Design And Application Of Energy Meter Centralized Control System In Hegang Rural Power Grid

With the development of automatic control and electric energy acquisition technology, the traditional electronic watt-hour meter is gradually replaced by smart meter and the way of artificial meter reading is also gradually replaced by electricity information collection system. But in many rural power networks, they still have most of the old electric meter that failed to update. They cannot realize the remote control by the automatic control system. In addition, the objective reality is that most of rural power network in Hegang is remote area, power supply range is big, supply network loss and operation maintenance cost remains high, operating condition has been slim margins, and even individual units to make ends meet, the huge funding gap of a wide range of the overall reform has become the insurmountable barrier of this work. To solve these problems and help us to make a set of new feasible retrofit scheme adjusting to local conditions:replace the remote meter reading of the local users, equip each meter reading with a valve control device, install of each table box with a controller, erect each area with a controller, so in the realization of the function of meter reading at the same time, the function of valve control can be also attached. The main research work of this thesis is as follows:1. Under the condition of existing network infrastructure, with the minimum cost of upgrading, design a meter reading centralized control system scheme, integrate with electric energy meter reading acquisition, valve control system, meter remote meter reading, the functions of cut and send management, which can be related to electric power customer electricity data index 24-hour cycle of real-time monitoring and recording2. Through the study on the existing basic theory and technology, such as:meter reading technology, communication mode, smart meters, etc. At the same time, according to the requirements of the meter reading centralized control system function, design the valve controller of centralized control system, the controller and valve control concentrator unit hardware and communication protocol in detail.On the one hand, a new idea of the measurement updating work in rural power network is proposed. On the other hand, a new way to upgrade service for a large number of watt-hour meter of the original power supply enterprises is proposed, which only have meter reading function, without the function of valve control. Moreover, they can avoid the fate of being eliminated directly and the repeated costs during upgrading revolution. This research work creates the huge economic benefit, management benefit and social benefit indirectly.