用户侧微电网双向计量终端及计量模式研究

发布时间：2018-11-15 07:08

【摘要】：随着绿色低碳经济的发展需求,新能源得到了广泛应用。新城镇化建设促进分布式电源的推广使用,推动了智能电网的建设。分布式电源大量接入微电网,提高了电网供电的可靠性与安全性,减少了电能传输中的能量损耗。为了鼓励可再生能源的发展,国家对分布式电源发电提供财政补贴;与此同时,用户的售电与用电行为,使得传统电表难以满足双向独立计量的要求。为了实现用户侧微电网的双向互动响应,计量终端还应能对家庭微电网进行能效管理。本论文结合国家高技术研究发展计划课题的微电网示范工程的实际需求,设计了双向计量装置。本文首先分析了微电网示范工程对双向计量装置的功能需求,分析了不同类型微电网的计量需求。接着,依据计量装置的技术规范的要求,设计了双向计量装置的硬件方案。其次,在STM32平台上移植FreeRTOS操作系统,并对计量装置进行了软件设计。对双向计量、分时复费率电价、能效管理与双向通信功能进行了重点介绍,并对装置进行了校表与精度测试。之后,提出了基于电能质量的分布式电源上网电价方案,为未来电力市场下分质计价提供一个范例。最后,对不同类型微电网结构,结合分布式电源的产权与运营模式,对计量模式进行了分析。
[Abstract]:With the development of green low-carbon economy, new energy has been widely used. The construction of new urbanization promotes the application of distributed power generation and promotes the construction of smart grid. A large number of distributed power sources are connected to microgrid, which improves the reliability and security of power supply, and reduces the energy loss in power transmission. In order to encourage the development of renewable energy, the state provides financial subsidies for distributed power generation. At the same time, the consumers' behavior of selling and using electricity makes it difficult for traditional meters to meet the requirements of two-way independent metering. In order to realize the two-way interactive response of the user side microgrid, the metering terminal should also be able to manage the energy efficiency of the household microgrid. In this paper, a bidirectional metering device is designed according to the actual demand of the micro grid demonstration project of the National High Technology Research and Development Project. In this paper, the functional requirements of bidirectional metering devices for the demonstration project of microgrid are analyzed, and the metering requirements of different types of microgrid are analyzed. Then, according to the technical specification of metering device, the hardware scheme of bidirectional metering device is designed. Secondly, the FreeRTOS operating system is transplanted on the STM32 platform, and the software of the metering device is designed. The functions of bidirectional metering, timesharing rate, energy efficiency management and bidirectional communication are emphatically introduced, and the calibration table and precision of the device are tested. After that, a distributed power supply pricing scheme based on power quality is proposed, which provides an example for the pricing of power supply in the future. Finally, the measurement model is analyzed for different types of microgrid structure, combined with the property right and operation mode of distributed generation.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM933.4

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