Method for evaluating adequacy of power generation and transmission system with consideration of natural gas network failures
A technology of power generation and transmission system and natural gas network, which is applied in the field of adequacy assessment of power generation and transmission system considering natural gas network faults, can solve problems such as inaccurate results, ignorance of gas supply adequacy of natural gas network, etc., and achieve accurate adequacy assessment. Effect
Active Publication Date: 2019-03-26
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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[0048] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0049] like figure 1 As shown, the present invention discloses a method for assessing the adequacy of the power generation and transmission system considering the failure of the natural gas network, including the following steps:
[0050] S101 establishing a reliability model of the power generation and transmission system;
[0051] S102 establishes a natural gas network reliability model;
[0052] S103 initialize the first comparative load reduction amount;
[0053] S104 randomly sampling the status of the components in the natural gas network and the status of the components in the power generation and transmission system;
[0054] S105 evaluates the reliability of the power generation and transmission system considering the failure of the natural gas network, and obtains the load reduction amount of the power generation and transmission system under the...
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The invention discloses a method for evaluating the adequacy of a power generation and transmission system with consideration of natural gas network failures. A reliability model of a power generationand transmission system and a natural gas network is established; random state sampling is carried out on original pieces in the power generation and transmission system and the natural gas network;on the basis of the random sampling state and the reliability model, a load reduction amount of the power generation and transmission system is calculated and an average value is calculated; and whenthe load reduction amount average value change is less than a preset threshold, an adequacy index of the power generation and transmission system is calculated based on multi-times sampling states. Compared with the prior art, the method has the following advantage: since the adequacy of natural gas is considered into the adequacy evaluation of the power generation and transmission system, the adequacy evaluation of the power generation and transmission system becomes accurate.
Description
technical field [0001] The invention belongs to the technical field of evaluation methods for the reliability of electric-gas interconnection systems, and in particular relates to a method for evaluating the adequacy of power generation and transmission systems in consideration of natural gas network faults. Background technique [0002] Power supply reliability is a long-term concern of power generation and 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 has brought unprecedented challenges to the reliability of my country's power supply. With the increasing consumption of coal resources and the intensification of environmental pollution, my country's energy structure is changing from an energy structure dominated by coal and fossil energy to an energy structure dominated by oil and gas and non-fossil energy. But at this time, the dev...
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Patent Timeline
Login to View More IPC IPC(8): H02J3/00H02J3/06G06Q50/06G06Q10/06
CPCG06Q10/0639G06Q50/06H02J3/00H02J3/06H02J2203/20
Inventor 胡博谢开贵聂佳焰王刚路红池阮航
Owner CHONGQING UNIV