专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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。

2. 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。

3. 发明申请

US20160161538A1 METHOD FOR TESTING DYNAMIC MODEL PARAMETERS OF WIND POWER PLANT 有权
标题翻译：测试风力发电厂动态模型参数的方法
公开(公告)号：US20160161538A1
公开(公告)日：2016-06-09
申请号：US14905279
申请日：2014-04-02
申请人： STATE GRID CORPORATION OF CHINA , STATE GRID GANSU ELECTRIC POWER CORPORATION , GANSU ELECTRIC POWER CORPORATION WIND POWER TECHNOLOGY CENTER
发明人： NINGBO WANG , LIANG LU , DUO WANG , SHIYUAN ZHOU , YUHONG ZHANG , KUN DING , DAN JIN , LONG ZHAO , SHIEN HE , XUSHAN HAN , YANHONG MA , QIANG ZHOU , DINGMEI WANG , HONGQUAN XU , GUANGTU LIU , XIAOYONG WANG , JIN LI , MING MA , JINPING ZHANG , RONG HUANG , QINGQUAN LV , JIANMEI ZHANG
IPC分类号： G01R21/133 , G01R21/00
CPC分类号： G01R21/1331 , G01R21/003 , G06F11/26 , G06F17/5009
摘要： The present invention discloses a testing method for dynamic model parameters of a wind power plant, wherein under testing conditions including stable running of wind turbine generators and reactive-load compensation equipment, stable wind speed between a cut-in wind speed and a rated wind speed, and the wind power plant output smaller than a rated output, finishes a wind speed transient disturbance test, a wind power plant unit tripping and inputting disturbance test, a wind power plant power change test, a disturbance test for reactive-load compensation equipment of the wind power plant, a tripping disturbance test for hydroelectric power plant and thermal power plant near the wind power plant and a manual single-phase ground short circuit test at the outgoing line part of the wind power plant, and records running curves of the wind power plant under each condition to finish the parameter test. The present invention realizes the advantage of providing precise measurement data for the stability analysis of an electric power system and the production dispatching of a power grid.
摘要翻译：本发明公开了一种风力发电厂动态模型参数测试方法，其中在风力发电机和无功负载补偿设备稳定运行的试验条件下，切入风速与额定风速之间的风速稳定，风电厂输出小于额定输出，完成风速瞬态干扰试验，风力发电厂单元跳闸和输入干扰试验，风力发电厂电力变化试验，无功负载补偿装置干扰试验风力发电厂，风力发电厂附近水力发电厂和火力发电厂的跳闸干扰试验以及风力发电厂出线部分的手动单相接地短路试验，记录风力运行曲线每个条件下的发电厂完成参数测试。本发明实现了为电力系统的稳定性分析和电网的生产调度提供精确的测量数据的优点。

4. 发明申请

US20160092622A1 METHOD FOR MODELING MEDIUM AND LONG TERM WIND POWER OUTPUT MODEL OF MEDIUM AND LONG TERM OPTIMAL OPERATIONOF POWER SYSTEM 审中-公开
标题翻译：中长期电力系统中长期电力输出模型及长期最佳运行方法
公开(公告)号：US20160092622A1
公开(公告)日：2016-03-31
申请号：US14893012
申请日：2014-04-02
申请人： STATE GRID CORPORATION OF CHINA , STATE GRID GANSU ELECTRIC POWER CORPORATION , GANSU ELECTRIC POWER CORPORATION WIND POWER TECHNOLOGY CENTER
发明人： NINGBO WANG , MING MA , YANHONG MA , GUANGTU LIU , LONG ZHAO , QIANG ZHOU , DINGMEI WANG , LIANG LU , JIANMEI ZHANG , QINGQUAN LV
IPC分类号： G06F17/50
CPC分类号： G06F17/5009 , H02J3/386 , Y02E10/763
摘要： Disclosed is a method for modeling a medium and long term wind power output model optimally operating in a medium and long term in a power system. By calculating the wind power output of the power system during daily peak time period, daily valley time period, and daily shoulder load time period, and optimizing wind power output data during the daily shoulder load time period, the capacity substitute benefit of wind power generation is rationally taken into account, the operation reliability level of the power system is guaranteed, the bidirectional peak regulation characteristic of wind power output is considered, the peak regulation balance of the power system is guaranteed, the benefits of energy conservation and emission reduction of wind power resources are fully exerted, the highest utilization rate of the wind power generation capacity is guaranteed, the feature of low wind power schedulability is fully taken into account, the randomness and volatility of wind power output are correctly simulated, the practical situation of a simulation project optimally operating in a medium and long term in the power system is met, and the purpose of better calculating the randomness, the volatility, the regionalism and bidirectional peak regulation performance of wind power generation and a correlation between same and loads is achieved.
摘要翻译：公开了一种在电力系统中对在中长期内最佳运行的中长期风力发电输出模型进行建模的方法。通过计算每日高峰时段，日谷时间，日肩负荷时段内电力系统的风力发电量，并优化日负荷期间风力发电量数据，风力发电的能力替代效益合理考虑电力系统的运行可靠性水平，考虑风电输出的双向峰值调节特性，保证电力系统的峰值调节平衡，风力发电节能减排的效益充分发挥电力资源，保证风力发电能力利用率最高，充分考虑了风电调度能力低的特点，正确模拟了风力发电的随机性和波动性，模拟实际情况在电力系统中中长期运行的项目得到满足，t 他的目的是更好地计算风力发电的随机性，波动性，区域主义和双向峰值调节性能以及相同和负载之间的相关性。

5. 发明申请

US20150302332A1 MAINTENANCE SCHEDULE OPTIMIZATION METHOD FOR ELECTRIC POWER SYSTEM INCLUDING LARGE-SCALE WIND POWER 审中-公开
标题翻译：包括大规模风力发电系统的电力系统维护计划优化方法
公开(公告)号：US20150302332A1
公开(公告)日：2015-10-22
申请号：US14648249
申请日：2014-04-02
申请人： STATE GRID CORPORATION OF CHINA , STATE GRID ELECTRIC POWER CORPORATION , GANSU ELECTRIC POWER CORPORATION WIND POWER TECHNOLOGY CENTER
发明人： NINGBO WANG , MING MA , YANHONG MA , GUANGTU LIU , LONG ZHAO , QIANG ZHOU , DINGMEI WANG , LIANG LU , JIANMEI ZHANG , QINGQUAN LV
IPC分类号： G06Q10/06 , G06Q50/06 , G06Q10/00
CPC分类号： G06Q10/06312 , F03D80/50 , F05B2270/20 , G06Q10/20 , G06Q50/06 , Y02E10/72 , Y02E40/76 , Y04S10/54 , Y04S10/545
摘要： The present invention discloses a maintenance schedule optimization method for an electric power system including large-scale wind power to build objective function to make it get optimal results, then constrain the objective function, constraint conditions include: constrain according to maintenance natural environment; constrain according to maintenance time of wind power plant; constrain according to maintenance site of wind power plant; constrain according to system reliability at wind power plant; constrain according to maintenance continuity of generator unit. Under the above constraint conditions, the electric power system is modeled with heuristic algorithm according to the above objective function. Through modeling the electric power system including large-scale wind power, optimize maintenance time of wind turbines in electric power system through modeling under a certain constraint conditions to maintain the wind power equipment properly while ensuring maximum efficiency of wind power generation at the same time.
摘要翻译：本发明公开了一种包含大型风力发电系统的电力系统的维护计划优化方法，构建目标函数，使其获得最佳效果，约束目标函数，约束条件包括：根据维护自然环境约束; 根据风电厂的维护时间约束; 根据风力发电厂的维修点约束; 根据风力发电厂的系统可靠性制约; 根据发电机组的维护连续性约束。在上述约束条件下，根据上述目标函数，利用启发式算法对电力系统进行建模。通过对包括大型风电在内的电力系统进行建模，通过在一定的约束条件下建模，优化电力系统风力发电机组的维护时间，保证风力发电设备的正常运行，同时确保风力发电的最大效益。

6. 发明申请

US20160169202A1 SHORT-TERM OPERATION OPTIMIZATION METHOD OF ELECTRIC POWER SYSTEM INCLUDING LARGE-SCALE WIND POWER 审中-公开
标题翻译：包括大规模风力发电系统的电力系统短期运行优化方法
公开(公告)号：US20160169202A1
公开(公告)日：2016-06-16
申请号：US14648663
申请日：2014-04-02
申请人： STATE GRID CORPORATION OF CHINA , STATE GRID GANSU ELECTRIC POWER CORPORATION , GANSU ELECTRIC POWR CORPORATION WIND POWER TECHNOLOGY CENTER
发明人： NINGBO WANG , MING MA , YANHONG MA , GUANGTU LIU , LONG ZHAO , QIANG ZHOU , DINGMEI WANG , LIANG LU , JIANMEI ZHANG , QINGQUAN LV
IPC分类号： F03D9/00 , F03D7/00
CPC分类号： F03D7/028 , F03D7/00 , F03D9/255 , F03D17/00 , F05B2260/821 , F05B2270/1033 , F05B2270/335 , H02J3/386 , Y02E10/723 , Y02E10/763
摘要： The present invention discloses a short-term operation optimization method for a power system including large-scale wind power, comprising modeling the randomness of wind power output, modeling the randomness of the load of electric power system and modeling net load of electric power system. Net load refers that for probability distribution of net load that is too discretized, probability distribution curve of net load is divided into N intervals, the probabilities for each interval are obtained and probability distribution curve of net load is obtained through calculating and weighing each interval. Through calculating randomness of power wind output and standard deviation of load prediction error of the electric power system, net load prediction error of the electric power system is obtained and reasonable coordination is made on the electric power system according to prediction error and prediction amount to better regulate the correlations between randomness, volatility, regionalism, double-circuit peak shaving and load of wind power generation, so as to realize optimization operation of the electric power system.
摘要翻译：本发明公开了一种包括大型风力发电的电力系统的短期运行优化方法，包括对风力发电输出随机性进行建模，建立电力系统负荷随机性和电力系统建模净负荷。净负荷是指对于太离散的净负荷概率分布，将净负荷概率分布曲线分为N个间隔，通过每个间隔的计算和称量获得每个间隔的概率，并获得净负荷的概率分布曲线。通过计算电力输出的随机性和电力系统负荷预测误差的标准偏差，得到电力系统的净负荷预测误差，并根据预测误差和预测值对电力系统进行合理的协调调整随机性，波动性，区域性，双回路峰值风化与风力发电负荷之间的相关性，实现电力系统的优化运行。

7. 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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式