Source network co-scheduling method including controllable series connection compensation device

Abstract

The invention discloses a source network co-scheduling method including a controllable series connection compensation device. The method comprises the following steps: step 1, relevant calculation parameters are given; step 2, the operation mode of a controllable series connection compensation device is modeled; step 3, an optimized model is constructed, the optimized model is based on the target that the sum of the power generating cost of a power system and the cost of abandoned wind power is minimal, and the optimized model includes a number of constraints; and step 4, the optimized model is simplified and employs a mixed-integer quadratic programming method to solve the problem, and a final source network co-scheduling scheme is obtained. The method integrates the controllability of current flow control equipment and energy storage systems and the like into economic scheduling decision-making of a power grid, and constructs the source network co-scheduling model of the wind and electricity coexistence in the power grid to determine the economic operation mode under the restriction of the security constraint level, can enhance the consumption of fluctuation of wind power, load, and so on injected into nodes under the premise of ensuring the safe operation of the power grid, and improves the economic benefit of power grid operation.

Description

technical field [0001] The invention relates to a source-network coordinated scheduling method including a controllable series compensation device, and belongs to the technical field of electrical engineering. Background technique [0002] With the increasing number of passive sources such as wind power and photovoltaics in the power grid, and the diversified development of power load forms, the real-time balance of power system sources and loads is threatened, giving the traditional only active power sources (synchronous generators) tracking passive power sources and The grid economic dispatch method of load is facing challenges. Therefore, how to tap the active factors in the power system to promote the economic decision-making of source-load balance under the new situation is an urgent problem to be solved at present. Under certain conditions, the energy storage system can not only act as a load to charge from the grid, but also act as a power source to discharge to the ...

AI Technical Summary

Problems solved by technology

[0003] The traditional dispatching is researched on the premise that the structural parameters of the power grid remain unchanged, and the influence of active factors such as changes in the operating mode of the power grid structure has not been taken into account, so it has a certain degree of conservatism

Especially with the introduction of power flow control equipment such as series compensation devices, the conservativeness of the above approach becomes more obvious

Images