Power distribution network cooperative operation method oriented to multi-investment subject and multi-element interaction

Abstract

The invention discloses a multi-investment subject and multi-element interaction-oriented power distribution network cooperative operation method, the method comprises the following steps that whethera power distribution network has unbalanced electric quantity or not is judged, and interactive coordination information is sent to each distributed energy investment operation main body by a power distribution network operator; each distributed energy investment operation main body determines an interaction electric quantity and an interaction effect according to operation characteristic constraints of the distributed energy investment operation main body; the power distribution network operator collects interactive response information returned by each distributed energy investment operation main body and determines a response sequence according to the benefit priority; the power distribution network operator collects the interactive response information returned by each distributed energy investment operation main body and determines a response sequence according to the benefit priority; and the power distribution network operator determines a cooperative scheduling plan accordingto the response sequence, and when the residual unbalanced electric quantity is zero, each distributed energy investment operation main body executes scheduling arrangement according to a cooperativeinteraction plan. According to the invention, the problem of benefit distribution among multiple investment main bodies and the problem of safe and stable operation of the power distribution network under the condition that the distributed energy proportion is continuously increased can be solved.

Description

technical field [0001] The invention relates to the field of distribution network, in particular to a method for coordinated operation of distribution network oriented to multi-investment subjects and multi-variety interaction. Background technique [0002] Recently, due to the global energy shortage and environmental crisis, the distributed energy represented by clean energy such as distributed photovoltaic and distributed wind power in the distribution network has been widely used and developed rapidly. But the ensuing question is how the distribution network needs to effectively deal with the impact and impact on the safe and stable operation of the system due to the randomness and volatility of clean energy output, for example, due to the difference between its output period and load curve. The reverse power flow phenomenon caused by matching will bring potential threats to the power flow distribution of medium and high voltage distribution networks. On the other hand, ...

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Problems solved by technology

But the ensuing question is how the distribution network needs to effectively deal with the impact and impact on the safe and stable operation of the system due to the randomness and volatility of clean energy output, for example, due to the difference between its output period and load curve. The reverse power flow phenomenon caused by matching will bring potential threats to the power flow distribution of the medium and high voltage distribution network

On the other hand, due to the advancement of the market-oriented reform process on the distribution side, social capital can more freely join in the investment in incremental assets of the distribution network. Due to the natural zero marginal cost of renewable energy and the high national Subsidies, more and more investors are gradually participating in the competition in the field of investment and operation of distributed energy assets in the distribution network. However, due to the different characteristic parameters and geographical distribution of distributed energy asset equipment owned or operated by different different capacity, different control mechanisms, etc., so that the distribution network cannot accurately predict and estimate its possible power supply capacity effectively, so this also makes the distribution network operator have to Consider how to protect the interests of distributed energy investors to ensure that they can reliably implement dispatch plans

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