Distributed energy storage control method for electric energy quality management
A distributed energy storage and power quality technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of poor communication infrastructure, lack of interconnection and high cost of energy storage system operation control in the station area, etc.
Active Publication Date: 2021-06-29
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology
Due to the poor communication infrastructure in the low-voltage distribution station area, it is difficult to establish a data monitoring network covering the entire distribution station area, and the cost is relatively high
At present, the development trend of smart distribution stations is to configure smart meters, smart switches, and low-voltage loop measurement and control terminals. These smart devices are the underlying support equipment for the Internet of Things. Usually, the multi-point operating state of the station is realized based on the power broadband carrier. Real-time monitoring, but these data are often lack of interconnection with the operation control of the energy storage system in the station area
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[0023] In order to make the objects, technical solutions, and advantages of the present application, the technical solutions in the present application embodiment will be described in contemplated in the present application embodiment, which will be described in contemplation in the present application embodiment. It is an embodiment of the present application, not all of the embodiments.
[0024] Such as figure 1 As shown, the energy storage system of the present embodiment is mounted in the first end of the low voltage side, and the transfer of low-voltage output bus is connected by AC cable. Intelligent area monitoring device, low voltage loop measurement and control terminal, intelligent circuit breaker, etc. is the main monitoring device for current low-voltage distribution network applications. The smart circuit breaker enables full-line monitoring, control and protection of low voltage lines, can collect three-phase voltage and current data of the mount point, and transmit ...
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The invention provides a distributed energy storage control method for electric energy quality management. According to the method, a timing peak clipping and valley filling plan curve is read, an energy storage system compensation active value and an energy storage system compensation reactive value are calculated, and if yes, a composite logic control strategy is executed so that the energy storage system can achieve peak clipping and valley filling and electric energy quality management at the same time. According to the method, the energy storage system arranged at the head end of the transformer area is not limited by the access point bit value any more, the power flow distribution of the transformer area is changed by adjusting the output of the energy storage system, and the operation state of the whole transformer area is regulated and controlled.
Description
Technical field [0001] The present invention relates to the field of power grid distribution, and more particularly to a distributed energy storage control method for power quality governance. Background technique [0002] The energy storage is a key support technology and an important part of the "Clean Low Carbon, Safe Efficient" Energy System. Under the background of energy cleaning transformation, the high-quality development of distribution network faces high power supply reliability, high asset utilization, high proportion of renewable energy access, high-tech, charge load, etc., although the investment of distribution network increased year by year, but partial The weak problem of distribution network is generally, periodic and short-term power supply capacity, high reliability, and power quality problems are still the focus of user complaints. As an emerging technical means, the energy storage system is penetrating the distribution network, delaying the spreading facility...
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IPC IPC(8): H02J3/38H02J3/32H02J3/26H02J3/18H02J3/46H02J13/00
CPCH02J3/381H02J3/32H02J3/26H02J3/18H02J3/466H02J13/00002H02J13/00017H02J13/00022H02J2203/20H02J2300/40Y04S10/12Y04S10/22Y04S10/14Y04S10/52Y04S40/124Y04S40/126Y02E40/30Y02E40/50Y02E40/70Y02E60/00
Inventor 易斌赵伟邓凯钟国彬梁崇淦王伟
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID