A method for adequacy assessment of power generation and transmission systems considering natural gas network faults
A technology for power generation and transmission systems and natural gas grids, which is applied in the field of adequacy assessment of power generation and transmission systems taking into account natural gas grid failures, can solve problems such as inaccurate results, failure to take into account the adequacy of natural gas network gas supply, etc., and achieve accurate adequacy assessments Effect
Active Publication Date: 2022-03-25
CHONGQING UNIV
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[0003] However, the existing reliability assessment of the power supply system does not take into account the adequacy of the natural gas grid supply, which leads to serious inaccuracies in the assessment results of the adequacy of the power supply of the power generation and transmission system
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Embodiment Construction
[0048] The present invention will be further described below with reference to the accompanying drawings.
[0049] Such as figure 1 As shown, the present invention discloses a method of assessment of a transmission power system, including a natural gas network failure, comprising the steps of:
[0050] Reliability Model of Transmission System;
[0051] S102 establishes a natural gas network reliability model;
[0052] S103 initializes the first contrast load reduction amount;
[0053] S104 random sampling natural gas network in the state of the components and the state of the components in the transmission system;
[0054] The S105 has a reliability assessment of a transmission power system that is tested and natural gas network failure. The load reduction amount of the current state in the current state is calculated by the optimal trend, as the second contrast load cut amount;
[0055] If the difference between the first contrast load cut amount and the second contrast load cut ...
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The invention discloses a method for assessing the adequacy of the power generation and transmission system considering the failure of the natural gas network. Firstly, the reliability model of the power generation and transmission system and the natural gas network is established, and then random state sampling is performed on the components in the power generation and transmission system and the natural gas network. The state and reliability model of random sampling calculates the load reduction of the power generation and transmission system. When the change of the load reduction is less than the preset threshold, the adequacy index of the power transmission system is calculated based on the state of multiple sampling. Compared with the prior art, the invention takes the adequacy of natural gas into the adequacy assessment of the power generation and transmission system, so that the adequacy assessment of the power generation and transmission system is more accurate.
Description
Technical field [0001] The present invention belongs to the evaluation method of the reliability of electrical-gas interconnection system, and specifically, it is specifically involved in a proliferative assessment method of a transmission electrical system that is based on natural gas network failure. Background technique [0002] Power supply reliability is a long-term concern of transmission systems, and the requirements for power supply reliability are closely related to national production and economic development. The Adjustment of my country 's Energy Structure Gives Unprecedented Challenges in my country' s Power Supply Reliability. With the increasing consumption of coal resources, environmental pollution is intensified, my country's energy structure is transforming from energy structures mainly from oil and gas and non-fossil energy mainly based on coal and fossil energy. At this time, the development of renewable energy technology has not yet mature, and large-scale co...
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IPC IPC(8): H02J3/00H02J3/06G06Q50/06G06Q10/06
CPCH02J3/00H02J3/06G06Q10/0639G06Q50/06H02J2203/20
Inventor 胡博谢开贵聂佳焰王刚路红池阮航
Owner CHONGQING UNIV