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自动电压控制(AVC)系统是提高电压管理水平、降低网损、保证系统安全稳定运行的重要手段。针对发电系统并网方式变化可能导致电压大幅波动的问题,提出了一种新的基于Boltzmann公式的自适应变步长电压控制方法,该方法根据目标电压与实际电压差值采用快速逼近的办法实现电压跟踪调节功能。从仿真计算结果可以看出,该方法兼备了电压调节的平滑性和稳定性,具备一定的纠错功能,可有效防止由于系统阻抗变化导致的电压波动事故的发生,避免了对发电设备的损害,提高了系统的安全稳定水平。
Automatic voltage control (AVC) system is to improve the level of voltage management, reduce network loss, to ensure the safe and stable operation of the system an important means. Aiming at the problem of voltage fluctuation caused by the change of grid connection in power generation system, a new adaptive step-variable voltage control method based on Boltzmann’s formula is proposed. This method is based on the fast approximation of the target voltage and the actual voltage difference Voltage tracking adjustment function. From the simulation results, it can be seen that this method combines the smoothness and stability of voltage regulation with some error correction function, which can effectively prevent the occurrence of voltage fluctuation caused by the change of system impedance and avoid the damage to the power generation equipment , Improve the security and stability of the system.