Abstract— The modern utility system is faced with two main problems: how to minimize losses in a power system and how to locate the source of harmonic pollution. Namely, the utility has losses whenever the power it delivers is greater than the power it registers at the point of common coupling (PCC). In this paper we will show that these losses occur because the measurement equipment and billing policy are not adequate, and we will stress the reasons why this happens. The main reason is the distortion power generated by nonlinear loads. The number of these loads at power grid is greater every day, thus enlarging the problem. Ordinary power meters are not able to measure distortion power, so in this paper we will also show which small modifications to existing ordinary meters needed, which could lead to the successful detection of sources of harmonic pollution, thus further reducing power losses. The suggested idea will be verified by numerous simulations and measurements on different household/office and industry loads that are commonly used. The proposed method is suitable either for software or hardware upgrade of existing smart meters, or it can be implemented on ordinary measurement systems.

中文翻译：

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标准电能表在电网谐波污染源检测和降低经济损失中的应用

摘要——现代电力系统面临两个主要问题：如何最大限度地减少电力系统的损耗以及如何定位谐波污染源。也就是说，只要它提供的功率大于它在公共耦合点 (PCC) 记录的功率，公用事业就会有损失。在本文中，我们将说明这些损失的发生是因为测量设备和计费策略不充分，我们将强调发生这种情况的原因。主要原因是非线性负载产生的失真功率。电网中这些负载的数量每天都在增加，从而扩大了问题。普通功率计无法测量失真功率，因此在本文中我们还将展示需要对现有普通功率计进行哪些小的修改，这可以导致成功检测谐波污染源，从而进一步降低功率损耗。建议的想法将通过对常用的不同家庭/办公室和工业负载的大量模拟和测量来验证。所提出的方法既适用于现有智能电表的软件或硬件升级，也可以在普通测量系统上实施。