Method for planning hybrid power distribution network with renewable energy generation

A renewable energy and distribution network planning technology, applied in wind power generation, single-network parallel feed arrangement, etc., can solve the problems of low accuracy of planning results, lack of consideration of distribution network, and low applicability of planning schemes

Pending Publication Date: 2020-03-06
YICHANG POWER SUPPLY CO OF STATE GRID HUBEI ELECTRIC POWER CO LTD
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  • Application Information

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Problems solved by technology

The planning methods of a small number of AC-DC hybrid distribution networks do not consider the randomness of renewable energy power generation, lack of consideration of the distribution network's participatio...

Method used

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  • Method for planning hybrid power distribution network with renewable energy generation
  • Method for planning hybrid power distribution network with renewable energy generation
  • Method for planning hybrid power distribution network with renewable energy generation

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Embodiment Construction

[0075] Such as figure 1 A hybrid distribution network planning method including renewable energy power generation is shown, which includes an AC-DC hybrid distribution network. The AC-DC hybrid distribution network includes a DC part 1 and an AC part 2, and both the AC part 1 and the DC part 2 can be Access to renewable energy power generation devices and user loads, the DC part 1 and the AC part 2 are connected through the connection device 3, and the AC part 2 is also connected to the external power grid;

[0076] Preferably, the connection device 3 is a power electronic converter device.

[0077] The renewable energy power generation device includes a wind turbine power generation device and a photovoltaic power generation device, and the following steps are used when planning the distribution network:

[0078] Step 1: Establish fan model, photovoltaic model, and load demand model;

[0079] Step 2: Simulate the uncertainties related to wind speed, light intensity and load...

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Abstract

A method for planning a hybrid power distribution network with renewable energy generation is provided, which includes an AC-DC hybrid power distribution network. The AC-DC hybrid power distribution network includes a DC part and an AC part. Both the AC part and the DC part can be connected to a renewable energy power generation device and a user load. The DC part and the AC part are connected through power electronic converter equipment. The AC part is also connected to an external power grid. The purpose of the invention is to provide a method for planning an AC-DC hybrid power distributionnetwork with renewable energy generation that can well take into account the operation cost of the renewable energy generation and the supply benefits of the hybrid power distribution network, takes into account the randomness of the renewable energy power generation output power, and takes into account the needs of the power distribution network to participate in external power market transactions.

Description

technical field [0001] The invention belongs to the technical field of power distribution, and in particular relates to a planning method for a hybrid distribution network including renewable energy power generation. Background technique [0002] The penetration rate of renewable energy power generation such as wind power and photovoltaic power generation in the distribution network is increasing day by day, which provides new means for solving the local load balance of the distribution network and improving the reliability of power supply. But on the one hand, the initial output effects of these renewable energy power generation are different. For example, the output of photovoltaic power generation is DC, while the output of wind power generation is AC. The unified conversion to AC to supply power to loads reduces the efficiency of power utilization and increases equipment investment. Therefore, AC and DC coexist. The hybrid distribution network is a new development trend....

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/48
CPCH02J3/48Y02E10/76
Inventor 姚俊伟邓玲王海亮杨星磊杨荆宜李卫平项川姜鸣瞻谢琼瑶代璐金潇杨楚原何奇王芹
Owner YICHANG POWER SUPPLY CO OF STATE GRID HUBEI ELECTRIC POWER CO LTD
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