Validating fundamental-only energy measurement

A electric meter testing system comprising:

• a precision voltage source;
• a precision current source;
• and
• a computing device comprising a processor and a memory, the computing device configured to:
• select a wideband voltage waveform from a plurality of predefined voltage waveforms, the wideband voltage waveform comprising a fundamental voltage component and a harmonic voltage component;
• select a wideband current waveform from a plurality of predefined current waveforms, the wideband current waveform comprising a fundamental current component and a harmonic current component;
• access, from the memory, a wideband demand indicating an amount of power expected to be delivered by the wideband voltage waveform and the wideband current waveform over a period of time;
• access, from the memory, a fundamental demand indicating an amount of power expected to be delivered by the fundamental voltage component and the fundamental current component over the period of time;
• calculate, by the processor, an expected registration for a meter under test by comparing the fundamental demand to the wideband demand;
• measure a measured registration by causing the precision voltage source to apply the wideband voltage waveform to the meter under test and the precision current source to apply the wideband current waveform to the meter under test, wherein the meter under test is configured to measure power consumption from the fundamental voltage component and the fundamental current component only;
• calculate, by the processor and based on the expected registration and the measured registration, an error for the meter;
• and
• when the error is outside a tolerance, identify the meter under test as non-compliant.

A meter testing environment comprising:

• an electric meter configured to measure a power consumption from a fundamental component only;
• a precision voltage source;
• a precision current source;
• and
• a computing device comprising a processor and a memory, the computing device configured to:
• select a wideband voltage waveform from a plurality of predefined voltage waveforms, the wideband voltage waveform comprising a fundamental voltage component and a harmonic voltage component;
• select a wideband current waveform from a plurality of predefined current waveforms, the wideband current waveform comprising a fundamental current component and a harmonic current component;
• access, from the memory, a wideband demand indicating an amount of power expected to be delivered by the wideband voltage waveform and the wideband current waveform over a period of time;
• access, from the memory, a fundamental demand indicating an amount of power expected to be delivered by the fundamental voltage component and the fundamental current component over the period of time;
• calculate, by the processor, an expected registration for a meter under test by comparing the fundamental demand to the wideband demand;
• measure, at the electric meter, a measured registration by applying the wideband voltage waveform and the wideband current waveform to the meter;
• calculate, by the processor and based on the expected registration and the measured registration, an error for the meter;
• and
• when the error is outside a tolerance, identifying the meter under test as non-compliant.