新型低谐波静止无功补偿器及其应用

介绍了一种基于PWM技术的新型静止无功补偿器(PSVC)。在单机无穷大系统中，运用小扰动分析法推导出了PSVC的一阶惯性模型。理论分析证明，PSVC与TCR和TSC等其他静止无功补偿器(SVC)相比，可以更快速、精确地补偿无功功率，而且自身几乎不产生谐波，从而有效地稳定系统电压。对PSVC开环和闭环系统的计算机仿真结果征明了理论分析的正确性。

A NOVEL LOW HARMONIC CONTENT SVC AND ITS APPLICATION

A novel PWM based static VAR compensator (PSVC) is introduced. In a single generator infinite system, the one order inertia model of PSVC is derived with the small disturbance method. The theoretical analysis indicates that PSVC, compared with other SVCs, such as TCR and TSC, can compensate the reactive power more rapidly and accurately with little harmonic. Therefore it can stabilize the system voltage efficiently. The digital simulation results of the open loop and closed loop responses of PSVC prove the validity of the analysis.