GB/T 45905.8-2025Electricity spot market operation — Part 8: Calculation method of multi-period power and energy balance (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document is Part 8 of GB/T 45905 “Electricity Spot Market Operation”. GB/T 45905 has been published in the following parts.

— Part 1: Terminology;

— Part 2: Provincial technical support system;

— Part 3: Inter-provincial technical support system;

— Part 4: Load forecasting;

— Part 5: Calculation method for new energy participation in power balance;

— Part 6: Frequency modulation capacity management;

— Part 7: Spare capacity management;

— Part 8: Multi-cycle power and quantity balance calculation method;

— Part 9: Market power monitoring and mitigation;

— Part 10.Operational evaluation.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the China Electricity Council.

This document is under the jurisdiction of the National Technical Committee for Standardization of Power Grid Operation and Control (SAC/TC446).

This document was drafted by: State Grid Corporation of China, State Grid Corporation of China North China Branch, China Southern Power Grid Co., Ltd., Inner Mongolia Electric Power (Group) Co., Ltd., State Grid Hebei Electric Power Co., Ltd., State Grid Energy Research Institute Co., Ltd., China Electric Power Science and Technology Research Institute Co., Ltd., State Grid Corporation of China Northwest Branch, State Grid Corporation of China East China Branch, State Grid Corporation of China Central China Branch Department, State Grid Corporation of China Northeast Branch, State Grid Corporation of China Southwest Branch, State Grid Fujian Electric Power Co., Ltd., State Grid Jiangsu Electric Power Co., Ltd.

Co., Ltd., State Grid Sichuan Electric Power Company, State Grid Zhejiang Electric Power Company, State Grid Anhui Electric Power Company, State Grid Hunan Electric Power Company Co., Ltd., State Grid Gansu Electric Power Company, Beijing Power Exchange Center Co., Ltd., Guangxi Power Grid Co., Ltd., China Southern Power Grid Scientific Research Institute Co., Ltd., China National Machinery Industry Corporation, and Beijing Kedong Electric Power Control System Co., Ltd.

The main drafters of this document are: Dong Yu, Wang Chao, Meng Fanlin, Sun Dayan, Chen Guoping, Xu Tao, Dong Shimeng, Geng Lin, Ma Ke, Yang Junfeng, Yao Li, Lu Runzhao, Deng Li, Liu Dong, Chen Zhixu, Wu Weiming, Yao Weifeng, Zhang Zhi, Li Zenghui, Wu Li, Wang Yanan, Cui Da, Shi Peiran, Liu Yu, Xiao Weidong, Wang Guocheng, Yuan Quan, Zhou Xin, Xiao Liang, Ma Qian, Mo Dong, Guo Qi, Zhou Qinyong, Zhang Jian, Chen Dian, Zhang Libo, Zhang Songtao, Tian Hao, Zhang Xiaodong, Miao Yuancheng, Huang Haiyu, Zhang Xiaotian, Wang Zhicheng, Wu Yuquan, Sun Yi, Guo Xiaming, Yu Xiuyue, Fan Runsheng, Guo Tao, Shen Shaofei, Ma Bin, Wang Yangguang, Lei Shen, Peng Hu, Jin Yiding, He Lei, and Zhou Baorong.

Introduction

In order to further implement the national decision-making arrangements for deepening power system reform and accelerating the construction of a new power system, and to support the high-quality development of the power spot market, This series of standard.

GB/T 45905 "Electricity Spot Market Operation" covers terminology, provincial technical support system, inter-provincial technical support system, load forecasting, new energy Power balance calculation method for power source participation, frequency regulation capacity management, reserve capacity management, multi-cycle power balance calculation method, operation evaluation, etc.

GB/T 45905 is planned to consist of 10 parts.

— Part 1: Terminology. The purpose is to standardize the terms and definitions related to electricity spot market operation and grid operation, to provide a standardized and high-level Provide guidance for the effective construction and operation of electricity spot markets.

— Part 2: Provincial technical support system. The purpose is to standardize the system architecture, functional requirements, performance of the provincial technical support system requirements, data interaction, reliability assurance, security protection and other technical requirements, as a provincial technical support system design, development, construction and Basis for operation.

— Part 3: Inter-provincial technical support system. The purpose is to standardize the system architecture, functional requirements, performance of the inter-provincial technical support system requirements, data interaction, reliability assurance, security protection and other technical requirements, as the provincial technical support system design, development, construction and Basis for operation.

— Part 4: Load Forecasting. The purpose is to specify the basic technical requirements for load forecasting in the electricity spot market, which is used to guide the Market operating institutions, business entities and power grid companies carry out short-term and ultra-short-term system load forecasting, bus load forecasting and Household load forecasting.

— Part 5: Calculation method for new energy participating in power balance. The purpose is to standardize the power spot market environment, wind power, photovoltaic power, etc.

Principles, calculation methods and basic data requirements for the participation of new energy in electricity balance at different scales.

— Part 6: Frequency Regulation Capacity Management. The purpose is to standardize the overall requirements and calculation methods for frequency regulation capacity setting in the spot market, clarify Determine the frequency regulation capacity evaluation and adjustment methods, improve the standardization of the frequency regulation market and the compliance operation level of the spot market, and guide provincial/regional The power grid carries out frequency regulation capacity management.

— Part 7: Spare capacity management. The purpose is to standardize spare capacity configuration, spare capacity mutual assistance, spare capacity recovery and other requirements.

Provide guidance to provincial/regional power grids on reserve capacity management.

— Part 8: Multi-cycle power and quantity balance calculation method. The purpose is to specify the basic requirements for multi-cycle power and quantity balance calculation.

Requirements, data preparation general rules, calculation methods and conclusion analysis are used to guide provincial and above power grids in power dispatching production organization, power Carry out multi-period (year, month, week, day) power balance calculations during spot market operations.

— Part 9: Market power monitoring and mitigation. The purpose is to standardize the monitoring methods and mitigation of market power in provincial/regional electricity spot markets.

Mitigation measures provide guidance for market power monitoring and mitigation.

— Part 10.Operational evaluation. The purpose is to standardize the evaluation requirements, evaluation indicators, and evaluation of provincial/regional electricity spot market operations.

The evaluation methods are used to provide guidance for the operation evaluation of the electricity spot market.

Electricity spot market operations Part 8: Multi-cycle power and quantity balance calculation method

1 Scope

This document specifies the basic requirements, general rules for data preparation, calculation methods and conclusion analysis requirements for multi-cycle power and electricity balance calculations.

This document is applicable to provincial and above power grids in the process of power dispatching production organization, power spot market operation, etc. to carry out multi-cycle (year, Monthly, weekly, daily) power balance calculation.

2 Normative references

GB/T 45905.1

GB/T 45905.4

GB/T 45905.5

GB/T 45905.7

3 Terms and Definitions

The terms and definitions defined in GB/T 45905.1 apply to this document.

4 General Requirements

4.1 The power and electricity balance should be carried out in a coordinated and sequential manner on multiple time scales, such as year, month, week, and day.

The changes are updated in a rolling manner.

4.2 The power and electricity balance should be carried out in a coordinated manner by multiple power dispatching organizations. After scientific calculation and safety verification, the power and electricity balance of each level should be determined jointly.

Grid power balance margin and status.

4.3 The power and electricity balance should be based on the provincial power grid as the minimum object and be reduced to local power grids according to actual needs.

4.4 The power balance should evaluate the balance status under different scenarios and be divided into different types according to the changes in factors such as power generation, power reception, load, and weather.

The analysis is carried out based on the same equilibrium scenario.

5 Power balance calculation