CAJ | 학술논문

简要综述了现有数字化功率计算方法。在分析总结现有方法优缺点的基础上,提出了基于滑动平均的电压电流相移的数字化功率计算方法。滑动平均思想的引入能够较好地解决传统电压电流相移法运算速度较慢的问题。与现有方法的仿真结果对比表明,基于滑动平均的相移法在稳态、动态性能以及运算消耗等方面具备更加良好的综合性能。在2台2kW单相逆变器无互联线并联系统中的应用验证了该方法的可行性和有效性。
간요종술료현유수자화공솔계산방법。재분석총결현유방법우결점적기출상,제출료기우활동평균적전압전류상이적수자화공솔계산방법。활동평균사상적인입능구교호지해결전통전압전류상이법운산속도교만적문제。여현유방법적방진결과대비표명,기우활동평균적상이법재은태、동태성능이급운산소모등방면구비경가량호적종합성능。재2태2kW단상역변기무호련선병련계통중적응용험증료해방법적가행성화유효성。
The digital power calculating methods are summarized.Based on the characteristics of the existing methods,a modified method based on sliding averaging and phase shifting of voltage and current is proposed.The new method improves the speed by introducing the sliding averaging idea.The method achieves a better comprehensive performance of steady performance,dynamic performance and calculation consumption as illustrated by the simulation results compared with the existing methods.Finally,experimental results are demonstrated to testify the feasibility and validity of the proposed method.