ABB PPD512励磁系统是同步发电机的稳定运行的重要组成部分,其主要任务是通过调节励磁绕组的电流来调节发电机转子电流电压来控制发电机机端电压,满足发电机正常发电的需要,同时控制发电机组间无功功率的合理分配,提高同步发电机并列运行的稳定性,可靠性。同步发电机的励磁系统主要由功率单元和调节器（装置）两大部分组成。同步发电机的励磁系统重要组成。
PPD512
ABB PPD512励磁系统主要任务：维持发电机机端电压在给定水平;控制无功功率的分配;提高同步发电机并联运行的稳定性;提高电力系统继电保护装置动作准确性快速灭磁。维持机端电压在发电机正常运行情况下励磁调节装置应维持发电机端电压或主变压器高压侧电压在给定水平。当发电机负荷变化时,要保证发电机的端电压为给定值则必须调节励磁。
PPD512
The ABB PPD512 excitation system is an important component of the stable operation of synchronous generators. Its main task is to control the generator terminal voltage by adjusting the current of the excitation winding to control the generator rotor current and voltage, meeting the needs of normal generator generation. At the same time, it controls the reasonable distribution of reactive power between generator sets, improving the stability and reliability of synchronous generator parallel operation. The excitation system of a synchronous generator mainly consists of two parts: a power unit and a regulator (device). The excitation system of synchronous generators is an important component.
PPD512
The main task of ABB PPD512 excitation system is to maintain the generator terminal voltage at a given level; Control the distribution of reactive power; Improve the stability of parallel operation of synchronous generators; Improve the accuracy of relay protection devices in the power system and quickly eliminate excitation. The excitation regulation device should maintain the generator terminal voltage or the high-voltage side voltage of the main transformer at a given level under normal operation of the generator. When the load of the generator changes, excitation must be adjusted to ensure that the terminal voltage of the generator is at the given value.
PPD512
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PPD512
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