Active distribution network distributed power planning method in consideration of energy storage and reactive power compensation

A technology of distributed power supply and active distribution network, which is applied in the direction of instruments, data processing applications, computing, etc., and can solve the problems of failing to consider distributed power supply at the same time

Active Publication Date: 2018-01-16
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

None of the current active distribution network planning studies consider distributed power generation, energy storage, and compensation capacitors as planning options at the same time

Method used

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  • Active distribution network distributed power planning method in consideration of energy storage and reactive power compensation
  • Active distribution network distributed power planning method in consideration of energy storage and reactive power compensation
  • Active distribution network distributed power planning method in consideration of energy storage and reactive power compensation

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] This example takes the IEEE-33 node power distribution system as an example for calculation, and its structure is as follows Figure 5 shown. . The system's reference capacity is 100MVA, the reference voltage is the rated voltage of 12.66kV, and the total network load is (3715+j2300)kVA. The range of node voltage is 0.95~1.05p.u., the highest penetration level of distributed power grid connection is set to 20%, and the number of nodes connected to active distribution network by distributed power is 2. The maximum number of nodes installed for energy storage equipment is 3, and the upper limit of node energy storage capacity is 200kW. For the convenience of management and maintenance, the upper limit of the number of nodes with compensation capacitors is set to 5. The compensation capacitors are connected to the power grid i...

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Abstract

The invention discloses an active distribution network distributed power planning method in consideration of energy storage and reactive power compensation. The method comprises the following steps: under the constraints of conditions such as power balance, node voltage, node distributed power capacity and energy storage equipment output power, a multi-objective optimization planning model for integrating system voltage offset, line active power loss, average power supply reliability and greenhouse gas emissions is built; a fuzzy control method based on node voltage and a power loss sensitivity factor is adopted to initialize a distributed power connection position; an improved multi-objective particle swarm optimization algorithm is adopted for optimization solution; and in view of the acquired noninferior solution set, a fuzzy decision technology is adopted to get a final scheme which meets the preference of a decision-maker. Through analyzing the correctness and the feasibility of the active distribution network power optimization planning model, the optimal planning scheme is selected, safe and stable operation of the active distribution network is thus ensured, and the economic benefits and the environmental benefits are improved.

Description

technical field [0001] The invention relates to the field of active distribution network power supply planning, and more specifically relates to a distributed power supply planning method for active distribution network considering energy storage and reactive power compensation. Background technique [0002] The energy structure dominated by fossil fuels has made the power industry the largest CO source in my country's national economy. 2 emissions sector. Therefore, promoting the effective development and utilization of renewable energy and realizing the low-carbonization of the power industry has become an inevitable choice for my country to achieve the goals of energy conservation, emission reduction and ecological civilization. The traditional distribution network adopts a passive control method. With the continuous increase of distributed power access, it can no longer meet the safe, reliable and diversified power supply needs of grid users. By actively controlling an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 卢锦玲赵大千
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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