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1. 发明申请

US20150349528A1 WIND POWER BUNDLING CONTROL METHOD AFTER WIND POWER AND THERMAL POWER ARE CONNECTED TO GRID 有权
标题翻译：风力发电后的风力发电控制方法与电网连接
公开(公告)号：US20150349528A1
公开(公告)日：2015-12-03
申请号：US14649202
申请日：2014-04-16
申请人： STATE GRID CORPORATION OF CHINA , STATE GRID GANSU ELECTRIC POWER CORPORATION , GANSU ELECTRIC POWER CORPORATION WIND POWER TECHNOLOGY CENTER , NORTH CHINA ELECTRIC POWER UNIVERSITY
发明人： NINGBO WANG , WENYING LIU , YANHONG MA , JIAMING WANG , DAN JIN , CAI LIANG , SHIYUAN ZHOU , XIAODAN WU , KUN DING , ZILAN ZHAO , QIANG ZHOU , BIN YANG , JIN LI , PENG XU , LONG ZHAO , RUNDONG GE
IPC分类号： H02J3/00
CPC分类号： H02J3/00 , H02J3/386 , H02J3/46 , Y02E10/763 , Y10T307/549
摘要： The present invention has disclosed a wind power bundling control method after wind power and thermal power are connected to a power grid in the field of electric power system security technology, including regulating wind power output and thermal power output forward or backward; calculating the transient stability margin of the grid, load level index of element and voltage out-of-limit index of busbar after regulating wind power output and thermal power output respectively; calculating wind power/thermal power paying value according to the transient stability margin of the grid, load level index of element and voltage out-of-limit index of busbar after regulating wind power output and thermal power output; if wind power/thermal power paying value is larger than set threshold value, regulating wind power output and thermal power output backward/forward; if wind power/thermal power paying value is smaller than set threshold value, regulating wind power output and thermal power output forward/backward. The present invention provides a wind power bundling control method after wind power and thermal power are connected to the power grid to ensure reasonable output of wind power and thermal power, so as to guarantee the power grid operates normally.
摘要翻译：本发明公开了在电力系统安全技术领域将风力发电和火力发电与电力网连接的风力捆扎控制方法，包括调节风力发电输出和火力输出向前或向后; 分别调节风电输出和火力发电后，计算电网瞬态稳定裕度，母线负载电平指标和母线电压超限指标; 根据电网的瞬态稳定裕度计算风电/热功率支付值，调节风电输出和热功率输出后母线负载电平指标和母线电压超限指标; 如果风力/火电支付值大于设定阈值，则调整风电输出和火力输出向后/向前; 如果风力/火力支付值小于设定阈值，则调节风力发电输出和火力输出向前/向后。本发明提供了风力发电与火力发电连接在电网上的风力发电捆绑控制方法，以确保风电和火力的合理输出，保证电网运行正常。

2. 发明申请

US20150357818A1 OPTIMAL CONTROL METHOD FOR REACTIVE VOLTAGE OF WIND POWER AND PHOTOVOLTAIC POWER CENTRALIZED GRID CONNECTION 有权
标题翻译：风力发电和光伏电力中心网连接的反应电压优化控制方法
公开(公告)号：US20150357818A1
公开(公告)日：2015-12-10
申请号：US14655235
申请日：2014-04-18
申请人： STATE GRID CORPORATION OF CHINA , State Grid Gansu Electric Power Corporation , Gansu Electric Power Corporation Wind Power Technology Center , North China Electric Power University
发明人： NINGBO WANG , WENYING LIU , DAN JIN , JIAMING WANG , YANHONG MA , CAI LIANG , LONG ZHAO , YALONG LI , QIANG ZHOU , JING WEN , RONG HUANG , RUNDONG GE , JIN LI , PENG XU
IPC分类号： H02J3/16 , H02J3/38
CPC分类号： H02J3/16 , H02J3/38 , H02J3/383 , H02J3/386 , H02J13/0006 , Y02E10/563 , Y02E10/763 , Y02E40/34 , Y02E40/72 , Y02E60/723 , Y02E60/726 , Y04S10/123 , Y04S10/16 , Y04S10/24 , Y10T307/549
摘要： The present invention has disclosed an optimal control method for reactive voltage of wind power and photovoltaic power centralized grid connection in the field of wind power and photovoltaic power grid connection control technology, comprising: setting actuating stations used to control single wind power plant/photovoltaic power plant, setting substations used to control actuating stations and set master station used to control all the substations; master station calculates setting voltage reference Uref of each substation; adopting 3σ method to process set voltage reference Uref to obtain set voltage reference interval; regulating high-side voltage of substation to make it fall in set voltage reference interval; if high-side voltage of substation does not fall in set voltage reference interval, then regulating the equipment in wind power plant/photovoltaic power plant via actuating station. The present invention guides the actual operations of electric power system.
摘要翻译：本发明公开了风力发电和光伏并网电网连接控制技术领域风电和光伏并网电力无功电压的最优控制方法，包括：设置用于控制单一风力发电厂/光伏发电的执行站工厂，设置变电站用于控制执行站，并设置用于控制所有变电站的主站; 主站计算每个变电站的设定电压参考Uref; 采用3＆方法处理设定电压参考Uref以获得设定电压参考间隔; 调整变电站的高侧电压使其落在设定电压基准间隔内; 如果变电站的高侧电压没有落在设定的电压参考区间内，则通过启动站调节风力发电厂/光伏电站的设备。本发明指导电力系统的实际操作。

3. 发明申请

US20150318697A1 A METHOD FOR IMPROVING SMALL DISTURBANCE STABILITY AFTER DOUBLE-FED UNIT GETS ACCESS TO THE SYSTEM 有权
标题翻译：双层单元访问系统后改善小干扰稳定性的方法
公开(公告)号：US20150318697A1
公开(公告)日：2015-11-05
申请号：US14649532
申请日：2014-03-28
申请人： GANSU ELECTRIC POWER CORPORATION WIND POWER TECHNOLOGY CENTER
发明人： NINGBO WANG , CHONGRU LIU , LONG ZHAO , YI DING , ZHONGYI LIU , YANHONG MA , DAN WANG , DAN JIN , WENYING LIU , SHIYUAN ZHOU , KUN DING , QIANG ZHOU , JIN LI
IPC分类号： H02J3/00 , G05B13/04 , G06F17/16
CPC分类号： H02J3/00 , G05B13/04 , G06F17/16
摘要： A method for improving system small disturbance stability after double-fed unit gets access to the system belongs to the field of electric power system operation and control technology. A sensitivity analysis is adopted to optimize parameter, through making sensitivity analysis on the non-ideal dominant mode happens to the system to find out several nonzero elements that are most sensitive to this mode in system matrix; elements of state matrix is adopted to replace the elements of system matrix to make analysis so as to find out the most relevant parameter set; setting parameters change in the interval to observe track for the change of eigenvalues of corresponding mode and then balancing and optimizing system parameters comprehensively according to the change of eigenvalues. Without adding other control means, the present invention can improve dominant modal damping caused by selecting improper controller parameters or system parameters after double-fed unit gets access to the system without increasing cost; as this method is also highly targeted, exhaustive efforts for all the adjustable parameters of the system can be avoided, which not only greatly decreases workload, but also improves computational efficiency, so that it is very instructive.
摘要翻译：双馈单元进入系统后，提高系统小扰动稳定性的方法属于电力系统运行和控制技术领域。采用灵敏度分析优化参数，通过对系统发生非理想主导模式的敏感性分析，发现系统矩阵中对这种模式最敏感的几个非零元素; 采用状态矩阵的元素来代替系统矩阵的元素进行分析，找出最相关的参数集; 设置参数间隔变化，观察相应模式特征值变化的轨迹，然后根据特征值的变化，全面平衡和优化系统参数。在不增加其他控制手段的情况下，本发明可以改善在双馈单元进入系统之后选择不正确的控制器参数或系统参数导致的主要模态阻尼，而不增加成本; 由于这种方法也具有很高的针对性，因此可以避免系统所有可调整参数的全面努力，不仅大大降低了工作量，而且提高了计算效率，从而使其具有很大的指导意义。

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