多功能电能质量发生器设计-电气工程专业论文.docxVIP

华 华 中 科 技 大 学 硕 士 学 位 论 文 II II Abstract Recently with the promotion of building a strong and smart grid, many new requirements are put forward in almost every aspect in the power system. In the Electrical disciplines, power quality problem has been the subject of widespread concern, the new problems requires the research more deeply. The main content of this paper is to study the signal generates of the power quality disturbance and it also develops a power quality generator. From the actual state of todays power system, this paper gives a brief introduction of the basic concepts of power qualities, summaries power quality problems in the power system, as well as the current research situation and central problem of the power quality. In this area chose the design of power quality disturbance generator as a research focus of this paper. Introduce the present research situation of domestic and foreign companies and research institutions in the relative study field. This paper focuses on the designed power quality disturbance signal generator with multifunction, and describes it in detail. Combined with the power quality standards and the relevant requirements of the electronic transformer, also combined with the requirements of IEC61850 communication standard, have designed the power quality signal generator based on the TI’S DSP TMS320f28335. In the MATLAB software situation develop a control interface that can connect to the hardware device, which can achieve real-time control, in this way to get the power quality transient signal. PSCAD/EMTDC is a well-know power system simulation software in this field, which can simulate a variety of power quality disturbance problems with widely accredited. With the simulation in PSCAD we can get the data of the power quality problems, and then load it into the power quality generator to get the real signal which more precise to the real power quality disturbance signal. With different program, the hardware device can rece