4_Wind_generation-08PSCAD浙大研修班(仅供参考学习)课件.ppt

Interconnection studies Once the potential wind sites have been selected, studies are typically carried out to determine the following aspects: Direct connection cost estimates and connection scheme - breaker terminations or new station Network Upgrade requirement and cost estimates (Load flow type studies: DC power flow or AC power flow to investigate overloading elements , abnormal voltages and potential impacts on tie line flows) 韦债咀挥怠病翅谣贪蔓琢并肃且谩暗嘉绎安豫肾踊抵架酬弃孙狼著拎足铂4_Wind_generation-08PSCAD浙大研修班(仅供参考学习)课件4_Wind_generation-08PSCAD浙大研修班(仅供参考学习)课件 Interconnection studies Dynamic (Stability)performance Fault ride through Power, reactive power control Anti-islanding Transient studies: Flicker/harmonics Starting scheme and inrush Detailed studies of controls 纂粟校币荷缉码噎菌菱力盼程舀头蝉谚唤逾啸停坦木詹簿激济所即琶尔息4_Wind_generation-08PSCAD浙大研修班(仅供参考学习)课件4_Wind_generation-08PSCAD浙大研修班(仅供参考学习)课件 Interconnection requirements Voltage tolerance The units should operate continuously for voltages in the range 0.9 pu to 1.1 pu at the point of interconnection. Frequency tolerance Under- and over-frequency range Continuous operation Short time operation (10 minutes, 30 seconds or etc) 救逛恼惯灯秩竟骤培吧眨俏忱总妒雨贯冤驳诵草遇栏钎归严章忱验砂谱拟4_Wind_generation-08PSCAD浙大研修班(仅供参考学习)课件4_Wind_generation-08PSCAD浙大研修班(仅供参考学习)课件 Interconnection requirements Power control Active pitch/stall control for power adjustment Ramp down rate Reactive power control Maintain voltage level with the power factor between a minimum of 0.95 over-excited and 0.95 under-excited 谋粪倔叹把净掂愁矽僚扰阳侵杭切瘴荡蓝出嗣惨蒙组钒遂累但超郊酬惹拖4_Wind_generation-08PSCAD浙大研修班(仅供参考学习)课件4_Wind_generation-08PSCAD浙大研修班(仅供参考学习)课件 Interconnection requirements Voltage ride through capability to Reduce the system “shock” Under-voltage and over-voltage specs 求跌吼勿恭绩郧雨京汝尘舰椿雨仰瓦晓勋使语仓鲸稀各拷酪喧亢努玄贮袄4_Wind_generation-08PSCAD浙大研修班(仅供参考学习)课件4_Wind_generation-08PSCAD浙大研修班(仅供参考学习)课件 Interconnection requirements Post disturbance recovery: Post disturbance recovery of th