Full-distributed power grid-regional heat supply network joint scheduling method considering communication transmission errors
A communication transmission, fully distributed technology, applied in the field of distributed dispatching of combined heat and power systems
Pending Publication Date: 2020-12-18
SOUTH CHINA UNIV OF TECH
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However, most of the current research on distributed optimization algorithms establishes ideal communication conditions, ignoring the problem of communication transmission errors that may occur in distributed communication transmission. Robustness under
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[0047] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0048] Such as figure 1 As shown, the fully distributed power grid-regional heating network joint scheduling method considering communication transmission errors provided by this embodiment includes the following steps:
[0049] S1, set the number of iterations k = 0, the algorithm original residual termination condition ε pri and the dual residual termination condition ε dual , relaxation step α and penalty factor ρ, initialize the boundary variables and auxiliary Lagrangian multiplier values of the power grid and each heating network, including the initial value of the grid boundary variables and heat network boundary variables Initial value of grid-assisted Lagrange multipliers and heat network auxiliary Lagrangian multiplier values
[0050] Among them, se...
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The invention discloses a fully distributed power grid regional heat supply network joint scheduling method considering a communication transmission error. The method comprises the following steps: (1) setting an iteration frequency k = 0, an algorithm termination condition, a relaxation step length and a penalty factor, and initializing boundary variables and auxiliary Lagrange multiplier valuesof a power grid and a heat supply network; (2) independently solving sub-problems of the power grid and the heat supply network dispatching center to obtain corresponding optimal values; (3) updatingthe boundary variables and transmitting the boundary variables to the adjacent areas via the power grid and heat supply network scheduling center; (4) detecting whether a boundary variable from an adjacent region is received or not via the power grid and heat supply network dispatching center, updating an auxiliary Lagrange multiplier value if yes, and regarding the same as communication errors ifnot, and not updating the auxiliary Lagrange multiplier; (5) judging whether an algorithm termination condition is met or not, outputting an optimal result after optimization of the power grid and the heat supply network if so, and enabling k to be equal to k + 1 and repeating the steps (2)-(5) until the algorithm termination condition is met if not. The method has the characteristics of high calculation efficiency, high robustness and the like.
Description
technical field [0001] The invention relates to the technical field of distributed scheduling of cogeneration systems, in particular to a fully distributed power grid-regional heating network joint scheduling method considering communication transmission errors. Background technique [0002] Compared with traditional thermal power units, combined heat and power (CHP) units are more energy-saving and efficient, and have been widely used in recent years. At present, some progress has been made in the research on the joint dispatching operation of the grid-district heating network. Some intelligent optimization algorithms and traditional optimization methods have been applied to solve the joint dispatching problem of the grid-district heating network. [0003] Since the heating network and the power grid are independently operated and managed by their respective dispatch centers, the power grid and the heating network cannot obtain all the status and information of each other, ...
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Login to View More IPC IPC(8): G06Q10/06G06Q50/06H04L12/24
CPCG06Q10/06312H04L41/0836H04L41/145H04L41/142G06Q50/06Y04S10/50Y02E40/70
Inventor 李志刚梁芯瑜
Owner SOUTH CHINA UNIV OF TECH