Comprehensive energy inertia support method for coping with power shortage of power grid

Abstract

The invention discloses a comprehensive energy inertia support method for coping with power shortage of a power grid, which comprises the following steps of: firstly, respectively establishing gas and thermal inertia output models for coping with power shortage of a system, and then determining that the gas and thermal inertia output models can cope with the power shortage of the power grid by cooperating with power generation side output in a unified form according to similar power support characteristics of the gas and thermal inertia. According to the method, the slow dynamic scale characteristics of the gas and heat system in the comprehensive energy park can be fully utilized, then the traditional power grid power vacancy coping mode is integrated, the diversity and low-carbon property of the energy form coping with the power grid power vacancy are improved, and on the premise that the reliability level of the system is guaranteed, the operation economical efficiency and environmental protection property of the system are enhanced.

Description

technical field [0001] The invention relates to the technical field of comprehensive energy, in particular to an inertial support method of comprehensive energy for dealing with grid power shortage. Background technique [0002] In recent years, a large number of renewable energy sources in the power system have led to a decrease in system inertia, which has brought a series of frequency stability challenges to the grid operation; at the same time, due to the volatility, uncertainty and uncontrollability of renewable energy itself The characteristics make it difficult to maintain the power balance between the supply side and the demand side of the power grid. Considering the multi-energy coupling characteristics of electricity and heat in the integrated energy system, when the grid fault generates a power shortage, in addition to the power support provided by the traditional power generation side output, the gas and thermal inertial output can also provide support for the sy...

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Problems solved by technology

Although there are related comprehensive energy inertia support methods in the prior art, it is difficult to ensure environmental protection. For example, the application publication number is: CN111950171A, which is named as a backup configuration method for gas-thermal inertial backup participating in the comprehensive energy system of the park, which specifically includes the establishment of The gas-inertia backup response system power shortage output model, the establishment of thermal inertia backup response system power shortage output model, and the construction of the comprehensive energy backup model of the park, although the complementary configuration of gas-thermal inertia backup, demand-side backup, and power generation-side backup has been realized, in the guarantee system Under the premise of the reliability level, the economical operation of the system is improved, but it does not fully consider the problem of low carbonization, and the environmental protection is poor

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