During the Twelfth Five-Year plan,large-scale construction of smart grid with safe and stable operation requires a timely and accurate short-term load forecasting method.Moreover,along with the full-scale smart grid c...During the Twelfth Five-Year plan,large-scale construction of smart grid with safe and stable operation requires a timely and accurate short-term load forecasting method.Moreover,along with the full-scale smart grid construction,the power supply mode and consumption mode of the whole system can be optimized through the accurate short-term load forecasting;and the security,stability and cleanness of the system can be guaranteed.展开更多
电力系统稳定器(Power System Stabilizer,PSS)通过调节励磁电流进而调整发电机内电势,以实现对有功低频振荡的抑制。由于系统中除了PSS控制器外,还存在各种FACTS元件和储能装置,各控制器参数间需要协调控制以提高系统阻尼。为此,对PSS...电力系统稳定器(Power System Stabilizer,PSS)通过调节励磁电流进而调整发电机内电势,以实现对有功低频振荡的抑制。由于系统中除了PSS控制器外,还存在各种FACTS元件和储能装置,各控制器参数间需要协调控制以提高系统阻尼。为此,对PSS与储能装置间的协调机制进行了分析,确定了相应的协调控制策略,同时建立了相应的参数优化模型,利用细菌群体趋药性(BCC)算法对PSS和储能控制器进行了参数优化。最后基于电力系统分析综合程序(PSASP),以4机2区域系统模型为例,搭建相关控制器模型,对协调优化方法进行了验证,特征值分析及时域仿真结果表明,本文所提优化策略能够提高系统阻尼,有效抑制低频振荡。展开更多
文摘During the Twelfth Five-Year plan,large-scale construction of smart grid with safe and stable operation requires a timely and accurate short-term load forecasting method.Moreover,along with the full-scale smart grid construction,the power supply mode and consumption mode of the whole system can be optimized through the accurate short-term load forecasting;and the security,stability and cleanness of the system can be guaranteed.
文摘电力系统稳定器(Power System Stabilizer,PSS)通过调节励磁电流进而调整发电机内电势,以实现对有功低频振荡的抑制。由于系统中除了PSS控制器外,还存在各种FACTS元件和储能装置,各控制器参数间需要协调控制以提高系统阻尼。为此,对PSS与储能装置间的协调机制进行了分析,确定了相应的协调控制策略,同时建立了相应的参数优化模型,利用细菌群体趋药性(BCC)算法对PSS和储能控制器进行了参数优化。最后基于电力系统分析综合程序(PSASP),以4机2区域系统模型为例,搭建相关控制器模型,对协调优化方法进行了验证,特征值分析及时域仿真结果表明,本文所提优化策略能够提高系统阻尼,有效抑制低频振荡。
