TCR+FC型无功补偿技术在矿井提升系统中的应用

提升机是采矿企业广泛使用的大功率、高耗能的生产设备之一,矿井提升系统普遍采用电力电子器件构成的整流装置对其直流电机进行供电和控制。提升机在采矿过程中需要频繁地启动、停机,对电网的无功冲击和谐波污染使供电系统的安全稳定性受到严重影响。本文以国内某铅锌矿盲主井提升系统为研究对象,提出晶闸管控制电抗器(Thyristor Controlled Reactors,TCR)和固定电容器组(Fixed Capacitors,FC)相结合的无功补偿与谐波治理方法。针对提升机运行过程的特殊性和复杂性,给出无功补偿装置的具体电路设计、参数计算等的方法。提出的无功补偿与谐波治理技术对无功补偿装置的工程研究和开发提供一定的参考和指导,对提高电网的供电质量,保障矿井安全、稳定、高效生产具有十分重要的意义。

TCR+FC Type Reactive Power Compensation Technology in Mine Hoist System

Mine hoist is a high-power and high energy consuming facility which is widely used in many mining companies.Mine hoist system broadly employs the rectifier made of power electronic devices in managing the power supply of its DC motor.The constant opening and closing of the hoist in the process of mining often causes reactive power shock and harmonic pollution,which greatly affects the safety and stability of the power supply for the grid.The subject of this thesis is focusing on the hoist system of one Chinese lead and zinc mine and proposes a method combined with TCR（Thyristor Controlled Reactors） and FC（Fixed Capacitors） to deal with reactive power compensation and harmonic management.Focusing on the particularities and complexities of the mine hoist,this thesis comes up with a control calculating method based on the closed loop PI to realize controlling the reactive power device.The TCR＋FC type reactive compensation technology in this thesis offers some reference and guidance for the project research and design of the reactive power compensation device to some degree and will benefits the task of energy saving and emission reduction for the mining company.