Grid frequency floating energy self-balancing power grid system and power adjusting method

Abstract

The invention discloses a network frequency floating energy self-balancing power grid system and a power adjusting method, and belongs to the technical field of power systems. The grid frequency floating energy self-balancing power grid system is an independent isolated grid system composed of power generation equipment, an inverter, a motor and a water pump, and self-power-generation water pumping operation of a pump set is achieved. The key technology is that the frequency of the power grid system fluctuates, the power and the rotating speed of the water pump change accordingly, the flow is self-adjusted under the condition that the lift is not changed, and self-balancing of energy of the power grid system is achieved. The method has the advantages that independent operation of a traditional constant-voltage and constant-frequency power grid can be separated, normal operation of electric equipment is not affected when the frequency of the power grid changes, high energy balance adaptivity is achieved, random intermittent energy of the area where the power grid is located can be fully utilized, and the nearby power generation and nearby consumption scenery are achieved.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a grid frequency floating energy self-balancing power grid system and a power adjustment method. Background technique [0002] The power grid system is a bridge connecting power plants and power users. The power plants transmit the generated power to the power grid, and power users obtain power from the power grid to drive electrical equipment to work. The frequency of the power grid is affected by the power of the power generating equipment and the power of the electrical equipment. When the power of the power generation is greater than the power of the power consumption, the frequency of the power grid increases; when the power of the power generation is less than the power of the power consumption, the power grid frequency decreases. my country's power grid is a constant voltage and constant frequency power grid with a frequency of 50Hz. All electrical equipment can only...

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Problems solved by technology

The adjustment of grid frequency needs to rely on a third-party system, which not only increases the cost of electricity consumption, but also wastes resources due to power abandonment or power rationing

[0003] At the same time, in order to promote the high-quality development of energy and promote the comprehensive green transformation of the economy and society, unstable solar energy has begun to be integrated into the grid on a large scale, which poses more serious challenges to grid balance and absorption flexibility.

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