Description
— CROSS-REFERENCE TO RELATED APPLICATION :
This application is a divisional under 35 U.S.C. §121 of co-pending U.S. application Ser. No. 10/972,508, filed Oct. 25, 2004, which claims the benefit of U.S. Provisional Application Ser, No. 60/513, 962, filed Oct. 24, 2003.
— FIELD OF THE INVENTION :
This invention is directed generally to power management control systems, and more particularly, to an intelligent power management control system.
— BACKGROUND OF THE INVENTION :
Circuit breakers have long been used in industrial and residential applications to prevent damage to the loads connected to them and the building structures in which the loads are located. Normally, when an electrical fault or a current overload condition is sensed in a particular circuit, the breaker protecting that circuit "trips" and creates a physical disconnect in the circuit, thereby preventing the flow of electricity. To resume electrical flow to the circuit, the operator must physically reconnect the circuit breaker, typically by throwing a mechanical switch back to a closed position. These detection systems work automatically, tripping circuits only when certain conditions are satisfied.
However, an energy supplier or consumer may want to control energy flow deliberately to certain loads or circuits at such times as are desired, even when no fault or overload condition is detected. To do so, some way of remotely controlling the connections across the loads must be provided. But in the case of power line communication techniques, communication with any devices on the load side of the circuit breaker cannot occur if it has been tripped or if the electrical contacts inside the circuit breaker are otherwise separated. Thus, as soon as a circuit breaker trips, no further data can be collected on electrical devices connected to that circuit breaker nor can any further instructions be transmitted to change the behavior of the connected electrical devices. There is therefore a need to maintain the communication link from the utility or line side of the circuit breaker to the load side of the circuit breaker even when the circuit breaker has physically disconnected the branch circuit.
Another related need involves managing the loads or electrical devices connected to circuit breakers within a home or other facility in a way that is flexible and adaptable to both the homeowner and the power company. Homes typically can obtain their power from various sources, such as the power company, a backup generator, or an alternative power source like solar power arrays. Electrical devices (referred to as loads) within the home draw varying levels of electrical power at different times of the day and at different times of the year. Furthermore, electrical devices can be categorized and prioritized based on their consumption behavior (some loads cycle on and off throughout the day, other loads draw lots of power when they turn on) and importance (a life-saving medical device would be more critical than a swimming pool motor). For example, an oven can be used year-round and most frequently around dinnertime. An air conditioning unit can be used heavily during the summer months and not at all during the winter months. Data on the usage and properties of these and other electrical devices throughout the home can be collected over a period of time to create a set of historical data that reflects the usage patterns, usage frequency, usage levels of each device, and other properties about the electrical device.
During peak times in the summer months, the power company may wish to limit or reduce peak power consumption. Other emergency situations may call for a reduction or change in power consumption, such as adverse weather conditions or utility equipment failure. One approach to reducing power consumption is to initiate rolling blackouts, but this inconveniences homeowners and renders entire neighborhoods without power. What is needed, therefore, is an adaptive load management algorithm that overcomes these and other disadvantages. The present invention addresses this and other needs, as more fully described below.
— SUMMARY OF THE INVENTION :
Briefly, according to an embodiment of the present invention, an intelligent power load management and control system and method and an adaptive load management algorithm are described and shown. The system generally includes a circuit breaker that has a communications interface (specifically a PLC module in some embodiments) that spans the open contacts across the line and load sides of a circuit such that the communications interface can still communicate even when the circuit breaker is tripped or the contacts are otherwise in an open position. The communications interface can be adapted to interface messages compatible with PLC, Ethernet, RS-45, or wireless schemes. The circuit breaker can further include a DC voltage supply to supply power to the circuit breaker components in the event of a trip even
描述— — 对相关应用的交叉引用 ︰此应用程序是分区下 35 u.s.c.§121 co 之前美国应用的系列号 10/972,508,提交 2004 年 10 月 25 日,号称美国临时应用爵士,号 60/513,962,提交 2003 年 10 月 24 日的好处。— — 本发明的领域 ︰本发明一般电源管理控制系统,和更特别的是,智能电源管理控制系统。— — 本发明的背景 ︰长,我们在工业及住宅的应用程序中使用断路器以防止损坏连接到他们和载荷位于建筑结构的荷载。通常情况下,当电气故障或过载现状遥感在特定的电路断路器保护的电路"的行程"并创建一个物理断开连接在电路中,从而防止电力流动。若要恢复到电路的电流量,操作员必须身体通过重新连接电路断路器,通常把机械开关扔回关闭的位置。这些检测系统自动工作,跳闸电路,只有当某些条件得到满足。然而,能源供应商或消费者可能想要控制故意向某些荷载作用下的能量流或电路在这样的时刻,期望,即使没有故障或过载条件检测。要这样做,必须提供某种方式的远程控制连接跨荷载。但在电源线通信技术,通信与负荷侧上的任何设备的断路器不能发生如果它已被绊倒或内部电路断路器的电气触点被与之分离。因此,尽快电路断路器的行程,没有进一步的数据可以收集关于电气设备连接到断路器,也可以传输任何进一步的指示更改连接的电气设备的行为。因此,需要保持从实用程序或断路器的线路侧到断路器的负荷侧的通信链接,甚至当断路器物理上断开连接分支电路是。Another related need involves managing the loads or electrical devices connected to circuit breakers within a home or other facility in a way that is flexible and adaptable to both the homeowner and the power company. Homes typically can obtain their power from various sources, such as the power company, a backup generator, or an alternative power source like solar power arrays. Electrical devices (referred to as loads) within the home draw varying levels of electrical power at different times of the day and at different times of the year. Furthermore, electrical devices can be categorized and prioritized based on their consumption behavior (some loads cycle on and off throughout the day, other loads draw lots of power when they turn on) and importance (a life-saving medical device would be more critical than a swimming pool motor). For example, an oven can be used year-round and most frequently around dinnertime. An air conditioning unit can be used heavily during the summer months and not at all during the winter months. Data on the usage and properties of these and other electrical devices throughout the home can be collected over a period of time to create a set of historical data that reflects the usage patterns, usage frequency, usage levels of each device, and other properties about the electrical device.During peak times in the summer months, the power company may wish to limit or reduce peak power consumption. Other emergency situations may call for a reduction or change in power consumption, such as adverse weather conditions or utility equipment failure. One approach to reducing power consumption is to initiate rolling blackouts, but this inconveniences homeowners and renders entire neighborhoods without power. What is needed, therefore, is an adaptive load management algorithm that overcomes these and other disadvantages. The present invention addresses this and other needs, as more fully described below.— SUMMARY OF THE INVENTION :Briefly, according to an embodiment of the present invention, an intelligent power load management and control system and method and an adaptive load management algorithm are described and shown. The system generally includes a circuit breaker that has a communications interface (specifically a PLC module in some embodiments) that spans the open contacts across the line and load sides of a circuit such that the communications interface can still communicate even when the circuit breaker is tripped or the contacts are otherwise in an open position. The communications interface can be adapted to interface messages compatible with PLC, Ethernet, RS-45, or wireless schemes. The circuit breaker can further include a DC voltage supply to supply power to the circuit breaker components in the event of a trip even
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