Power Solutions
CONSTRUCTION OF INTELLIGENT DISTRIBUTION NETWORK
Huaxiang Xiangneng always follows the path of sustainable development with quality improvement as the core, continuously improves engineering quality, achieves full-process control and all-round management, and the project departments form a joint force to create brand projects and image projects, setting a new benchmark for the intelligent power grid construction industry.
ConstructionQualification
At present, the company has second-level qualification certificate for power general contracting and power transmission and transformation general contracting, second-level qualification certificate for installation, repair, and testing, and second-level qualification certificate for general contracting of electronic intelligence. It can undertake power general contracting of projects with voltage levels of 220kV and below, professional contracting of power transmission and transformation projects with voltage levels of 110kV and below, and power supply and power consumption construction and installation business. It provides one-stop service to meet customers’ power supply needs: providing power supply load calculation, power supply design, equipment selection, manufacturing production, transportation, on-site installation, commissioning and later maintenance, realizing the in-depth integration of each stage of work and the quality control of the whole process, and create a “turnkey project”.
POWER SUPPLY AND DISTRIBUTION PLAN FOR SUPER-HIGH-RISE BUILDING
The term of super-high-rise building is taken from the Code for design of civil buildings GB50352-2005, that is, a civil building with a height greater than 100 m (regardless of whether it is a residential or public building) is defined as a super-high-rise building.
INTELLIGENT POWER SUPPLY AND DISTRIBUTION SOLUTION FOR MASSIVE RESIDENTIAL DISTRICT
Massive residential districts (all public transformers) have relatively high requirements for power quality such as power supply reliability and power supply stability. This solution is based on the guiding principles of the latest version of the “Technical Guidelines for the Construction of Power Supply and Distribution Facilities in Changsha Urban Residential Areas (2018)”. It scientifically calculates the power consumption, reasonably selects the power supply and distribution methods, and takes into account the automation configuration of the distribution network to achieve the goal of safe and stable power supply and consumption in residential areas.
POWER SUPPLY AND DISTRIBUTION FOR FACTORIES AND MINING ENTERPRISES
Factories and mining enterprises have very complex structures and diverse requirements for functions. Different factories and mining enterprises with different functions require different design concepts, which greatly increases the difficulty in designing the low-voltage power distribution systems of factories and mining enterprises.
Our company has its own unique understanding of the power supply and distribution of factories and mining enterprises. On the premise of ensuring power supply reliability, we provide factories and mining enterprises with power supply and distribution solutions with low energy consumption, low maintenance and low construction costs.
LARGE ELECTRIC VEHICLE CHARGING STATION SOLUTION
Great Harm of Harmonics
The electric vehicle charger is a nonlinear device, and the harmonics it generates are mainly 5k±1 harmonics. If not managed and controlled, it will lead to increased grid losses, overheating and loss of equipment life, interference with control and communication circuits, and at the same time cause voltage distortion, a decrease in the power factor, and affect the normal operation of other electrical equipment in the power grid.
Large Load Variation
Due to the large load variation and long idle time of charging stations, they have a relatively large impact on the peak and valley of the power grid.
MICRO-GRID INTEGRATED ENERGY MANAGEMENT
Micro-grid refers to a small-scale power distribution and generation system composed of distributed power sources, energy storage devices, energy conversion devices, loads, monitoring and protection devices, etc. Under normal circumstances, the micro-grid operates in parallel with the conventional distribution grid and enters the grid-connected mode. When the large power grid cannot be accessed, the micro-grid will operate independently to ensure power supply.
Huaxiang Xiangneng combines its own advantages in intelligent power grid equipment manufacturing and power intelligent software development to provide customers with comprehensive services such as micro-grid project construction, micro-grid project operation and maintenance trusteeship, photovoltaic power supply, and power energy transfer. Through functions such as micro-grid self-generation, surplus electricity feeding into the grid, transformer capacity adjustment, load shifting for electricity consumption, and power energy transfer, it helps customers reduce electricity costs, reduce power outage losses, solve electricity consumption faults, and save operation costs.
MICRO-GRID INTRODUCTION
Micro-grid, also called as micro-network, refers to a small-scale power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, loads, monitoring and protection devices, etc. The micro-grid aims to achieve the flexible and efficient application of distributed power sources and solve the grid connection problems of a large number of diverse distributed power sources. The development and extension of micro-grids can fully promote the large-scale access of distributed power sources and renewable energy, achieve a highly reliable supply of multiple energy forms for loads, and is an effective way to realize an active distribution grid, facilitating the transition of the traditional power grid to a smart grid.
THE APPLICATION CASE OF MICRO-GRID
The company invests in the construction of micro-grid power stations according to the location of customers and operates them in parallel with the conventional distribution grid. When a grid failure or the power quality does not meet the requirements is detected, the micro-grid will enter the island mode and disconnect from the grid in time to operate independently. Without increasing the cost of customers, the construction of the micro-grid will not only improve the power supply reliability for customers but also enable them to use the micro-grid’s electrical energy at a discounted price of the power grid first.
For example, a company’s photovoltaic power station has an installed capacity of 500kWp and an average monthly power generation of 37,506.25KWH. Customers give priority to using the electricity from the photovoltaic power station at a discounted price (92% off) of the power supply price of the State Grid Corporation in the same time period. Other additional fees are charged according to the enterprise’s original electricity consumption mode (including the electricity quantity of photovoltaic power generation). The company saves about 4,000 Yuan in electricity bills every month (see the table below for the electricity generation amount of photovoltaic power generation and the saved electricity bills).
DISTRIBUTED GENERATION TYPE
| Project Name | Total Company Electricity Bill (Yuan) |
Photovoltaic Power Generation Quantity (KWH) |
Electricity Bill Saved after Using Photovoltaic Power (Yuan) |
Actual Electricity Bill Paid after Using Photovoltaic Power (Yuan) |
|---|---|---|---|---|
| 1月 | 99064.62 | 20759 | 1992.92 | 97071.70 |
| 2月 | 62183.65 | 23265 | 2231.10 | 59952.55 |
| 3月 | 72041.60 | 25902 | 2483.99 | 69557.61 |
| 4月 | 81407.51 | 36175 | 3852.68 | 77554.83 |
| 5月 | 84993.93 | 47483 | 4553.60 | 80440.23 |
| 6月 | 86359.55 | 46005 | 4396.76 | 81963.23 |
| 7月 | 89140.12 | 59363 | 5535.02 | 83453.36 |
| 8月 | 108675.50 | 57779 | 4314.25 | 103140.48 |
| 9月 | 96852.35 | 45044 | 3441.14 | 92538.10 |
| 10月 | 91420.47 | 35928 | 2757.28 | 87979.33 |
| 11月 | 90923.53 | 28788 | 4396.32 | 88166.25 |
| 12月 | 91330.34 | 23584 | 2258.84 | 89071.50 |
| Total | 1054393.07 | 450075 | 43503.91 | 1010889.17 |
INTEGRATED ENERGY ADVANTAGES
Safe Energy Use
The energy efficiency system conducts 24-hour real-time measurement, detection, and management of the consumption and use of various energies. Our company has a real-time energy efficiency alarm monitoring hall. If the customer’s energy consumption is abnormal, the customer will be notified to handle it, and if necessary and with the customer’s consent, remote manual power outage will be carried out. This system can give early warnings and prevent electrical fires. The professional operation and maintenance team can detect and maintain the customer’s power equipment to extend the service life of the power equipment. In case of special power outages, equipment can also be provided for short-term power supply to ensure production, and emergency repairs can be provided in case of failures.
Energy Conservation
The energy efficiency management system based on the Internet of Things conducts fine measurement, real-time monitoring, intelligent processing, and dynamic management and control of various energy consumption such as water, electricity, and gas on the Internet, generates time period analysis curves and monthly data statistical reports. If there are areas with abnormal energy consumption, customers can promptly check and save energy. This system can be linked with the attendance system and the access control system to achieve power on when people arrive and power off when people leave. Customers can enjoy services such as electricity discounts and maintenance without increasing any additional costs by handing over power construction and load management to our company. Ensure the power efficiency of customers. If customers incur reactive power compensation fines, our company will pay them on behalf of the customers.
SERVICE PROCESS
ENERGY SERVICE CONTENT
|
Equipment Inspection, Overhaul and Report |
1. Conduct an inspection of the distribution equipment within the service range once a month. The system records relevant inspection data and sends real-time text messages before and after each inspection operation. |
| 2. Systematically record the electrical defects or potential safety hazards found during the inspection according to the defect handling level, and carry out planned maintenance. | |
| 3. Conduct maintenance work on the distribution equipment within the service range free of labor costs (the customer is responsible for the material costs). | |
| 4. Make rectifications free of labor costs for the equipment defects within the service range pointed out by the power managing department during safety inspections (excluding civil construction). | |
| 5. Issue a “Safety Operation and Maintenance Report” every month and provide a safe electricity application strategy. | |
| 6. Repair faults and handle accidents of the distribution equipment free of labor costs. | |
|
Annual Maintenance |
1. Conduct power-off maintenance and standby equipment switching tests on the distribution equipment within the service range no less than once a year to keep the equipment in a safe and reliable state. |
| 2. Dust-clean the equipment components in the transformers and power distribution cabinets, and check and tighten the screws of the primary and secondary connection parts of each circuit. | |
| 3. Lubricate the switch operation transmission mechanism. | |
| 4. Check and seal the cable entry and exit holes in the power distribution cabinets and the gaps between the cabinets to prevent small animals from getting into the live electricity equipment and causing electrical accidents. |
SMART PUMP STATION BUSINESS
Huaxiang Xiangneng’s intelligent pumping station business provides operation and maintenance services such as automatic control management of pumping stations for local water conservancy systems through its independently developed intelligent irrigation and drainage pumping station management system, innovatively realizing “unmanned on-duty and few staff on-watch”, and helping the development of intelligent water conservancy.
Project background
At present, China’s water conservancy construction has entered a new era. The transformative power generated by intelligence, big data, and cloud-computing is becoming increasingly prominent. Promoting the construction of intelligent water conservancy and implementing the “Water Conservancy 4.0” strategy to launch a new era of intelligent water conservancy.
Significance of pump station construction
As the most common drainage and water supply facilities in water conservancy projects, they play an important role in agricultural irrigation, urban water-supply and drainage and sewage discharge, ensuring the water demand of residents, developing the economy, and building the ecological environment.
Smart pump station
Intelligent Operation and Maintenance Management System for Irrigation and Drainage Pumping Station
Relying on Internet-of-Things technology
Taking a new type service operation model
Assist the standardized unattended-control of intelligent water conservancy
Create a new type national level intelligent water conservancy infrastructure
System introduction
Utilize on-site equipment such as intelligent control cabinets, intelligent sensors, intelligent instruments, valve systems and monitoring cameras. Collect data on the water level of river basins, weather and the operation status of pumping stations with the technologies like the Internet of Things, big data collection and analysis, video monitoring and automatic control. Realize the automatic group dispatching of pumping stations, with through big data modeling and intelligent decision-making. With the professional operation and maintenance services provided by our company, we can grasp all kinds of information and data of the pumping stations in real time, achieve 24-hour real-time monitoring of meteorology, water level and online data, intelligently control the power-on, reduce the no-load operation of equipment, cut down the maintenance waiting time, strengthen the control of management costs, improve the overall dispatching level and ensure the long-term and stable operation of the pumping stations.
System Structure
Introduction to System Functions
Project Benefits and Business Model
Energy Saving and Emission Reduction
1. Through the intelligent operation and maintenance management system of the irrigation and drainage pumping station, problems such as unauthorized electricity connection, reactive power fines, cyclic drainage and long-term no-load operation of transformers in the pumping station can be solved. According to calculation and analysis, it is estimated that the annual electricity cost savings for a single pumping station is more than 10,000 Yuan on average.
2. Through the intelligent operation and maintenance system of the pumping station, the optimized management of pre-flood maintenance, in-flood overhaul and post-flood repair of the pumping station can be realized. The equipment integrity rate can be improved, the equipment failure rate can be reduced, the service life of the equipment can be extended, and the maintenance cost can be saved.
Human Resource Saving (Management Cost)
In Heshan District, the annual wage expenditure for the existing mechanical and electrical irrigation and drainage personnel is more than 5 million Yuan. Adopt the “unmanned duty and few people on duty” mode of the pumping station, breaking the traditional manned duty mode. The existing pumping station workers will gradually eliminate, which will greatly reduce the labor expenditure cost.
Centralized and Scientific Management
After the pumping stations are uniformly connected to the system, unified processes and unified dispatching are realized in terms of business and administrative management. According to the collaborative management of users, river basin resources and configurations, the management becomes more efficient and collaborative, and unnecessary resource waste is reduced; more refined management is realized.
Data information and operation and maintenance results will be formed into report files, and the work results will be regularly reported to the management department. With the information support of the intelligent operation and maintenance management system of the irrigation and drainage pumping station, the decision-making of the leaders of the water conservancy department on the irrigation and drainage pumping stations becomes more comprehensive, reasonable and feasible, forming data-supported and scientific decision-making.
Social Effects
1. Timely drainage could reduce the property losses of the masses to the minimum extent. While exerting normal efficiency, the satisfaction of the people and the credibility of the government are obtained. During the flood season in this summer, no major dangerous situations occurred in the river basins that had been connected to our company’s system, realizing accurate and scientific regulation and ensuring the safety of people’s lives and property.
2. The intelligent management mode of the pumping station has promotional and reproducible characteristics and is gradually promoted to cover Yiyang City, Hunan Province and even the whole China.
3. Provide more work opportunities to the society, and attract professional and technical personnel. It is estimated that 20 social employment positions will be added in each urban area.
Business Model
Huaxiang’s Innovative Business Model
We build
We manage
We operate and maintain
Customers
Huaxiang
Customers pay the operation and maintenance fee annually according to the installed capacity.
Investment and construction of software, hardware and systems; operation management and maintenance management.
REPRESENTATIVE CASES
