统一电能质量控制器中串联变流器的研究
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摘要
随着配电系统中各类非线性负荷的不断增加,特别是电力电子器件的广泛应用,系统中电能质量日益恶化;另一方面,越来越多的用户对电能质量提出了更高的要求,提高配电系统的电能质量已经倍受关注。在配电系统中的公共连接点安装统一电能质量控制器(UPQC),既可提高供电系统的电压质量和供电可靠性,又能抑制负载引起的各种电能质量问题向电网侧扩散,可以保证敏感负载获得高质量的电能供应,同时也提高和改善了配电系统的电能质量。
文章以校“十五”专项科技基金课题“柔性供配电系统(配电FACTS,FACDS)”为研究背景,重点对用于配电系统的三相四线制统一电能质量控制器中的串联部分进行了理论研究和实验装置的研制,搭建了统一电能质量控制器的硬件平台,文中所设计的装置容量为10kVA。
文章研究了统一电能质量控制器的拓扑结构与控制方法,分析了统一电能质量控制器对配电系统电压和负载电流的补偿原理,对统一电能质量控制器中的并联部分和串联部分的功能进行了分解,在此基础上建立了统一电能质量控制器中串联部分的数学模型。文中重点研究了统一电能质量控制器装置中串联部分的畸变电压检测方法以及系统的控制策略,采用了基于Park变换的电压畸变量检测方法,该种方法可以对电网电压的畸变进行小延时的检测,并且不需要通过硬件电路来获得电网电压的相位信息。文中对不同的PWM控制方式的优缺点进行了比较,采用了三角波比较法。文中采用MATLAB仿真软件搭建了三相四线制串联补偿系统的仿真模型,对不同的配电系统电压问题进行了仿真分析,证明了本检测方法的可行性。
文章完成了统一电能质量控制器主电路的设计,并结合Pspice电路仿真工具对电路的参数进行了优化选择。设计了基于DSP TMS320F2812的全数字化控制系统,完成了串联部分的硬件电路设计与调试。文中采用C语言编写了相应的控制软件并对程序进行了优化,使程序能够在规定的时间内完成相应的检测和计算任务,以保证装置的运行稳定性和可靠性。最后文章对系统进行了实验研究,给出了实验波形,对实验结果进行了分析。
With the development of power electronic technology and emergency of much non-linear load in power system, the power quality has been more and more deterioration. At the same time, customers' requirements on the quality and reliability of electrical power supply grow higher and higher. Unified Power Quality Conditioner used in three-phase four-line system can effectively compensate multiple different power quality interferences originated either from the load side or from the line side, improve the reliability and quality of power supply.
Unified Power Quality Controller as a promising Integrate Compensator has already attracted people's widespread attention. This dissertation is a part of the project of Flexible Alterative Current Distribution System which is belongs to School Fifteenth Special Science and Technology Fund. This dissertation is focus on the study of series converter of Unified Power Quality Controller for three-phase four-line distribution power system which capacity is 10kVA.
This dissertation presents topological structure and control strategies of Unified Power Quality Controller, analyzed UPQC's Compensation Principle and amathematical model for UPQC's series part. This dissertation focus on the study of Detection Method of Voltage distortion for UPQC's series part and the Control Strategies. The dissertation finally chooses the Detection Method of Voltage distortion based on Park Transforms. analyze the advantage and disadvantage of different PWM control methods. developed whole system using Matlab/Simulink. Computer simulation results demonstrated that the proposed Detection Method of Voltage distortion is correct and valid.
This dissertation also designs the parameters of UPQC's series part main circuit and combination with simulation to optimize the parameters. A full digital control system based on DSP is built with TMS320F2812 and the hardware circuit of UPQC's series part control system have been designed and tested. The control program is written by C language. Finally this dissertation does the experiments of UPQC's series part, shows the experiment wave and analyses the experiment result.
文章以校“十五”专项科技基金课题“柔性供配电系统(配电FACTS,FACDS)”为研究背景,重点对用于配电系统的三相四线制统一电能质量控制器中的串联部分进行了理论研究和实验装置的研制,搭建了统一电能质量控制器的硬件平台,文中所设计的装置容量为10kVA。
文章研究了统一电能质量控制器的拓扑结构与控制方法,分析了统一电能质量控制器对配电系统电压和负载电流的补偿原理,对统一电能质量控制器中的并联部分和串联部分的功能进行了分解,在此基础上建立了统一电能质量控制器中串联部分的数学模型。文中重点研究了统一电能质量控制器装置中串联部分的畸变电压检测方法以及系统的控制策略,采用了基于Park变换的电压畸变量检测方法,该种方法可以对电网电压的畸变进行小延时的检测,并且不需要通过硬件电路来获得电网电压的相位信息。文中对不同的PWM控制方式的优缺点进行了比较,采用了三角波比较法。文中采用MATLAB仿真软件搭建了三相四线制串联补偿系统的仿真模型,对不同的配电系统电压问题进行了仿真分析,证明了本检测方法的可行性。
文章完成了统一电能质量控制器主电路的设计,并结合Pspice电路仿真工具对电路的参数进行了优化选择。设计了基于DSP TMS320F2812的全数字化控制系统,完成了串联部分的硬件电路设计与调试。文中采用C语言编写了相应的控制软件并对程序进行了优化,使程序能够在规定的时间内完成相应的检测和计算任务,以保证装置的运行稳定性和可靠性。最后文章对系统进行了实验研究,给出了实验波形,对实验结果进行了分析。
With the development of power electronic technology and emergency of much non-linear load in power system, the power quality has been more and more deterioration. At the same time, customers' requirements on the quality and reliability of electrical power supply grow higher and higher. Unified Power Quality Conditioner used in three-phase four-line system can effectively compensate multiple different power quality interferences originated either from the load side or from the line side, improve the reliability and quality of power supply.
Unified Power Quality Controller as a promising Integrate Compensator has already attracted people's widespread attention. This dissertation is a part of the project of Flexible Alterative Current Distribution System which is belongs to School Fifteenth Special Science and Technology Fund. This dissertation is focus on the study of series converter of Unified Power Quality Controller for three-phase four-line distribution power system which capacity is 10kVA.
This dissertation presents topological structure and control strategies of Unified Power Quality Controller, analyzed UPQC's Compensation Principle and amathematical model for UPQC's series part. This dissertation focus on the study of Detection Method of Voltage distortion for UPQC's series part and the Control Strategies. The dissertation finally chooses the Detection Method of Voltage distortion based on Park Transforms. analyze the advantage and disadvantage of different PWM control methods. developed whole system using Matlab/Simulink. Computer simulation results demonstrated that the proposed Detection Method of Voltage distortion is correct and valid.
This dissertation also designs the parameters of UPQC's series part main circuit and combination with simulation to optimize the parameters. A full digital control system based on DSP is built with TMS320F2812 and the hardware circuit of UPQC's series part control system have been designed and tested. The control program is written by C language. Finally this dissertation does the experiments of UPQC's series part, shows the experiment wave and analyses the experiment result.
引文
铩颷1]The IEEE Standard dictionary of electrical and electronics terms,6~(th)edition,IEEE Std.100-1996,IEEE,New York,1997
[2]王兆安、杨君、刘进军。谐波抑制和无功功率补偿(第二版)。北京:机械工业出版社,1998
[3]刘凤君编著,市电电能质量补偿技术,北京:科学出版社,2005
[4]肖先勇,杨洪耕,刘俊勇,电能质量问题的研究和技术进展(系列),电力自动化设备2004,24(4):1-4
[5]Hideaki Fujita,and Hirofumi Akagi,The Unified Power Quality Conditioner:The Integration ofSeries- and Shunt-Active Filters,IEEE TRANSACTIONS ON POWER ELECTRONICS,VOL.13,NO.2,MARCH 1998
[6]孙树勤,林海雪编著,干扰性负荷的供电 北京:中国电力出版社,1996
[7]姜齐荣、赵东元、陈建业。有源电力滤波器--结构、原理、控制。北京:科学出版社,2005
[8]张代润,有源电力滤波技术研究的新进展(续),电工技术,2000年8期)
[9]L.S.Czarnecki and M.S.Hsu.,Thyristor Controlled Susceptances for Balancing CompensatorOperated Under Non-Sinusoidal Conditions",Proc.IEE,Part B 1994
[10]Takeshi Furuhashi,Shigeru Okuma and Yoshiki Uchikawa,A Study on the Theory ofInstananeous Reactive Power,IEEE Transactions Industry Electronics,VOL.37,No.1,Feb.1990
[11]Yan Hui,Li Jun,Tang Guoqing,et al.Study of series power quality compensatorwith feedback control strategy for inverters[C]//Proceeding of the 2004 1EEE In-ternational Conference on Electric Utility Deregulation,Restructuring and PowerTechnologies.Hongkong,2004:752-757
[12]王凯斐,王兆安,基于三相四线变流器结构动态电压恢复器[硕士论文],西安交通大学2004.03
[13]杨亚飞,顾湘武,基于DSP的动态电压恢复器检测方法的研究[硕士论文],华北电力大学(保定)2003.12
[14]彭春萍,陈允平,查晓明,基于DSP的串联型电能质量调节器的研究[硕士论文],武汉大学
[15]尤勇,韩民晓,动态电压恢复器的研制[硕士论文],华北电力大学(北京),2004.02
[16]周雪松,张智勇,马幼捷,向龙瑞,动态电压恢复器检测方法与补偿策略的研究,电力电子技术 2006,40(3):123-125
[17]王智勇,吴正国,侯新国,基于动态预测的DVR检测算法,电工技术学报,2007,22(1):125-131
[18]罗世国,侯振程,一种谐波及无功电流的自适应检侧方法和神经网络信号处理方法,电工技术学报,1993年第3期
[19]李旷,左强,中压大容量DVR的拓扑结构及其控制方法研究,四川电力技术,2006,29(6):38-42
[20]史伟伟,唐国庆,李俊,动态电压恢复器的控制策略,东南大学学报(自然科学版), 2007,37(1):64-69
铩颷21]J.Arrillaga,D.A.Bradley,P.S.Bodger;容健纲,张文亮译,电力系统谐波,武昌:华中理工大学出版社,1994
[22]宋文南,刘宝仁编著,电力系统谐波分析,北京:水利电力出版社,1995
[23]电力系统谐波专著:基本原理、分析方法和滤波器设计=Power systems harmonics:Fundamentals,analysiS and filter design/(奧地利)George J.Wakileh著:徐政译,北京:机械工业出版社,2003
[24]李景禄主编,电力系统电磁兼容技术,北京:中国电力出版社,2007
[25]罗发龙,李衍达,神经网络信号处理,北京:电子工业出版社 1993
[27]IEEE-519,IEEE Recommended Practices and Requirements for Harmonic Control inElectric Power Systems[S].1992
[28]IEC 1000-3-2,Electromagnetic Compatibility-Part3:Limits-Section 2:Limits forharmonic current emissions(equipment input current<16A per phase)[S].March,1995
[29]IEC 1000-3-4,Electromagnetic Compatibility-Part 3:Limits Section 4:Limits forharmonic current emissions(equipment input current >16A per phase)[S].April,1995
[30]IEC 1000-3-6.Electromagnetic compatibility(EMC)-part 3:Limits -section 6:assessment of emission limits for distorting loads in MV and HV power systems-basicEMC publication.1996-10
[31]IEC 1000-3-7,Electromagnetic Compatibility-part 3:Limits-Section 7:Generalguide on harmonics and inter-harmonics measurements and instrumentation for powersupply systems and equipment connected thereto[S].April 1995
[32]IEC 1000-4-7,Electromagnetic compatibility(EMC)-part 4:testing andmeasurement techniques-section 7:general guide on harmonics and inter-harmonicsmeasurements and instrumentation for power supply systems and equipment connectedthereto.1991-07
[33]吴天明,谢小竹,彭彬。MATLAB电力系统设计与分析。北京:国防工业出版社,2004.1
[34]支丽欣,尹忠东,韩俊彪,胡飞雄。动态电压恢复器的能量控制研究,高电压技术,2006.11(32):149-152
[2]王兆安、杨君、刘进军。谐波抑制和无功功率补偿(第二版)。北京:机械工业出版社,1998
[3]刘凤君编著,市电电能质量补偿技术,北京:科学出版社,2005
[4]肖先勇,杨洪耕,刘俊勇,电能质量问题的研究和技术进展(系列),电力自动化设备2004,24(4):1-4
[5]Hideaki Fujita,and Hirofumi Akagi,The Unified Power Quality Conditioner:The Integration ofSeries- and Shunt-Active Filters,IEEE TRANSACTIONS ON POWER ELECTRONICS,VOL.13,NO.2,MARCH 1998
[6]孙树勤,林海雪编著,干扰性负荷的供电 北京:中国电力出版社,1996
[7]姜齐荣、赵东元、陈建业。有源电力滤波器--结构、原理、控制。北京:科学出版社,2005
[8]张代润,有源电力滤波技术研究的新进展(续),电工技术,2000年8期)
[9]L.S.Czarnecki and M.S.Hsu.,Thyristor Controlled Susceptances for Balancing CompensatorOperated Under Non-Sinusoidal Conditions",Proc.IEE,Part B 1994
[10]Takeshi Furuhashi,Shigeru Okuma and Yoshiki Uchikawa,A Study on the Theory ofInstananeous Reactive Power,IEEE Transactions Industry Electronics,VOL.37,No.1,Feb.1990
[11]Yan Hui,Li Jun,Tang Guoqing,et al.Study of series power quality compensatorwith feedback control strategy for inverters[C]//Proceeding of the 2004 1EEE In-ternational Conference on Electric Utility Deregulation,Restructuring and PowerTechnologies.Hongkong,2004:752-757
[12]王凯斐,王兆安,基于三相四线变流器结构动态电压恢复器[硕士论文],西安交通大学2004.03
[13]杨亚飞,顾湘武,基于DSP的动态电压恢复器检测方法的研究[硕士论文],华北电力大学(保定)2003.12
[14]彭春萍,陈允平,查晓明,基于DSP的串联型电能质量调节器的研究[硕士论文],武汉大学
[15]尤勇,韩民晓,动态电压恢复器的研制[硕士论文],华北电力大学(北京),2004.02
[16]周雪松,张智勇,马幼捷,向龙瑞,动态电压恢复器检测方法与补偿策略的研究,电力电子技术 2006,40(3):123-125
[17]王智勇,吴正国,侯新国,基于动态预测的DVR检测算法,电工技术学报,2007,22(1):125-131
[18]罗世国,侯振程,一种谐波及无功电流的自适应检侧方法和神经网络信号处理方法,电工技术学报,1993年第3期
[19]李旷,左强,中压大容量DVR的拓扑结构及其控制方法研究,四川电力技术,2006,29(6):38-42
[20]史伟伟,唐国庆,李俊,动态电压恢复器的控制策略,东南大学学报(自然科学版), 2007,37(1):64-69
铩颷21]J.Arrillaga,D.A.Bradley,P.S.Bodger;容健纲,张文亮译,电力系统谐波,武昌:华中理工大学出版社,1994
[22]宋文南,刘宝仁编著,电力系统谐波分析,北京:水利电力出版社,1995
[23]电力系统谐波专著:基本原理、分析方法和滤波器设计=Power systems harmonics:Fundamentals,analysiS and filter design/(奧地利)George J.Wakileh著:徐政译,北京:机械工业出版社,2003
[24]李景禄主编,电力系统电磁兼容技术,北京:中国电力出版社,2007
[25]罗发龙,李衍达,神经网络信号处理,北京:电子工业出版社 1993
[27]IEEE-519,IEEE Recommended Practices and Requirements for Harmonic Control inElectric Power Systems[S].1992
[28]IEC 1000-3-2,Electromagnetic Compatibility-Part3:Limits-Section 2:Limits forharmonic current emissions(equipment input current<16A per phase)[S].March,1995
[29]IEC 1000-3-4,Electromagnetic Compatibility-Part 3:Limits Section 4:Limits forharmonic current emissions(equipment input current >16A per phase)[S].April,1995
[30]IEC 1000-3-6.Electromagnetic compatibility(EMC)-part 3:Limits -section 6:assessment of emission limits for distorting loads in MV and HV power systems-basicEMC publication.1996-10
[31]IEC 1000-3-7,Electromagnetic Compatibility-part 3:Limits-Section 7:Generalguide on harmonics and inter-harmonics measurements and instrumentation for powersupply systems and equipment connected thereto[S].April 1995
[32]IEC 1000-4-7,Electromagnetic compatibility(EMC)-part 4:testing andmeasurement techniques-section 7:general guide on harmonics and inter-harmonicsmeasurements and instrumentation for power supply systems and equipment connectedthereto.1991-07
[33]吴天明,谢小竹,彭彬。MATLAB电力系统设计与分析。北京:国防工业出版社,2004.1
[34]支丽欣,尹忠东,韩俊彪,胡飞雄。动态电压恢复器的能量控制研究,高电压技术,2006.11(32):149-152