Security constrained economic dispatching method, system, device and readable storage medium
An economic scheduling and security-constrained technology, applied in circuit devices, single-network parallel feeding arrangements, AC network circuits, etc., can solve problems such as the impact of power generation capacity, underutilization, and inefficient operation and backup
Active Publication Date: 2018-11-13
GUANGDONG POWER GRID CO LTD +1
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[0003] In the arrangement of traditional power grid operation mode, the method of constant operation reserve reservation is often adopted. Its main feature is to determine the operation reserve level of each period of the day according to the impact of load forecast deviation under extreme power grid mode and the maximum power shortage that may be caused by a single component failure. Based on this, the power generation plan of the generating set is compi
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[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0041]The embodiment of the present invention discloses a safety-constrained economic dispatch method, see figure 1 As shown, the method includes:
[0042] S1: Utilize the operating reserve price and operating reserve plan of the generator set in advance, and establish an objective function aiming at minimizing output and operating reserve cost;
[0043] S2: Establish constraints corresponding to the objective function in advance, including node power balance...
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The application discloses a security constrained economic dispatching method, system, device and computer readable storage medium, with the goal of realizing reserve requirements for dynamic operation. After considering the operating reserve price of a power generator set and the objective function and constraint conditions of the operating reserve plan. The security constrained economic dispatching method comprises the following steps: calculating the output plan and operating reserve plan of the set through substituting the operational reserve requirement of given power grid into the objective function and the constraint conditions; obtaining the operational reserve requirement of the current power grid using the operational reserve plan; deciding whether the coefficient of convergenceis met by comparing the operational reserve requirements of current power grid to the previous operational reserve requirements of current power grid, and if the coefficient of convergence is not met,substituting the operational reserve requirements of current power grid into the objective function and the constraint conditions again to obtain the next operational reserve requirements of the power grid and performing repeated iteration until the coefficient of convergence is met; outputting the operational reserve requirement of current power grid and the output plan of the set; the securityconstrained economic dispatching method reduces operating reserve level of the system and improves electric energy availability of the power generator set and running benefit of the power grid.
Description
technical field [0001] The present invention relates to the technical field of electric power dispatching automation, in particular to a security-constrained economic dispatching method, system, device and computer-readable storage medium. Background technique [0002] Operation reserve is an important content in the arrangement of power system operation mode. Its purpose is to stabilize the mismatch between supply and demand caused by load forecast deviation, and to meet the power shortage caused by grid equipment failure. [0003] In the arrangement of traditional power grid operation mode, the method of constant operation reserve reservation is often adopted. Its main feature is to determine the operation reserve level of each period of the day according to the impact of load forecast deviation under extreme power grid mode and the maximum power shortage that may be caused by a single component failure. Based on this, the power generation plan of the generating set is com...
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Login to view more IPC IPC(8): H02J3/46
CPCH02J3/46H02J2203/20
Inventor 张轩白杨陈雨果蔡秋娜罗钢
Owner GUANGDONG POWER GRID CO LTD
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