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首页> 外文会议>International Conference on Advances in Big Data, Computing and Data Communication Systems >Maximum Rooftop Photovoltaic Hosting Capacity with Harmonics as Limiting Factor – Case Study for Mauritius
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Maximum Rooftop Photovoltaic Hosting Capacity with Harmonics as Limiting Factor – Case Study for Mauritius

机译：以谐波为限制因素的最大屋顶光伏容纳量–毛里求斯的案例研究

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摘要

With a growing urge to opt for environmentally friendly sources of energy, coupled with financial incentives that such schemes attract, many residential consumers are installing small rooftop photovoltaic systems at home. All these systems use electronics in their inverters and controllers; which contribute to harmonics in their outputs. Cumulative harmonic content in the distribution network can have adverse effect on the quality of supply and consequently affect sensitive equipment. To this effect, the IEEE 519-2014 standard defines the acceptable limits for harmonics in such network. Different types of network will react differently to the level of harmonics present depending on the network impedance. In this study, an actual residential area was modelled and fed with residential consumption data and photovoltaics outputs collected from the field. The level of harmonic pollution was observed with increasing penetration level of photovoltaic units and using different sizes of such units. The results were benchmarked against the limits specified in the IEEE 519-2014 standard. The losses these harmonics introduce in the network were also assessed. The findings can be used by an electrical utility to limit the amount of rooftops photovoltaic being connected so as not to degrade quality of supply.
机译：越来越多的人选择环境友好的能源，再加上此类计划吸引的经济诱因，许多居民消费者正在家里安装小型屋顶光伏系统。所有这些系统在其逆变器和控制器中都使用电子设备。会在其输出中产生谐波。配电网络中的累积谐波含量可能对供电质量产生不利影响，从而影响敏感设备。为此，IEEE 519-2014标准定义了此类网络中谐波的可接受限制。不同类型的网络将根据网络阻抗对存在的谐波水平做出不同的反应。在这项研究中，对实际居住区进行了建模，并提供了居民消费数据和从实地收集的光伏输出。随着光伏单元的渗透水平的提高和使用不同尺寸的此类单元，观察到谐波污染的水平。测试结果以IEEE 519-2014标准中指定的限制为基准。还评估了这些谐波在网络中引入的损耗。电力公司可以使用这些发现来限制所连接的屋顶光伏的数量，以免降低供电质量。

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