基于多量测混合动态仿真的同步发电机参数验证

Synchronous Generator Parameter Verification Based on Multiple Measuring Hybrid Dynamic Simulation

同步发电机的参数对动态仿真结果有至关重要的影响,为提高其有效性,提出一种将多种量测信号与仿真模型相结合的混合动态仿真方法,据此提出同步发电机电气参数的验证方法。该方法利用自定义模型功能,将任意量测精确地注入仿真模型,克服了传统方法存在的注入信号类型受限、精度低,以及可能需要修改仿真程序等缺点。利用该方法将发电机的机端电压幅值、相位、励磁电压和功角精确地注入发电机模型,对电气参数进行严格验证。针对大电网中量测结果与仿真结果不一致的情况,提出了同步发电机参数误差溯源策略。四机双区域系统算例以及某实际电网的实测参数验证算例证实了该方法的有效性。

For improving effectiveness of affection on dynamic simulation result by synchronous generator parameter, this pa- per presents one hybrid dynamic simulation method based on combination of multiple measuring signal and simulating model. Accordingly it proposes one verification method for synchronous generator electric parameter. This hybrid simulation meth- od uses custom model function to inject willful measuring into simulation model which overcomes defects of traditional meth- od such as limited types and low precision of inject signals and necessity to modify simulating procedure. By using this meth- od, it can precisely inject terminal voltage amplitude , phase angle, excitation voltage and power angle into generator model and strictly verify electric parameter. Aiming at inconsistency of measuring result and simulation result in large power grid, it proposes synchronous generator parameter error source strategy. Level 4 double area example and one practical power grid actual measuring parameter verification example confirm effectiveness of this method.