发明名称 同步电动机的运行方法及运行系统
摘要 本发明公开了一种同步电动机的运行方法及运行系统。所述同步电动机的运行系统包括:控制器,提供电机电源,记录电机当前参数和接法;程序控制单元,接收所述控制器的信号,设定电机下一个接法;切换控制电路,包括多个与定子绕组连接的开关,根据程序控制单元的信号对开关进行选择性连接;编码器,接受控制器发出的指令进行相位调节。采用本发明所涉及的同步电动机的运行系统,可代替传统的异步电动机与变速箱的结合来进行调速。不仅可以达到上述目的,而且能精简机械设备的传动装置,并提高效率,节约成本,而且降低能耗。
申请公布号 CN102739134B 申请公布日期 2014.04.30
申请号 CN201110088448.X 申请日期 2011.04.08
申请人 北京索德电气工业有限公司 发明人 聂亚鹏;姜瑜;高晓燕;向守兵;唐晓琳
分类号 H02P6/08(2006.01)I 主分类号 H02P6/08(2006.01)I
代理机构 上海光华专利事务所 31219 代理人 王玮
主权项 1.一种同步电动机的运行方法,所述电动机包括多组三相定子绕组、程序控制单元和切换控制电路,其中在每相定子绕组上具有a条支路,在各支路上具有n个线圈,其特征是所述运行方法为:(1)当电机运行在功率输出恒定时,程序控制单元判断此时的定子绕组接法;(2)当定子绕组为星形连接时,程序控制单元通过切换控制电路改变接法,由星形接法转为三角形接法;当定子绕组为三角形连接时,程序控制单元通过切换控制电路改变接法,由三角形接法转为星形接法;使得转矩减小,具体为,当每相定子线圈数为2时,按照下表所述的状态从前一个接法转换到后一个接法:<tables num="0001"><table><tgroup cols="4"><colspec colname="c001" colwidth="25%" /><colspec colname="c002" colwidth="25%" /><colspec colname="c003" colwidth="25%" /><colspec colname="c004" colwidth="25%" /><tbody><row><entry morerows="1">状态</entry><entry morerows="1">1</entry><entry morerows="1">2</entry><entry morerows="1">3</entry></row><row><entry morerows="1">n</entry><entry morerows="1">2</entry><entry morerows="1">2</entry><entry morerows="1">1</entry></row><row><entry morerows="1">a</entry><entry morerows="1">1</entry><entry morerows="1">1</entry><entry morerows="1">2</entry></row><row><entry morerows="1">接法</entry><entry morerows="1">1Y</entry><entry morerows="1">1</entry><entry morerows="1">2Y</entry></row></tbody></tgroup></table></tables>当每相定子线圈数为16时,按照下表所述的状态从前一个接法转换到后一个接法:<tables num="0002"><table><tgroup cols="11"><colspec colname="c001" colwidth="9%" /><colspec colname="c002" colwidth="9%" /><colspec colname="c003" colwidth="9%" /><colspec colname="c004" colwidth="9%" /><colspec colname="c005" colwidth="9%" /><colspec colname="c006" colwidth="9%" /><colspec colname="c007" colwidth="9%" /><colspec colname="c008" colwidth="9%" /><colspec colname="c009" colwidth="9%" /><colspec colname="c010" colwidth="9%" /><colspec colname="c011" colwidth="9%" /><tbody><row><entry morerows="1">状态</entry><entry morerows="1">1</entry><entry morerows="1">2</entry><entry morerows="1">3</entry><entry morerows="1">4</entry><entry morerows="1">5</entry><entry morerows="1">6</entry><entry morerows="1">7</entry><entry morerows="1">8</entry><entry morerows="1">9</entry><entry morerows="1">10</entry></row><row><entry morerows="1">n</entry><entry morerows="1">16</entry><entry morerows="1">16</entry><entry morerows="1">8</entry><entry morerows="1">8</entry><entry morerows="1">4</entry><entry morerows="1">4</entry><entry morerows="1">2</entry><entry morerows="1">2</entry><entry morerows="1">1</entry><entry morerows="1">1</entry></row><row><entry morerows="1">a</entry><entry morerows="1">1</entry><entry morerows="1">1</entry><entry morerows="1">2</entry><entry morerows="1">2</entry><entry morerows="1">4</entry><entry morerows="1">4</entry><entry morerows="1">8</entry><entry morerows="1">8</entry><entry morerows="1">16</entry><entry morerows="1">16</entry></row><row><entry morerows="1">接法</entry><entry morerows="1">1Y</entry><entry morerows="1">1</entry><entry morerows="1">2Y</entry><entry morerows="1">2</entry><entry morerows="1">4Y</entry><entry morerows="1">4</entry><entry morerows="1">8Y</entry><entry morerows="1">8</entry><entry morerows="1">16Y</entry><entry morerows="1">16</entry></row></tbody></tgroup></table></tables>当每相定子线圈数为24时,按照下表所述的状态从前一个接法转换到后一个接法:<tables num="0003"><table><tgroup cols="11"><colspec colname="c001" colwidth="9%" /><colspec colname="c002" colwidth="9%" /><colspec colname="c003" colwidth="9%" /><colspec colname="c004" colwidth="9%" /><colspec colname="c005" colwidth="9%" /><colspec colname="c006" colwidth="9%" /><colspec colname="c007" colwidth="9%" /><colspec colname="c008" colwidth="9%" /><colspec colname="c009" colwidth="9%" /><colspec colname="c010" colwidth="9%" /><colspec colname="c011" colwidth="9%" /><tbody><row><entry morerows="1">状态</entry><entry morerows="1">1</entry><entry morerows="1">2</entry><entry morerows="1">3</entry><entry morerows="1">4</entry><entry morerows="1">5</entry><entry morerows="1">6</entry><entry morerows="1">7</entry><entry morerows="1">8</entry><entry morerows="1">9</entry><entry morerows="1">10</entry></row><row><entry morerows="1">n</entry><entry morerows="1">24</entry><entry morerows="1">24</entry><entry morerows="1">8</entry><entry morerows="1">8</entry><entry morerows="1">4</entry><entry morerows="1">4</entry><entry morerows="1">2</entry><entry morerows="1">2</entry><entry morerows="1">1</entry><entry morerows="1">1</entry></row><row><entry morerows="1">a</entry><entry morerows="1">1</entry><entry morerows="1">1</entry><entry morerows="1">3</entry><entry morerows="1">3</entry><entry morerows="1">6</entry><entry morerows="1">6</entry><entry morerows="1">12</entry><entry morerows="1">12</entry><entry morerows="1">24</entry><entry morerows="1">24</entry></row><row><entry morerows="1">接法</entry><entry morerows="1">1Y</entry><entry morerows="1">1</entry><entry morerows="1">3Y</entry><entry morerows="1">3</entry><entry morerows="1">6Y</entry><entry morerows="1">6</entry><entry morerows="1">12Y</entry><entry morerows="1">12</entry><entry morerows="1">24Y</entry><entry morerows="1">24</entry></row></tbody></tgroup></table></tables>(3)接法转变后等待下一次电机处于恒功率输出状态;(4)连续进行(1)至(3),以实现三角形接法和星形接法之间的连续转换。
地址 100055 北京市宣武区广安门南滨河路1号(高新大厦1305室)