An active demand energy storage design method for air-conditioning nonlinear group load operation

Abstract

The invention relates to an air conditioning nonlinear group load operation active demand energy storage design method, belonging to the technical field of control system. In combination with the characteristics of start-up, operation and energy consumption of air conditioning nonlinear group load, considering the demand pressure of peak load regulation and dispatching reserve capacity, the methodproposes a scheme of energy storage participating in harmonic treatment and energy dispatching of nonlinear group load operation. At first, the power required for harmonic process is calculated on the basis of analyzing the harmonic component of the nonlinear group load operation; Secondly, in combination with the practical feasibility of energy-saving operation dispatching of multi-load and gridfault and peak-valley compensated energy active demand, the peak-valley compensated energy storage capacity is calculated. Finally, in combination with the above two functional requirements, the total energy storage capacity is configured, energy scheduling management design is performed. The invention has reasonable configuration of energy storage and reasonable dispatching strategy, and can realize active demand management of nonlinear group load operation.

Description

technical field [0001] The invention relates to an active demand energy storage design method for air-conditioning nonlinear group load operation, which belongs to the technical field of control systems. Background technique [0002] In response to energy-saving policies, many air-conditioning manufacturers have launched inverter air conditioners, but a large number of energy-saving inverter air conditioners connected to the power grid will cause a large number of harmonics to the power grid, affecting the normal operation of other equipment and affecting power quality. The non-sinusoidal current generated by the air-conditioning nonlinear group load is the harmonic source of the public power grid. Since the harmonic source injects harmonic current into the power grid, a harmonic voltage drop is generated on the circuit impedance, which is superimposed with the sine wave voltage, resulting in The grid voltage waveform is distorted, which affects the quality of power supply. ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that nonlinear group load operation brings harmonics to the power grid, and at the same time causes a large amount of energy loss. Active filtering requires a DC power supply. The rectification process may bring harmonics for the second time, and the second harmonic processing power supply requires 24 Hourly uninterrupted power supply, higher peak demand of grid power consumption, very unfavorable to technical problems of grid operation, an active demand energy storage design method for air-conditioning nonlinear group load operation

Images