分布式光伏发电在骆驼山洗煤厂的应用

    Application of distributed photovoltaic power generation mode at Luotuoshan Coal Preparation Plant

    • 摘要: 分布式光伏是一种新型的具有良好发展前景的发电和能源综合利用模式,与火力发电等传统集中式发电存在明显差异。为了解决传统发电因配电线路长,电压等级高出现电压波动不稳等问题,骆驼山洗煤厂遵循就近发电、并网、转换和使用的原则,采用“自发自用”形式,建设以555 Wp高效单晶硅光伏半片组件、具有MPPT功能的组串式逆变器、交流汇流箱以及防雷电装置组成的分布式光伏发电系统,重点开发数字化管理平台,无线传输技术以G2-4G-ST数据采集棒通过4G通讯实现远程监控,采用高效单晶光伏组件,利用BOOST升压斩波和DC-AC技术、组串式逆变器,提高太阳能发电系统的整体效率。生产实践表明:分布式光伏发电系统不仅有助于稳定提供同等规模系统的发电量,还能有效解决电力在升压及长途运输过程中的损耗问题。此外,分布式光伏发电项目具有无噪声、无光污染、无辐射等优势,满足零排放、零污染的静态发电要求,目前已成为可再生资源利用的主要形式之一。分布式光伏发电在能源领域具有显著的优势和重要性,对推动选煤厂绿色能源发展、减少环境污染,提高企业可持续发展具有一定的应用价值。

       

      Abstract: Distributed photovoltaic (PV) power generation, as a novel electricity generation and comprehensive energy utilization model with a promising development prospect, exhibits significant differences from traditional centralized power generation systems such as thermal power plants. In order to solve the problems such as lengthy power distribution lines and voltage fluctuations due to high voltage levels in traditional power generation, Luotuoshan Coal Preparation Plant operates by following of "local generation, grid connection, conversion, and utilization" and the strategy of power generation for own use. The constructed distributed PV system consists of the following components: 555 Wp high-efficiency monocrystalline silicon half-cell PV modules, string inverters with maximum power point tracking (MPPT) functionality, ac combiner boxes, and lightning protection devices. What is focused is the development of a digital management platform, and the wireless transmission technology that relies on the G2-4G-ST data acquisition modules to achieve remote monitoring through 4G communication. The use of the high-efficiency monocrystalline silicon photovoltaic modules as well as the BOOST step-up chopper and DC-AC technology and string inverters for improving overall practice shows that the distributed photovoltaic power generation system not only helps to stably provide the power generated by a system of the same scale, but also effectively solves the problem of power loss during the process of boosting and long-distance transmission. In addition, this power generation mode has the advantages of no noise, no light pollution, and no radiation, meeting the requirements of static power generation with zero emissions and zero pollution, and has nowadays become one of the main renewable resource utilization methods. Distributed photovoltaic power generation mode has significant advantages and importance in the energy field, and has certain application value for promoting the development of green energy in coal washing plants, reducing environmental pollution, and improving the sustainable development of enterprises.

       

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