公开(公告)号：US20160126739A1

公开(公告)日：2016-05-05

申请号：US14932609

申请日：2015-11-04

Applicant: NEC Laboratories America, Inc.

Inventor： Di Shi ,  Ratnesh Sharma

IPC: H02J3/28 ,  H02J3/38 ,  G01R31/36

CPC classification number: H02J3/383 ,  G01R31/3651 ,  H02J3/28 ,  H02J3/32 ,  H02J3/382 ,  H02J2003/007 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E60/76 ,  Y02E70/30 ,  Y04S40/22

Abstract: Systems and methods for voltage control in an energy distribution system (EDS), including measuring voltage and current at a node in the EDS where a Grid Energy Storage (GES) device is located. A simplified equivalent of the EDS is generated by identifying parameters for the equivalent and calculating phasors corresponding to the measured voltage and current. At least one of a voltage stability index or a voltage sensitivity factor of the EDS is calculated using the equivalent, and at least one of charging or discharging of the EDS is adjusted based on at least one of the voltage stability index or the voltage sensitivity factor to regulate and stabilize voltage of the EDS.

Abstract translation: 能量分配系统（EDS）中电压控制的系统和方法，包括测量电网能量存储（GES）设备所在EDS节点处的电压和电流。 EDS的简化等价物是通过识别等效的参数和计算与测量的电压和电流相对应的相量来产生的。 使用等效值计算EDS的电压稳定性指标或电压灵敏度因素中的至少一个，并且基于电压稳定性指数或电压敏感性因子中的至少一个来调整EDS的充电或放电中的至少一个 调节和稳定EDS的电压。

公开(公告)号：US20160093002A1

公开(公告)日：2016-03-31

申请号：US14845412

申请日：2015-09-04

Applicant: NEC Laboratories America, Inc.

Inventor： Rakesh Patil ,  Ratnesh Sharma ,  Soheil Eshghi

IPC: G06Q50/06

CPC classification number: G06Q50/06

Abstract: A method and system are provided for managing local energy resources of an energy system. The method includes determining, offline by a processor, an offline optimal resource allocation of the local energy resources using a Pontryagin Maximum Principle that involves a continuous, unbounded state. The method further includes determining, in real-time by the processor, a real-time optimal resource allocation of the local energy resources using offline-determined energy storage shadow pricing. The method also includes managing, by the processor, an allocation of the local energy resources in accordance with the offline optimal resource allocation and the real-time optimal resource allocation.

Abstract translation: 提供了一种用于管理能量系统的本地能源的方法和系统。 该方法包括使用涉及连续的无界状态的Pontryagin最大原理来确定处理器离线本地能量资源的离线最优资源分配。 该方法还包括使用离线确定的能量存储影子定价，实时地由处理器确定本地能量资源的实时最优资源分配。 该方法还包括由处理器根据离线最佳资源分配和实时最优资源分配来管理本地能量资源的分配。

公开(公告)号：US20160043550A1

公开(公告)日：2016-02-11

申请号：US14821115

申请日：2015-08-07

Applicant: NEC Laboratories America, Inc.

Inventor： Ratnesh Sharma ,  Di Shi ,  Babak Asghari ,  Rakesh Patil

IPC: H02J3/00 ,  G06Q30/02 ,  G05B13/04

CPC classification number: H02J3/00 ,  G05B13/041 ,  G06Q30/0206 ,  H02J3/383 ,  H02J7/35 ,  H02J2003/003 ,  H02J2003/007 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E60/76 ,  Y04S40/22 ,  Y04S50/14

Abstract: Systems and methods for energy distribution for one or more grid-scale Energy Storage Systems (ESSs), including generating one or more time series models to provide forecasted pricing data for one or more markets, determining battery life and degradation costs for one or more batteries in or more ESSs to provide battery life and degradation costs, optimizing bids for the one or more markets to generate optimal bids based on at least one of the forecasted pricing data or the battery life and degradation costs, and distributing energy to or from the one or more ESSs based on the optimal bids generated.

Abstract translation: 一种或多种电网规模能量存储系统（ESS）的能量分配系统和方法，包括生成一个或多个时间序列模型，为一个或多个市场提供预测的定价数据，确定一个或多个电池的电池寿命和降解成本 提供电池寿命和降解成本的一个或多个ESS中，优化一个或多个市场的出价，以根据预测的定价数据或电池寿命和退化成本中的至少一个产生最佳出价，并且向一个或多个市场分配能量 或更多的ESS基于生成的最佳出价。

公开(公告)号：US20160020628A1

公开(公告)日：2016-01-21

申请号：US14802564

申请日：2015-07-17

Applicant: NEC Laboratories America, Inc.

Inventor： Feng Guo ,  Ratnesh Sharma

IPC: H02J7/00 ,  H02M7/537

CPC classification number: H02J7/0065 ,  H02M7/483 ,  H02M7/537 ,  H02M2007/4835

Abstract: A modular multilevel converter for hybrid energy storage includes a battery. Three phases are connected in serial to the battery and in parallel to one another, each phase having two arms of sub-modules and buffer inductors. Each of the sub-modules includes a half-bridge and an ultracapacitor. A control module is configured to control the battery output power and ultracapacitor output power independently.

Abstract translation: 用于混合能量存储的模块化多电平转换器包括电池。 三相串联连接到电池并且彼此并联，每相具有两个子模块和缓冲电感器臂。 每个子模块包括半桥和超级电容器。 控制模块被配置为独立地控制电池输出功率和超级电容器输出功率。

公开(公告)号：US20150311713A1

公开(公告)日：2015-10-29

申请号：US14680848

申请日：2015-04-07

Applicant: NEC Laboratories America, Inc.

Inventor： Babak Asghari ,  Ratnesh Sharma ,  Ali Hooshmand

IPC: H02J3/00 ,  G05B15/02

CPC classification number: H02J3/00 ,  H02J2003/007 ,  Y02E60/76 ,  Y04S40/22

Abstract: Systems and methods are disclosed for providing service based interactions between a utility and a microgrid by adjusting power flow profile at a point of common coupling (PCC) between a microgrid and a utility, wherein the power flow profile is adjusted to achieve a predetermined objective function based on a utility request; delivering different services to the utility at different periods of time by altering its internal operation of distributed generators, energy storage units, and demands as a multi-purpose microgrid; and managing the microgrid to deliver services to the utility and reduce its operational cost simultaneously.

Abstract translation: 公开了用于通过在微电网和公用设施之间调整公共耦合点（PCC）处的功率流分布来提供公用设施和微电网之间的基于服务的相互作用的系统和方法，其中调整功率流分布以实现预定的目标函数 基于效用请求; 通过改变分布式发电机，储能装置的内部运行和作为多用途微电网的需求，在不同时期向公用事业提供不同的服务; 并管理微电网向公用事业提供服务，同时降低运营成本。

公开(公告)号：US20150295410A1

公开(公告)日：2015-10-15

申请号：US14681027

申请日：2015-04-07

Applicant: NEC Laboratories America, Inc.

Inventor： Ali Hooshmand ,  Ratnesh Sharma

IPC: H02J3/12

CPC classification number: G05B15/02 ,  G05B2219/2639 ,  G06Q10/04 ,  G06Q10/063 ,  G06Q50/06 ,  H02J3/12 ,  H02J3/382 ,  H02J7/34 ,  H02J2003/003 ,  Y04S10/54

Abstract: A method for power management includes applying a decentralized control to manage a large-scale community-level energy system; obtaining a global optimal solution satisfying constraints between the agents representing the energy system's devices as a state-based potential game with a multi-agent framework; independently optimizing each agent's output power while considering operational constraints and assuring a pure Nash equilibrium (NE), wherein a state space helps coordinating the agents' behavior in energy system to deal with system-wide constraints including supply demand balance, battery charging power constraint and satisfy system-wide and device-level (local) operational constraints; and controlling distributed generations (DGs) and storage devices using the agent's output.

Abstract translation: 电力管理的方法包括应用分散控制来管理大型社区一级的能源系统; 获得满足代表能量系统设备的代理之间的约束的全局最优解，作为具有多代理框架的基于状态的潜在游戏; 独立地优化每个代理的输出功率，同时考虑操作约束并确保纯粹的纳什均衡（NE），其中状态空间有助于协调代理在能量系统中的行为以处理系统范围的约束，包括供应需求平衡，电池充电功率约束和 满足系统范围和设备级（本地）操作限制; 并使用代理的输出来控制分布式代（DG）和存储设备。

公开(公告)号：US20150295407A1

公开(公告)日：2015-10-15

申请号：US14683397

申请日：2015-04-10

Applicant: NEC Laboratories America, Inc.

Inventor： Ali Hooshmand ,  Ratnesh Sharma ,  Ceyhun Eksin

IPC: H02J3/00 ,  G05B15/02

CPC classification number: G05B15/02 ,  G05B2219/2639 ,  G06Q10/04 ,  G06Q10/063 ,  G06Q50/06 ,  H02J3/12 ,  H02J3/382 ,  H02J7/34 ,  H02J2003/003

Abstract: A system to manage a power grid includes one or more storage and generator devices coupled to the power grid; and a decentralized management module to control the devices including: a module to perform decentralized local forecasts; and a module to perform decentralized device reconfiguration.

Abstract translation: 管理电网的系统包括耦合到电网的一个或多个存储和发电机设备; 以及控制设备的分散管理模块，包括：执行分散式本地预测的模块; 以及执行分散式设备重新配置的模块。

公开(公告)号：US20150268650A1

公开(公告)日：2015-09-24

申请号：US14531582

申请日：2014-11-03

Applicant: NEC Laboratories America, Inc.

Inventor： Rakesh Patil ,  Ratnesh Sharma ,  Cara Touretzky

IPC: G05B17/02 ,  G05F1/66

CPC classification number: G05B17/02 ,  G05B15/02 ,  G05B2219/2642

Abstract: A method and system are provided. The method includes generating a power model, modeling power demands of at least one of a building and subsystems thereof, responsive to measured power-related inputs specific to the building and forecasted power-related inputs. The method further includes controlling, by a processor-based supervisory controller, power consumption of at least one of the building and the subsystems responsive to the power demands modeled by the power model.

Abstract translation: 提供了一种方法和系统。 该方法包括产生功率模型，对建筑物及其子系统中的至少一个的功率需求进行建模，响应于测量的与建筑物相关的功率相关输入和预测的功率相关输入。 该方法还包括响应于由功率模型建模的功率需求，由基于处理器的监控控制器控制建筑物和子系统中的至少一个的功率消耗。

公开(公告)号：US20150268643A1

公开(公告)日：2015-09-24

申请号：US14150708

申请日：2014-01-08

Applicant: NEC Laboratories America, Inc.

Inventor： Rakesh Patil ,  Ratnesh Sharma

IPC: G05B13/02 ,  G05F1/66 ,  H01L31/04

CPC classification number: H02S10/00 ,  H02J3/32 ,  H02J3/38 ,  H02J3/382 ,  H02J2003/007 ,  Y02E60/76 ,  Y02E70/30 ,  Y04S40/22

Abstract: Systems and methods are disclosed to evaluate the impact of a constraint on the performance of the microgrid by receiving as input a set of solar power, load and grid cost conditions; applying dynamic programming to determine optimal battery dispatch and the imported grid power; and optimizing microgrid operation with a chosen constraint of interest.

Abstract translation: 公开了系统和方法，通过接收一组太阳能发电，负载和电网成本条件来评估约束对微电网性能的影响; 应用动态规划来确定最佳电池调度和进口电网功率; 并以所选择的约束条件优化微电网操作。

公开(公告)号：US20150142190A1

公开(公告)日：2015-05-21

申请号：US14292851

申请日：2014-05-31

Applicant: NEC Laboratories America, Inc.

Inventor： Yanzhu Ye ,  Ratnesh Sharma

IPC: G05F1/66 ,  G06N7/02 ,  G06N5/02 ,  G05B15/02

CPC classification number: G05F1/66 ,  G05B15/02 ,  G06N5/027 ,  G06N7/02 ,  H02J3/24 ,  H02J3/32 ,  H02J3/383 ,  H02J3/386 ,  H02J7/34 ,  H02J7/35 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E10/763 ,  Y02E10/766 ,  Y02E70/30 ,  Y10T307/367

Abstract: Systems and methods are disclosed to control a power system with an energy generator and a hybrid energy storage system. The system includes two or more energy storage system, each with different energy storage capacity and energy discharge capacity. The system includes developing data for one or more control variables refined from expert knowledge, trials and tests; providing the control variables to a fuzzy logic controller with a rule base and membership functions; and controlling the energy generator and the hybrid energy storage system using the fuzzy logic controller.

Abstract translation: 公开了系统和方法来控制具有能量发生器和混合能量存储系统的电力系统。 该系统包括两个或多个能量存储系统，每个能量存储系统具有不同的能量存储容量和能量放电容量。 该系统包括开发从专家知识，试验和测试中提炼的一个或多个控制变量的数据; 将控制变量提供给具有规则库和隶属函数的模糊逻辑控制器; 并使用模糊逻辑控制器控制能量发生器和混合能量存储系统。