| Abstract:In order to meet the increasing demand for power energy, micro-grid grid-connected operation is the main development trend of power system. Although it can improve the supply of power energy, due to the influence of the randomness of distributed generation output, the power quality will also decline, which is not conducive to the subsequent development of power system. A study on the construction of micro-grid grid-connected operation power quality safety monitoring model based on analytic hierarchy process is proposed. Deeply analyze the power quality interference sources, and on this basis, select appropriate power quality safety monitoring indicators, calculate the weight value of power quality safety monitoring indicators using the analytic hierarchy process, determine the power quality safety monitoring model, and formulate power quality safety judgment rules, so as to achieve accurate monitoring of power quality safety. The experimental data shows that after the application of the built model, the maximum integrity of the power quality safety monitoring index is 96%, and the power quality safety monitoring results are consistent with the actual results, which fully confirms that the built model has better power quality safety monitoring effect. |
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