种治理直流换流站交流母线出现异常谐波的方法

• Format: Patent
• Language: Chinese
• Published: 19.06.2018
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SYSTEMS FOR STORING ELECTRIC ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

本发明涉及种治理直流换流站交流母线出现异常谐波的方法，属于电力系统电磁暂态分析技术领域，该方法包括：构造等效接口电路，该电路由两个电阻及个电抗组成，其中，第二电阻与电抗并联后再与第电阻串联；对所述等效接口电路的阻抗求解；根据得到的等效接口电路的阻抗值选取段具有等效接口电路的阻抗值的交流架空短线作为接口电路连接在接口理想电压源与换流站换流变压器之间。 The invention relates to a method for treating abnormal harmonic waves of an alternating current bus of a direct current converter station, and belongs to the technical field of electromagnetic transient analysis of electrical power systems. The method comprises the steps of constructing an equivalent interface circuit consisting of two resistors and a reactor, wherein the second resistor is connected with the first resistor in series after being connected with the reactor in parallel; solving the impedance of the equivalent interface circuit; according to the acquired impedance of the equivalent interface circuit, selecting an alternating current overhead stub with the impedance of the equivalent interface circuit as an interface circuit to be connected between an ideal voltage source of the interface and a converter transformer of the