【摘要】 文章在分析目前和将来电力系统发展的基础上提出了在电站中采用静止无功补偿器(SVC)与异步发电机相结合代替同步发电机的方案。首次提出了将电站高压侧母线电压及其联络线上所流动的无功电流作为SVC调节器的反馈信号,从而使异步发电机有了一定的无功调节特性,即“正调差系数”,实现了灵活的双向无功调节能力的控制策略。仿真研究表明:在电站中采用SVC和异步发电机相配合可改善高压电力系统的无功调节特性,并使系统具有良好的动态品质。更多还原

【Abstract】 On the basis of analyzing the development ofpower system at present and in the future, a project of adopting asynchronous generator coupled with SVC to replace thesynchronous generator is proposed. Such a control strategy is firstly put forward, that is, taking the voltage of high-tension busbar of the power plant and the reactive current of its tie-line for the feedback signal for SVC to make the voltage-reactive power curve of asynchronous generator to be similar to the voltage-reactive power curve of synchronous generator and tomake the asynchronous generator to have flexible bi-directional reactive power adjusting ability. Simulation results show that the reactive power adjusting characteristics of high-tension power system can be improved by use of the combination of SVC and asynchronous generators in the power plants.更多还原