微型燃气轮机发电系统新型并网控制技术  

Novel grid-connected control tecnniques for the microturbine generation system

作　　者：赵克[1] 耿加民 孙力[1] 

机构地区：[1]哈尔滨工业大学电气工程系,黑龙江哈尔滨150001 [2]哈尔滨东安发动机集团公司,黑龙江哈尔滨150066

出　　处：《电机与控制学报》2008年第4期409-414,共6页Electric Machines and Control

基　　金：国家“863”项目(2002AA503020)

摘　　要：为了满足微型燃气轮机发电系统的并网要求,降低变换器的成本和提高可靠性,提出一种耦合虚拟磁链观测方案以解决磁链观测的偏置和启动电流突跳问题,获得了无电网电压传感器的虚拟磁链同步旋转坐标系统,设计了基于改进虚拟磁链观测器的直接功率控制策略的新型并网控制器。针对并网过程中的能量传输要求,进一步抑制发电机功率变化导致母线功率的传输波动,采用功率前馈的并网控制方案,改善了系统功率控制能力。仿真和实验结果表明,这种新型并网控制器能够稳定运行,能量传输具有快速性和稳定性。In order to meet grid-connected requirements for microturbine generation system, reduce the cost and improve the credibility of the grid inverter, the coupling virtual flux observe program was put forward to solve the problem of the flux estimation offset and start current breakout, the virtual flux synchronous coordinate system without the voltage sensor of the net side was established, new grid-connected inverter based on Direct Power Control （DPC） with improved estimation method was designed. In view of the requirement of power transmission and suppressing the power fluctuation from the generator, power feedforward strategy was proposed to increase the control capacity. The simulation and test results show that the inverter possesses good dynamic and static performance.

关 键 词：微型燃气轮机发电系统 并网 耦合虚拟磁链观测器 控制策略 功率前馈 

分 类 号：TM624[电气工程—电力系统及自动化]