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An online optimization method for regional comprehensive energy system considering power-to-gas technology

An integrated energy system and optimization method technology, applied in the field of online optimization of regional integrated energy systems, can solve problems such as low energy utilization, large prediction errors, and poor user experience

Active Publication Date: 2021-04-06
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0006] In order to overcome the shortcomings of the existing comprehensive energy system, such as large prediction error, poor user experience, and low energy utilization rate, the present invention provides a controllable load HVAC as the main decision-making body, and then realizes event-driven online energy optimization. The aim is to ensure user comfort while minimizing user costs, and at the same time absorb as much renewable energy as possible, improve energy utilization, and realize an energy online collaborative optimization method for both sides of supply and demand

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  • An online optimization method for regional comprehensive energy system considering power-to-gas technology
  • An online optimization method for regional comprehensive energy system considering power-to-gas technology
  • An online optimization method for regional comprehensive energy system considering power-to-gas technology

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[0096] The present invention will be further described below in conjunction with the accompanying drawings.

[0097] refer to Figure 1 to Figure 7 , an online optimization method for regional integrated energy systems considering power-to-gas technology, including the following steps:

[0098] S1 obtains real-time information on system status

[0099] The real-time information of the system includes real-time HVAC accumulative alignment Q(t), wind power generation S(t), base load L B (t), HVAC power demand L(t), current grid power price R(t) and current indoor temperature T(t). Among them, base load, indoor temperature and grid electricity price can be directly transmitted to the energy management center through information flow.

[0100] Controllable load HVAC is the scheduling object of integrated demand response, and the power demand L(t) at time t can be expressed as:

[0101] L(t)=[L 1 (t),L 2 (t),...,L N (t)],t∈[1,2,...,T] (1)

[0102] In the case of meeting the...

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Abstract

An online optimization method for regional integrated energy systems that takes into account power-to-gas technology to obtain real-time information on system status; when an event is triggered, the system will generate a trigger signal and notify the power controller to respond to the event; based on Lyapunov’s energy Online optimization to obtain the current optimal actual power consumption X(t) of HVAC; perform energy scheduling for other units in the system. The invention provides a controllable load HVAC as the decision-making subject, and then realizes event-driven energy online optimization, which aims to ensure user comfort while minimizing user cost, and at the same time consume as much renewable energy as possible to improve Energy utilization, realize the energy online collaborative optimization method for both supply and demand sides. With HVAC as the main decision-making body, collaborative optimization on both sides of supply and demand ensures user comfort while minimizing user costs. It is expected to provide a fast scheduling method for energy management of integrated energy systems.

Description

technical field [0001] The invention relates to an on-line optimization method of a regional comprehensive energy system considering the power-to-gas technology. Background technique [0002] Energy utilization in today's society is developing in the direction of multi-energy integration and collaborative optimization. Break the traditional mode of independent operation between energy systems such as electricity and natural gas networks, and coordinate, coordinate and optimize different energy supply systems as a whole in the stages of planning, design, construction and operation, and finally realize an integrated comprehensive energy system (Integrated Community Energy System, ICES) is the best way to achieve the optimal efficiency of social energy use, promote the large-scale utilization of renewable energy (Renewable Energy Source, RES), and realize the sustainable development of human energy. [0003] The fluctuation and intermittency of the power generation output of r...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46H02J3/14
CPCH02J3/14H02J3/46H02J2203/20Y02B70/30Y02B70/3225Y04S20/222Y04S20/244
Inventor 王国烽张有兵杜夏冰杨晓东王嘉瑶
Owner ZHEJIANG UNIV OF TECH
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