为了解决高压大功率换流器谐波含量高、功率因数低和零电流关断(zero current switching,ZCS)问题,文中以7电平电流重注入换流器(seven level current reinjection current source converter,SLCR-CSC)为对象,研究其电流控制特性。通过...
supported by the National Natural Science Foundation of China(Grant Nos.12175037,11775050,11775118,11535005,and11865019);the Fundamental Research Funds for the Central Universities(Grant No.1107022104);the China Postdoctoral Science Foundation(Grant No.1107020201)。
Motivated by the recent discoveries of the hidden charm exotic state with strangeness by the BESⅢand LHCb Collaborations,we study the S-wave hidden bottom tetraquark with strangeness in two kinds of quark models.Both...