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本文根据两台小功率静止中频电源并联运行的模拟试验及两台500KW1000HZ静止中频电源装置并联运行的成功,已投入生产使用。通过试验及工业运行,研究大功率静止中频电源的并联运行及提高逆变器启动能力的有效方法。文中,从理论和工程实际两个方面比较详细地分析了静止中频电源并联的条件及在工程上实现的方法;深入地分析了带电流、电压闭环的反馈控制系统对于实现并联及改善系统性能所起的重要作用。最后专门阐述了提高逆变器启动能力的有效方法及大功率逆变器的负载配置问题。
Based on the successful simulation of two parallel operation of low power static IF power supply and the parallel operation of two 500KW 1000HZ stationary IF power supply, this paper has been put into production and use. Through experiments and industrial operation, the paper studies the parallel operation of high power static frequency power supply and the effective method to improve the starting ability of the inverter. In this paper, conditions of parallel static power supply and the method of engineering are analyzed in detail in terms of theory and engineering practice. The feedback control system with current and voltage closed loop is deeply analyzed in order to realize parallel connection and improve system performance Play an important role. Finally, it elaborates the effective method to improve the starting ability of the inverter and the load configuration of the high-power inverter.