电气传动2019,Vol.49Issue(8):3-6,4.DOI:10.19457/j.1001-2095.dqcd18816
静止变频器启动控制策略与限制曲线
Start Control Strategy and Limit Curve for SFC
摘要
Abstract
Static frequency converter drive is adopted in the flexible large synchronous unit,the best way to start synchronization can be set from the state of static or turning smooth into the target speed,no effect on the grid. From the perspective of the motor dynamics equation and electromagnetic relation equation,considering the mutual coupling between the motor stator and rotor and the disturbance of the windings pressure drop,to various control objects and actuator,the controller was designed. And according to the motor,the SFC equipment features,different start-up phase of the constraint condition and boundary curve were given,made under the condition of meet the safety equipment as much as possible to shorten the start time and improve the success rate. At last,the starting waveform of the control strategy in the application of 300 Mvar synchronous phasing unit was given,and the correctness and rationality of the control strategy were verified.关键词
静止变频器/启动/同步电机/控制策略/限制曲线Key words
static frequency converte(r SFC)/start/synchronous machine/control strategy/limitation curve分类
信息技术与安全科学引用本文复制引用
杨合民,简优宗,周洪涛,胡静,吴伟亮..静止变频器启动控制策略与限制曲线[J].电气传动,2019,49(8):3-6,4.基金项目
国家电网公司科技项目(SGTYHT/15-JS-191) (SGTYHT/15-JS-191)