With the development of The Times, most of the current electricity meters are slowly replacing the traditional electricity meters with a more functional electricity meters, which are also called smart electricity meters. Smart electricity meter is one of the basic equipment of data acquisition in smart power grid (especially smart distribution network).  Along with the emergence of The Times, for the people and enterprises caused a great help. What are the functions and benefits of smart electricity meters?

I. What are the functions of smart electricity meters?  

1. Settlement and accounts  

Smart electricity meters can realize accurate and real-time expense settlement information processing, simplifying the complex process of accounting processing in the past.  In the electricity market environment,  

Dispatchers will be able to switch energy retailers more quickly and easily, and in the future, even fully automated.  At the same time, users can obtain more accurate and timely energy consumption information and accounting information.   

2. Distribution network state estimation  

The information of power flow distribution on the distribution network side is not accurate, mainly because it is obtained from the comprehensive processing of network model, load estimate and measurement information on the high voltage side of the substation. By adding measurement nodes on the user side, more accurate load and network loss information can be obtained to avoid overload and power quality deterioration of power equipment.  By combining a large number of measurements, It can realize the prediction of unknown state and check the accuracy of measurement data.   

3. Monitor power quality and power supply reliability  

Smart meters can monitor power quality and power supply status in real time, so as to timely and accurately respond to user complaints, and take measures to prevent power quality problems in advance. The traditional power quality analysis method has a gap in real-time and validity.   

4. Energy efficiency monitoring and management  

By feeding back the energy consumption information provided by smart meters to users, users can be encouraged to reduce energy consumption or change the way of energy use.  For homes equipped with distributed generation, It can also provide reasonable power generation and power consumption schemes for users to maximize their interests.   

5. User power management   

Based on the information provided by smart electricity meters, user energy management systems can be built on them, thus providing energy management services for different users (residential users, commercial users, industrial users, etc.). While meeting indoor environmental controls (temperature, humidity, lighting, etc.), the goal of reducing emissions is achieved by minimizing energy consumption.  

6. Energy saving   

Real-time energy consumption data is provided to facilitate users to adjust their power consumption habits and timely detect abnormal energy consumption caused by equipment failures.  Based on the technology provided by smart meters,  

Power companies, equipment suppliers and other market participants can offer customers new products and services, such as different types of time-sharing network tariffs, power contracts with buybacks,  

Spot price power contracts, etc.   

7. Smart home   

A smart home is a network of different devices, machines and other energy-consuming devices in a home that can be controlled according to the needs and behaviors of residents, outdoor temperature and other parameters.  

It can realize the interconnection of heating, alarm, lighting, ventilation and other systems, so as to realize the remote control of home automation and appliances and other equipment.   

8. Preventive maintenance and fault analysis   

The measurement function of smart electricity meter helps to realize preventive maintenance of network components, electricity meters and user equipment, such as detecting power electronic equipment failure,  

Voltage waveform distortion, harmonics, and unbalance caused by grounding faults.  The measurement data can also help the power grid and users analyze network component failures and network losses.   

9. The prepaid   

Smart meters offer a cheaper, more flexible and friendly way to pre-pay than traditional methods.   

10. Electricity meter management   

Meter management includes: asset management of meter installation;  Maintain the database of meter information;  Periodic access to the meter;  Ensure the normal installation and operation of meter;  

Verify the storage location of the table and the correctness of user information.

II. What are the benefits of smart meters?   

1. Independent and transparent consumption: Users can query their current electricity price and the amount of remaining electricity on their computer/mobile phone, easily grasp the information of electricity consumption, and make clear consumption.   

2. More convenient and fast payment: users can pay and recharge on their mobile phones, making payment more convenient.  

3. Avoid power failure due to arrears: when the balance is insufficient, the smart electricity meter will automatically and timely alarm to remind users to pay and recharge, so as to avoid losses caused by power failure due to arrears.  

4. More flexible pre-payment function: Smart electricity meter can be used to recharge mobile phone online, pay before using electricity, no longer need to pay monthly in the business hall, reducing the waiting time.   

5. Avoid human error: Smart meters can proactively settle accounts according to users' electricity consumption, avoiding errors that may be caused by traditional manual meter reading.   

6. effectively prevent electricity meter failure: through the remote information transmission function of smart electricity meter, power workers can monitor the working status of electricity meter in real time, and timely find electricity meter failure. Avoid losses to users.  

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