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GB/T 42320-2023 English PDF (GBT42320-2023)

GB/T 42320-2023 English PDF (GBT42320-2023)

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GB/T 42320-2023: Technical directives for planning of energy internet

This document specifies the general requirements, energy demand and supply forecasts, energy balance, energy internet architecture, energy internet planning and construction, multiple interactions, technical and economic analysis, as well as other requirements, for planning of energy internet. This document is applicable to works related to the planning, design and construction of energy internet.
GB/T 42320-2023
ICS 29.240.01
CCS F 10
Technical directives for planning of energy internet
Issued by: State Administration for Market Regulation;
Standardization Administration of the PEOPLE Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 General requirements ... 6
5 Energy demand and supply forecasting ... 7
5.1 General requirements ... 7
5.2 Energy demand forecasting ... 8
5.3 Energy supply forecasting ... 9
6 Energy balance ... 10
6.1 General requirements ... 10
6.2 Total energy balance ... 10
6.3 Energy dynamic balance ... 11
7 Energy internet architecture ... 12
7.1 Overall architecture ... 12
7.2 Physical architecture ... 12
7.3 Information architecture ... 13
7.4 Communication network architecture ... 13
8 Energy internet planning and construction ... 14
8.1 General requirements ... 14
8.2 Planning and construction requirements ... 14
9 Multiple interactions ... 16
9.1 General requirements ... 16
9.2 Multi-energy complement ... 16
9.3 Source-network-load-storage coordination ... 17
10 Technical and economic analysis ... 18
10.1 Calculation and analysis requirements ... 18
10.2 Technical and economic evaluation ... 19
Bibliography ... 20
Technical directives for planning of energy internet
1 Scope
This document specifies the general requirements, energy demand and supply forecasts, energy balance, energy internet architecture, energy internet planning and construction, multiple interactions, technical and economic analysis, as well as other requirements, for planning of energy internet.
This document is applicable to works related to the planning, design and construction of energy internet.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document. GB/T 9237, Refrigerating systems and heat pumps - Safety and environmental requirements
GB 17859, Classified criteria for security protection of computer information system GB/T 22239, Information security technology - Baseline for classified protection of cybersecurity
GB/T 22240, Information security technology - Classification guide for classified protection of cybersecurity
GB 29550, General safety technique conditions for gas in civil building GB 38755, Code on security and stability for power system
GB 50015, Standard for design of building water supply and drainage
GB 50028, Code for design of city gas engineering
GB/T 51074, Code for urban heating supply planning
GB/T 51098, Code for planning of city gas
CJJ/T 34, Design code for city heating network
DL/T 5729, Technical guide for planning and design of distribution network advanced energy technology, it supports clean and low-carbon transformation of energy, optimization of comprehensive energy utilization efficiency, and flexible and convenient access of multiple subjects.
4.2 Energy internet planning shall give priority to the use of renewable energy according to regional resource endowment and energy supply and demand
characteristics, and achieve the goals of improving clean energy consumption capacity, comprehensive energy utilization rate and user energy supply quality through optimal allocation, coordination and complementarity, and efficient utilization of various energy sources.
4.3 Energy internet planning shall ADHERE TO the concept of system planning, FOLLOW the principles of ?€?source-network-load-storage collaborative interaction, power-heating-cooling-gas multi-energy complement, and energy information deep integration?€?, CARRY OUT overall optimization around key links such as energy production, conversion, transmission, and storage, CARRY OUT overall design in combination with key aspects such as physical architecture, information architecture, and communication architecture, and COORDINATE the internal composition, spatial layout, and timing arrangement of each planning element, to achieve the optimal overall energy utilization efficiency.
4.4 Major cities and disaster-prone areas shall carry out disaster prevention construction of key energy supply facilities, appropriately improve construction standards, and enhance the disaster prevention and emergency support capabilities of the regional energy internet.
4.5 The technical and economic evaluation of energy internet planning shall adhere to the basic principle of ?€?combining quantitative and qualitative evaluation, with quantitative as the main and qualitative as the supplement?€?. Quantitative evaluation shall be based on the data information in the reasonable assumptions of the energy internet for quantitative and accurate evaluation; qualitative evaluation shall carry out a comprehensive evaluation of the energy internet.
4.6 Energy internet planning shall be incorporated into local land and space planning, with facility corridor land rationally reserved for multiple types of energy such as electricity, heat, and gas. Energy internet facilities shall be planned simultaneously with other urban and rural infrastructure, and the layout of facilities shall meet the requirements of national laws and regulations on environmental protection, soil and water conservation, and ecological environment protection.
5 Energy demand and supply forecasting
5.1 General requirements
5.1.1 Energy demand and supply forecasting, the basis of energy internet planning and design, includes forecasts for the demand and supply of energy such as electricity, heat, cold, and gas, as well as forecasts for the development of various energy sources such as coal, oil, natural gas, hydropower, solar energy, wind energy, nuclear energy, geothermal energy, biogas, and tides in the region.
5.1.2 The load development characteristic curve, which shall be determined according to regional characteristics, social development stage and user type, shall be used as the basis for planning.
5.1.3 The basic data for energy demand and supply forecasting shall include economic, social and natural climate data, forecast results of the planning area by the higher-level energy internet planning, historical annual energy load and supply data, etc., including historical data of year, month, day and other time scales. Energy internet planning shall accumulate and use a series of standardized historical data of energy demand and supply as the basis for forecasting.
5.1.4 Energy demand and supply forecasting shall adopt various methods, and, after comprehensive analysis, provide three schemes of high, medium, and low levels of demand and supply forecasting results, and put forward a recommended scheme. 5.1.5 Energy demand and supply forecasting shall determine the total forecast results of energy demand and supply, and should carry out forecasts by categories and regions. The short-term forecast results shall be listed year by year, and the mid-term and long- term results can be listed at the end of the planning.
5.1.6 The investigation and collection of data shall be done through various channels. Government departments, enterprises and institutions shall cooperate with each other to improve the accuracy of demand forecasting.
5.1.7 The forecast results shall be obtained after comprehensive calculations based on the energy resource conditions, energy demand in the planning area, and the complementary relationship between multi-category energy sources.
5.2 Energy demand forecasting
5.2.1 The energy demand forecasting shall analyze changes in user energy consumption patterns, changes in load characteristics, coupling relationship and mutual influence between different energy sources, and impact of new energy elements such as electric vehicles, energy storage, coal-to-gas, and coal-to-electricity on energy demand, to obtain the forecast results after comprehensive calculation.
5.2.2 The electricity demand forecasting shall include electric quantity forecast and electric power forecast. The power demand forecasting needs to consider factors such as economic development, industrial layout, technological progress, policy mechanism, and population size. The forecast and analysis methods shall be in accordance with DL/T 5729.
5.3.4 Renewable energy installed capacity forecasting shall select the appropriate location and capacity according to the resource endowment of renewable energy in the planning area.
5.3.5 Renewable energy power generation forecasting can adopt sustainability methods, physical methods, statistical learning methods, and multi-component combination methods for renewable energy power generation prediction, and shall take full advantage of advanced technologies such as meteorological technology and artificial intelligence, to improve prediction accuracy.
5.3.6 Commonly used energy supply forecasting methods include energy reserve analysis, trend extrapolation, and energy system analysis.
6 Energy balance
6.1 General requirements
6.1.1 Regional energy resource conditions, energy resource demand, energy resource prices, policies, environmental protection and other factors shall be considered to meet the goal of reliable energy supply for the energy internet, and to formulate corresponding energy balance strategies based on economic and sustainable development.
6.1.2 The capacity and scale of various energy facilities in the planning level year shall be determined according to the energy balance strategy.
6.1.3 Overall consideration shall be given to the total energy balance and energy dynamic balance. The realization of the total energy balance depends on the optimization and coordination of the whole cycle of development and utilization between renewable energy and non-renewable energy; the realization of energy dynamic balance depends on the short-cycle optimization and coordination of energy systems such as electricity, heat, cold, and gas.
6.1.4 Energy balance needs to consider the adjustment ability of energy consumption on the demand side, so as to realize the total balance and dynamic balance between the energy supply side and the demand side.
6.2 Total energy balance
6.2.1 The total energy balance shall define the balance scope and balance target of total energy according to the planning region, and shall meet the following requirements: a) The balance scope shall be consistent with the planning scope of the energy internet, and shall clarify the balance boundary of the total amount of resources; b) The balance target shall be in line with the energy balance strategy of the energy internet plan, and shall consider the requirements of regional resource conditions, regional resource structure development, economy, and environmental protection. 6.2.2 The total energy balance shall distinguish the production and demand of primary energy and secondary energy, and comprehensively reflect the supply-demand relations of each link in the whole process of the entire energy system.
6.2.3 All kinds of energy in the region shall be converted into energy in standard units of measurement, and the total balance shall be carried out in the same unit of measurement.
6.2.4 The planning capacity of the energy internet shall be determined, after retaining an appropriate margin, based on the total energy demand, energy demand characteristics and changing trends in the planning area.
6.2.5 The total energy balance of the planning area shall be carried out by regions and layers, combined with the existing energy supply level of electricity, heat, cold and gas, integrating renewable energy, hydrogen energy, energy storage facilities, etc. and electrified transportation, to achieve multi-energy coordinated supply and comprehensive energy cascade utilization. The capacity required for different regions and different layers shall be determined according to the predicted energy supply and demand distribution, and be balanced with the planned energy supply type, capacity and existing energy facility scale.
6.3 Energy dynamic balance
6.3.1 Energy dynamic balance shall meet the energy demand of various users in different scenarios. The base load should be balanced within the subsystems of electricity, heating, cooling and gas; the peak-and-valley load can be balanced within a region or across regions through energy storage and complementary means. 6.3.2 Priority should be given to the use of renewable energy such as wind, light, biomass, and geothermal energy, to promote the consumption of renewable energy. At the same time, the randomness, volatility, and intermittent characteristics of renewable energy should be considered, and flexible resources such as energy storage with appropriate capacity and adjustable loads should be reserved.
6.3.3 A scientific and rational way of using energy shall be adopted to ensure the efficiency of dynamic energy conversion and utilization.
6.3.4 On the basis of dynamic supply and demand, the energy production, transmission and distribution, and demand of each link of the energy internet shall be determined. 6.3.5 The optimal energy dynamic balance scheme shall be selected according to the planning objectives of the energy internet in consideration of the reliability, economy, and flexibility requirements of the energy internet operation.
7.3 Information architecture
7.3.1 The information architecture of the energy internet can be divided into two parts: information resources and energy services.
7.3.2 Information resources of the energy internet can obtain energy flow parameters, equipment operating status, user needs, environment and other information through sensing, metering and other measurement and control devices, including real-time, cumulative and historical structured and unstructured data, and use technical means such as cloud platform and big data analysis to realize holographic monitoring and comprehensive analysis of energy equipment, and provide data services at the same time.
7.3.3 Energy services of the energy internet can use data resources in the information resource layer to realize energy scheduling, operation, maintenance, market transactions, financing and other derivative or value-added services.
7.3.4 The information system planning of the energy internet shall meet the requirements of different businesses such as scheduling, operation, maintenance, market transactions, financing and other derivative or value-added services, avoiding redundant construction, and supporting phased implementation.
7.3.5 Necessary information security protective measures shall be taken for the energy internet. The classification of information security protection grade shall comply with the provisions in GB 17859 and GB/T 22240, and shall comply with the protection requirements for corresponding grade specified in GB/T 22239.
7.4 Communication network architecture
7.4.1 The communication network architecture shall meet the needs of various services of the energy internet for information interaction, and retain the adaptability of technological development on the basis of being effectively compatible with the existing communication network structure.
7.4.2 Energy internet planning needs to simultaneously consider the communication network planning, and clarify the communication network construction content such as communication channel construction, communication equipment configuration, construction timing and investment according to business needs.
7.4.3 Energy internet communication network can be divided into backbone network and access network. The backbone network can adopt communication methods such as Synchronous Digital Hierarchy (SDH), Wavelength Division Multiplexing (WDM), and Optical Transport Network (OTN). The access network shall be reasonably selected according to the requirements of cost, communication delay, communication distance, bandwidth, node capacity, and anti-interference. It can use wired or wireless communication, and can use fieldbus, ZigBee protocol, power line carrier, long- distance radio (LoRa), narrowband Internet of Things (NB-IoT), micropower wireless, 4G/5G and other communication methods.
8 Energy internet planning and construction
8.1 General requirements
8.1.1 Energy internet can be divided into three types of construction levels: park energy internet, regional energy internet and cross-regional energy internet according to the regional scale.
8.1.2 Park energy internet can be applied to regions such as schools, hospitals, large commercial complexes, industrial parks, and urban areas with diverse energy needs and a certain scale. The local or regional energy supply side, transmission and distribution side, and demand side participants form an interconnected network according to their wishes and transactions. Mainly for the single park operator or user, it can achieve internal energy supply and demand balance and independent operation.
8.1.3 The regional energy internet can be applied to cities, counties, and rural areas of different sizes. It is composed of a regional energy backbone grid, multiple park energy internet and other scattered energy user interconnections. By realizing energy complementarity and load interaction in the region, the comprehensive utilization efficiency of regional energy and the reliability of energy supply can be improved. 8.1.4 Cross-regional energy internet can be applied to large-scale regions with cross- city, national and global interconnection characteristics. It is composed of multiple regional energy internets interconnected through cross-regional energy backbone grids. By realizing cross-regional space-time mutual benefit of energy, a wider range of clean energy development and utilization can be realized.
8.2 Planning and construction requirements
8.2.1 Energy internet planning shall carry out cascade utilization of multiple types of energy such as electricity, heat, cold, and gas, and coordinate elements such as energy production, conversion, transmission, and storage, improve the efficiency of comprehensive energy utilization, and ensure the quality of energy supply for users. According to the planning process, the energy internet planning and construction shall meet the following basic requirements:
a) The supply structure and scale allocation of various energy sources shall be reasonably determined based on the energy demand forecasting and energy balance analysis results;
b) Energy networks such as power supply network, heating/cooling pipe network, and gas supply network shall be uniformly planned according to the distribution the requirements of demand response and complementary mutual aid of different types of energy within the region.
8.2.9 Cross-regional energy internet planning shall follow the principles of safety, reliability, low carbon and high efficiency, coordinate and optimize energy complementarity and clean energy development and utilization within the cross- regional range, and coordinate the planning of energy backbone grids at all levels. 9 Multiple interactions
9.1 General requirements
9.1.1 During the energy internet planning, it is necessary to comprehensively consider the horizontal multi-energy complement and the vertical source...

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