Construction of a Test System for Smart Meter Dynamic Error Using TASK Algorithm

Abstract This exploration aims to improve the measurement accuracy of the electric energy meter under dynamic load conditions, and try to minimize the dynamic error. With the popularization of energy-saving and environmental protection concepts, exploring the dynamic power error of electric meters in the electric field becomes the basis for the reliable, economical, and efficient operation of smart grids. According to the actual dynamic load working mode in the electric power field, a Ternary Amplitude Shift Keying (TASK) dynamic test current and dynamic test power model are designed. Then, a test system for smart meter dynamic error is constructed based on the TASK algorithm and the model designed above. Furthermore, different sample meters are used to simulate and analyze the dynamic power error test performance of the error test system. The unidirectional dynamic power error of each sample meter is analyzed. Results demonstrate that the unidirectional power error of the foreign factory's sample meter is less than 0.2% when the test current is 2.5A. The bi-directional power analysis suggests that only the dynamic error of the foreign factory's sample meter is within the error range of 0.2%. The construction scheme of the dynamic error test system for electric energy meters is achieved to solve the dynamic error test problem under the bidirectional power test model oriented to time process. This system provides the basis for the development of the power field.