CAJ | 학술논문

明确区分多个非线性负载对电网公共连接点（ PCC）处的谐波贡献是实现多谐波源责任划分的重要问题。首先采用波动量法将单相不控整流谐波源等效为诺顿等效模型，并通过谐波电流源值与单相不控整流电路的各次谐波电流值近似相等证明了诺顿等效模型的有效性。然后搭建了含有三个谐波源的等效电路，并等效出各自的诺顿等效模型。最后利用等效阻抗计算出各非线性负载各次谐波电压值，利用电压表示的谐波责任指标因子进行多谐波源电压责任分摊。文中方法简单明了且有效，有利于实际配电网含多谐波源责任划分的工程应用。
명학구분다개비선성부재대전망공공련접점（ PCC）처적해파공헌시실현다해파원책임화분적중요문제。수선채용파동량법장단상불공정류해파원등효위낙돈등효모형，병통과해파전류원치여단상불공정류전로적각차해파전류치근사상등증명료낙돈등효모형적유효성。연후탑건료함유삼개해파원적등효전로，병등효출각자적낙돈등효모형。최후이용등효조항계산출각비선성부재각차해파전압치，이용전압표시적해파책임지표인자진행다해파원전압책임분탄。문중방법간단명료차유효，유리우실제배전망함다해파원책임화분적공정응용。
A clear distinction to measure the harmonic contribution of the multiple nonlinear loads on point of common coupling of the power grid is important to achieve the division of responsibilities of the multi harmonic sources.This paper firstly uses the fluctuation method to transfer single phase uncontrolled rectifier circuit to Norton equivalent mod-el, and demonstrates the validity of the Norton equivalent model by comparing the value of harmonic current source and single-phase controlled rectifier circuit.Values of them are approximately equal.Then it sets up a circuit contains three harmonic sources and draws the Norton equivalent model of it.Finally, this paper calculates values of each har-monic voltage of every nonlinear load by using the equivalent impedance and uses voltage harmonic responsibility index factor dividing the responsibility of multi harmonic sources.This method is simple and effective, and it is also condu-cive to the practical application of distribution network with multi harmonic sources responsibility division.