CONTROLLING DISTRIBUTION OF ELECTRICAL POWER

• US 20100204851A1
• Filed: 07/17/2008
• Published: 08/12/2010
• Est. Priority Date: 07/30/2007
• Status: Active Grant

• Current Assignee: Hitachi Energy Limited
• Original Assignee: ABB Research Ltd. (ABB Ltd.)
• Inventors: Larsson, Mats, Paice, Andrew, Frei, Christian, Yuen, Cherry
• Granted Patent: US 8,543,246 B2
• Time in Patent Office: Days
• US Class Current: 700/297
• CPC Class Codes: H02J 13/00017 using optical fiber
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: H02J 3/06 Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
• CPC Class Codes: H02J 3/1878 using tap changing or phase shifting transformers
• CPC Class Codes: Y02E 40/30 Reactive power compensation
• CPC Class Codes: Y02E 40/70 Smart grids as climate change mitigation technology in the energy generation sector
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 10/16 Electric power substations
• CPC Class Codes: Y04S 10/22 Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
• CPC Class Codes: Y04S 10/50 Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
• CPC Class Codes: Y04S 40/124 using wired telecommunication networks or data transmission busses

Abstract

The present disclosure is concerned with controlling distributing of electrical power in a power distribution region. To effectively control the distribution of power in the distribution region, the substation of the region is provided with a distribution controller or Intelligent Substation Control System (ISCS). The distribution controller is connected to various process devices, which in turn are connected to primary devices of the region. The process devices send data corresponding to the primary devices to the distribution controller, and the distribution controller includes a processor which proposes a set of actions based on the received data. Further, the distribution controller includes a coordinating device which selects the final action from the set of proposed actions. The final action is implemented on the primary devices of the distribution region.

Claims

1. A distribution controller for controlling a distribution of electrical power in a first power distribution region, wherein the controller comprises:

processing means for processing data from process devices connected to the controller, and for proposing actions related to a primary device of the first power distribution region; and

coordinating means for coordinating the proposed actions.

2. The distribution controller according to claim 1, wherein the coordinating means are adapted to coordinate the proposed actions based on a prioritizing or ranking order.

3. The distribution controller according to claim 2, wherein the prioritizing or ranking order is based on an operating history of the primary device.

4. The distribution controller according to claim 2, wherein the prioritizing or ranking order takes into account at least one of a type and amplitude of a constraint violation causing the proposed actions.

5. The distribution controller according to claim 1, configured as a first distribution controller adapted to communicate with a second distribution controller assigned to a second region, and wherein at least one of the following exists:

the coordinating means is adapted to coordinate actions related to the primary device of the first region and proposed by at least one of the processing means of the first distribution controller and a processing means of the second distribution controller; and

the coordinating means is adapted to coordinate proposed actions based on decision-supporting input from the second distribution controller.

6. The distribution controller according to claim 1, wherein it is a first distribution controller and adapted to communicate with a second distribution controller assigned to a second region, and wherein the first distribution controller is adapted to communicate with a process device connected to the second controller.

8. The method according to claim 6, comprising:

communicating between the first and second distribution controllers via a dedicated link or via a Network Control Centre (NCC) of the power distribution system.

7. A method of controlling distribution of electrical power over a power distribution system comprising first and second distribution regions and first and second distribution controllers connected to process devices which in turn interact with primary devices in the respective distribution region, the method comprising:

deriving, by a processing means of a first distribution controller and based on data from process devices connected to the first distribution controller, actions related to a primary device of the assigned first region; and

coordinating, by a coordinating means of the first distribution controller, the actions based on input from the second distribution controller.