voltage several times with the whole of the fundamental frequency Harmonic as the main source of power for various electronic devices mainly AC-DC converter (rectifiers， inverters， chopper， Drives)， as well as bidirectional thyristor controlled switching equipment， as well as internal power system Variable Flow equipment， such as HVDC rectifier valve and the valve， and other Below its harmonics generated an analysis of the 1 Rectifier As a DC power supply devices， rectifiers widely used in various Figure 1 (a) and Figure 1 (b) respectively for the single-phase and three-phase circuits In rectifier devices， AC power supply for the current rectangular wave， rectangular wave of the fundamental frequency for the current and Jibeiai several times for the high-frequency harmonic current waveform Obtained by Fourier series of rectangular wave of high harmonics In fundamental component I1 and the largest ratio of 1 / n， with the trigger control angle α， and the decrease of overlap angle μ for the increase of harmonic wave components have reduced In addition， the existing research results indicate that: Rectifier harmonic current operation mode of the size， has a direct impact， therefore consider adjusting the voltage and current rectifier， it is best to conduct overlap angle， as well as for harmonic phase pressure drop calculations， in order to determine safe and economical operation mode when the control close to 40 ° angle α， overlapping in the 8 ° angle μ about the circumstances are often the most serious state of harmonic， so to go through， as far as possible through the correct choice of regulating transformers tap in order to avoid Harmonic most serious point [1] 2 exchange regulator Exchange regulator used for lighting dimming and induction motor speed， and so Figure 2 (a) and 2 (b) respectively for the single-phase and three-phase circuits Exchange regulator and the harmonic frequency rectifier basically the Frequency Converter 3 Frequency converter is AC / AC Converter behalf of equipment， when used as motor speed control devices， which contain a change with the output frequency band edge， as for the frequency change， the more complicated harmonic Universal Converter 4 GM converter input circuits are all from the diode bridge rectifier and DC capacitor components in Figure 3 (a) shows， this circuit impedance input current waveform with the different big In the source impedance relatively small cases， the waveform for the lanky Zhaier high-waveform in Figure 3 (b) solid line shows the contrary， when the source impedance relatively large， its waveform for the dwarf and wide flat waveform Figure 3 (b) shown in dotted In addition to these typical converter will be a great number of harmonics， household appliances is not to be ignored harmonic Such as television sets， battery Although their individual capacity little， but because a lot of volume， they injected into the power supply system to the harmonic components can not be 2 harmonic hazards Harmonic hazards of the public network include: 1) make a public network components have additional harmonic loss and reduce the power generation， power transmission equipment efficiency， a large number of 3rd harmonic flow neutral line， the line will cause overheating or even a fire; 2) impact of the normal work of electrical equipment， in addition to additional wear and tear caused， and also enable a motor mechanical vibration， noise and over-voltage， transformer partial serious overheating， capacitors， cables and other equipment overheating， insulation aging， shortened life expectancy， resulting damage; 3) common cause in the local power grid and parallel resonant series resonance， so that harmonic magnification so that the aforementioned hazards greatly increase， or even lead to serious accidents; 4) will lead to protection and automatic device misoperation， and electrical measuring instrument measurement inaccurate; 5) to neighbouring interfere with communications systems， light， noise and lower the quality of communication， information led to heavy loss of the communications systems do not work 3 harmonic management principles To improve power quality， we must strengthen the management of the In restricted to the utility grid harmonic source harmonic current injection， will be allowed to limit the harmonic voltage within the scope of the First it is necessary to have systems in the harmonic sources and distribution， in the harmonic limit its scope in order to allow access， not curing the management measures must be taken to prevent the spread of For this reason the International Electrotechnical Commission (IEC) and the United States have recommended IEEE standards such as IEEE provisions of the current standard harmonic limits shown in Table China Power Grid with the actual level and the standard of other developed countries voltage distortion sine-rate provisions in table Table 1 harmonic current limits (IEEE519-1992 Provisions) Isc / IL H <11 11 35THD <> 0 Table 2 voltage distortion sine-rate limits Supply voltage / kV voltage distortion sine-rate limits / or 3856% 5 4 harmonic comprehensive management At present， China's electric power system harmonics on the management is "pollution first， treatment after" the passive situation，

你去网上找吧~看看（智能电网）这样的期刊论文吧就可以了~

你可以谢谢 电网安全啊 什么的cnki 万方都有 啊

智能电网新技术论文选题方向是什么

Abstract: With the development of power electronics technology， harmonic hazards has become increasingly serious， harmonic governance issues has been On the power source for electronic devices harmonic analysis and concluded that its harm and the corresponding harmonic management principles and comprehensive management， and management of a harmonic Key words: power electronics; harmonics; hazards; inhibition INTRODUCTION With the development of power electronics technology， power electronic devices to the extensive application of power system harmonics caused serious Various power electronic equipment in the transport， metallurgical， chemical and other industrial traffic the extensive application of harmonics in the grid problem is becoming increasingly serious， many low power factor of power electronic devices to the power grid additional burden on the quality of power and influence， Therefore， the power electronic devices harmonic pollution has become hinder the development of power electronics technology major Therefore， inhibition harmonic pollution and improve the power factor of power electronics technology has become a major issue in This paper focus on the key issues of power through electronic harmonic sources and the danger of understanding and analysis， and control of pollution from the relationship between the consideration of a comprehensive management approach on the final harmonic trends in the development of comprehensive management of the A power electronic device - the main source of harmonics Nonlinear load is a harmonic sources， which caused grid voltage distortion， in the voltage several times with the whole of the fundamental frequency Harmonic as the main source of power for various electronic devices mainly AC-DC converter (rectifiers， inverters， chopper， Drives)， as well as bidirectional thyristor controlled switching equipment， as well as internal power system Variable Flow equipment， such as HVDC rectifier valve and the valve， and other Below its harmonics generated an analysis of the 1 Rectifier As a DC power supply devices， rectifiers widely used in various Figure 1 (a) and Figure 1 (b) respectively for the single-phase and three-phase circuits In rectifier devices， AC power supply for the current rectangular wave， rectangular wave of the fundamental frequency for the current and Jibeiai several times for the high-frequency harmonic current waveform Obtained by Fourier series of rectangular wave of high harmonics In fundamental component I1 and the largest ratio of 1 / n， with the trigger control angle α， and the decrease of overlap angle μ for the increase of harmonic wave components have reduced In addition， the existing research results indicate that: Rectifier harmonic current operation mode of the size， has a direct impact， therefore consider adjusting the voltage and current rectifier， it is best to conduct overlap angle， as well as for harmonic phase pressure drop calculations， in order to determine safe and economical operation mode when the control close to 40 ° angle α， overlapping in the 8 ° angle μ about the circumstances are often the most serious state of harmonic， so to go through， as far as possible through the correct choice of regulating transformers tap in order to avoid Harmonic most serious point [1] 2 exchange regulator Exchange regulator used for lighting dimming and induction motor speed， and so Figure 2 (a) and 2 (b) respectively for the single-phase and three-phase circuits Exchange regulator and the harmonic frequency rectifier basically the Frequency Converter 3 Frequency converter is AC / AC Converter behalf of equipment， when used as motor speed control devices， which contain a change with the output frequency band edge， as for the frequency change， the more complicated harmonic Universal Converter 4 GM converter input circuits are all from the diode bridge rectifier and DC capacitor components in Figure 3 (a) shows， this circuit impedance input current waveform with the different big In the source impedance relatively small cases， the waveform for the lanky Zhaier high-waveform in Figure 3 (b) solid line shows the contrary， when the source impedance relatively large， its waveform for the dwarf and wide flat waveform Figure 3 (b) shown in dotted In addition to these typical converter will be a great number of harmonics， household appliances is not to be ignored harmonic Such as television sets， battery Although their individual capacity little， but because a lot of volume， they injected into the power supply system to the harmonic components can not be 2 harmonic hazards Harmonic hazards of the public network include: 1) make a public network components have additional harmonic loss and reduce the power generation， power transmission equipment efficiency， a large number of 3rd harmonic flow neutral line， the line will cause overheating or even a fire; 2) impact of the normal work of electrical equipment， in addition to additional wear and tear caused， and also enable a motor mechanical vibration， noise and over-voltage， transformer partial serious overheating， capacitors， cables and other equipment overheating， insulation aging， shortened life expectancy， resulting damage; 3) common cause in the local power grid and parallel resonant series resonance， so that harmonic magnification so that the aforementioned hazards greatly increase， or even lead to serious accidents; 4) will lead to protection and automatic device misoperation， and electrical measuring instrument measurement inaccurate; 5) to neighbouring interfere with communications systems， light， noise and lower the quality of communication， information led to heavy loss of the communications systems do not work 3 harmonic management principles To improve power quality， we must strengthen the management of the In restricted to the utility grid harmonic source harmonic current injection， will be allowed to limit the harmonic voltage within the scope of the First it is necessary to have systems in the harmonic sources and distribution， in the harmonic limit its scope in order to allow access， not curing the management measures must be taken to prevent the spread of For this reason the International Electrotechnical Commission (IEC) and the United States have recommended IEEE standards such as IEEE provisions of the current standard harmonic limits shown in Table China Power Grid with the actual level and the standard of other developed countries voltage distortion sine-rate provisions in table Table 1 harmonic current limits (IEEE519-1992 Provisions) Isc / IL H <11 11 35THD <> 0 Table 2 voltage distortion sine-rate limits Supply voltage / kV voltage distortion sine-rate limits / or 3856% 5 4 harmonic comprehensive management At present， China's electric power system harmonics on the management is "pollution first， treatment after" the passive situation，

一般电气工程 都靠向发输电方向，你可以看看无功补偿 输电线路方面的 不换位输电 直流输电 智能变电站 分布式发电 距离保护 微机保护等。

智能电网技术论文选题方向是什么意思

论文首先是选题，针对你的专业方向，题选好了大致框架就出来了，具体还是建议咨询专业老师吧，记得我表妹写论文是找欣月论文网的老师指导代 写的，希望对你有用

课题研究方向一般是指学生在校期间，或者相关科研工作者在申报撰写论文过程中需要明确的研究方向。课题研究方向应在所研究课题历史基础上提出自己独特或者有所创新的研究方向以丰富学科知识体系。论文题目由教师指定或由学生提出，经教师同意确定。均应是本专业学科发展或实践中提出的理论问题和实际问题。通过这一环节，应使学生受到有关科学研究选题，查阅、评述文献，制订研究方案，设计进行科学实验或社会调查，处理数据或整理调查结果，对结果进行分析、论证并得出结论，撰写论文等项初步训练。扩展资料：注意事项1、研究课题的基础工作——搜集资料。考生可以从查阅图书馆、资料室的资料，做实地调查研究、实验与观察等三个方面来搜集资料。搜集资料越具体、细致越好，最好把想要搜集资料的文献目录、详细计划都列出来。2、研究课题的重点工作——研究资料。考生要对所搜集到手的资料进行全面浏览，并对不同资料采用不同的阅读方法，如阅读、选读、研读。3、研究课题的核心工作――明确论点和选定材料。在研究资料的基础上，考生提出自己的观点和见解，根据选题，确立基本论点和分论点。参考资料来源：百度百科-毕业论文

研究方向和选题范围可以是和你专业方向有关的，如物流专业的话可以选择“库存管理中的零库存”“采购管理之供应商管理”作为论文的方向，研究方向和选题范围最好细化一些，不要选太大的题，太大太泛的题老师往往觉得不好，并且最好选跟自己本专业相关的题目，虽然你也可以选别的专业的题目。

智能电网技术论文选题方向是什么专业

你自己参阅下这些资料，61电力网 里 面 有 下 载 的。1、国家电网历年考试真题试卷（数套）2、国家电网招聘考试全套视频课程及讲义3、国家电网招聘考试面试技巧讲义及真题4、国家电网招聘考试会计类专业知识5、国家电网招聘考试电工类专业知识6、国家电网招聘考试计算机类专业知识

Abstract: With the development of power electronics technology， harmonic hazards has become increasingly serious， harmonic governance issues has been On the power source for electronic devices harmonic analysis and concluded that its harm and the corresponding harmonic management principles and comprehensive management， and management of a harmonic Key words: power electronics; harmonics; hazards; inhibition INTRODUCTION With the development of power electronics technology， power electronic devices to the extensive application of power system harmonics caused serious Various power electronic equipment in the transport， metallurgical， chemical and other industrial traffic the extensive application of harmonics in the grid problem is becoming increasingly serious， many low power factor of power electronic devices to the power grid additional burden on the quality of power and influence， Therefore， the power electronic devices harmonic pollution has become hinder the development of power electronics technology major Therefore， inhibition harmonic pollution and improve the power factor of power electronics technology has become a major issue in This paper focus on the key issues of power through electronic harmonic sources and the danger of understanding and analysis， and control of pollution from the relationship between the consideration of a comprehensive management approach on the final harmonic trends in the development of comprehensive management of the A power electronic device - the main source of harmonics Nonlinear load is a harmonic sources， which caused grid voltage distortion， in the voltage several times with the whole of the fundamental frequency Harmonic as the main source of power for various electronic devices mainly AC-DC converter (rectifiers， inverters， chopper， Drives)， as well as bidirectional thyristor controlled switching equipment， as well as internal power system Variable Flow equipment， such as HVDC rectifier valve and the valve， and other Below its harmonics generated an analysis of the 1 Rectifier As a DC power supply devices， rectifiers widely used in various Figure 1 (a) and Figure 1 (b) respectively for the single-phase and three-phase circuits In rectifier devices， AC power supply for the current rectangular wave， rectangular wave of the fundamental frequency for the current and Jibeiai several times for the high-frequency harmonic current waveform Obtained by Fourier series of rectangular wave of high harmonics In fundamental component I1 and the largest ratio of 1 / n， with the trigger control angle α， and the decrease of overlap angle μ for the increase of harmonic wave components have reduced In addition， the existing research results indicate that: Rectifier harmonic current operation mode of the size， has a direct impact， therefore consider adjusting the voltage and current rectifier， it is best to conduct overlap angle， as well as for harmonic phase pressure drop calculations， in order to determine safe and economical operation mode when the control close to 40 ° angle α， overlapping in the 8 ° angle μ about the circumstances are often the most serious state of harmonic， so to go through， as far as possible through the correct choice of regulating transformers tap in order to avoid Harmonic most serious point [1] 2 exchange regulator Exchange regulator used for lighting dimming and induction motor speed， and so Figure 2 (a) and 2 (b) respectively for the single-phase and three-phase circuits Exchange regulator and the harmonic frequency rectifier basically the Frequency Converter 3 Frequency converter is AC / AC Converter behalf of equipment， when used as motor speed control devices， which contain a change with the output frequency band edge， as for the frequency change， the more complicated harmonic Universal Converter 4 GM converter input circuits are all from the diode bridge rectifier and DC capacitor components in Figure 3 (a) shows， this circuit impedance input current waveform with the different big In the source impedance relatively small cases， the waveform for the lanky Zhaier high-waveform in Figure 3 (b) solid line shows the contrary， when the source impedance relatively large， its waveform for the dwarf and wide flat waveform Figure 3 (b) shown in dotted In addition to these typical converter will be a great number of harmonics， household appliances is not to be ignored harmonic Such as television sets， battery Although their individual capacity little， but because a lot of volume， they injected into the power supply system to the harmonic components can not be 2 harmonic hazards Harmonic hazards of the public network include: 1) make a public network components have additional harmonic loss and reduce the power generation， power transmission equipment efficiency， a large number of 3rd harmonic flow neutral line， the line will cause overheating or even a fire; 2) impact of the normal work of electrical equipment， in addition to additional wear and tear caused， and also enable a motor mechanical vibration， noise and over-voltage， transformer partial serious overheating， capacitors， cables and other equipment overheating， insulation aging， shortened life expectancy， resulting damage; 3) common cause in the local power grid and parallel resonant series resonance， so that harmonic magnification so that the aforementioned hazards greatly increase， or even lead to serious accidents; 4) will lead to protection and automatic device misoperation， and electrical measuring instrument measurement inaccurate; 5) to neighbouring interfere with communications systems， light， noise and lower the quality of communication， information led to heavy loss of the communications systems do not work 3 harmonic management principles To improve power quality， we must strengthen the management of the In restricted to the utility grid harmonic source harmonic current injection， will be allowed to limit the harmonic voltage within the scope of the First it is necessary to have systems in the harmonic sources and distribution， in the harmonic limit its scope in order to allow access， not curing the management measures must be taken to prevent the spread of For this reason the International Electrotechnical Commission (IEC) and the United States have recommended IEEE standards such as IEEE provisions of the current standard harmonic limits shown in Table China Power Grid with the actual level and the standard of other developed countries voltage distortion sine-rate provisions in table Table 1 harmonic current limits (IEEE519-1992 Provisions) Isc / IL H <11 11 35THD <> 0 Table 2 voltage distortion sine-rate limits Supply voltage / kV voltage distortion sine-rate limits / or 3856% 5 4 harmonic comprehensive management At present， China's electric power system harmonics on the management is "pollution first， treatment after" the passive situation，

我只知道《智能电网》这本是国外的中文OA期刊

老铁你这个属于收费服务了。

智能电网与新能源发电技术论文选题方向是什么

选后者吧。仅供参考，择业最主要的是兴趣。

个人觉得搞高压电比较有前途

建议你选电力系统分析、运行与控制。理由：1、该方向范围广、适应性很强，工作好找，可以进研究机构，也可以去供电局挣大钱；2、这个专业和你本科联系较大，比较好入门，也容易出成果；3、一般学校的这个研究方向都比较强一些，老师也比较多。另外我本人就是电力大学毕业的博士，有亲身体会

一般来说你列举的专业之间找工作时差别不大，如果导师是做电力电子的，最好在电能质量方面着重考虑一下，现在国家正在发展新能源和节能方面，还是比较有前途的。另外，高压直流输电和柔性交流输电有相同点就是应用电力电子技术，但高压侧重输电网（省公司/电研院），柔性交流侧重配电系统（市公司/设计院）。