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Inverter system control method and device, equipment, storage medium and program product

A control method and inverter technology, which are applied to output power conversion devices, irreversible DC power input to AC power output, electrical components, etc., can solve the problem of low current balance and improve the current balance. , The effect of reducing output voltage deviation

Pending Publication Date: 2022-03-25
SHENZHEN POWER SUPPLY BUREAU
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Problems solved by technology

In order to achieve current balance output by each inverter in the IPOP DC-AC inverter system, the droop control method is usually used in the prior art to control the IPOP DC-AC inverter system, however, the droop control method in the prior art The current balance degree of each inverter controlled by the control method is not high

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  • Inverter system control method and device, equipment, storage medium and program product
  • Inverter system control method and device, equipment, storage medium and program product
  • Inverter system control method and device, equipment, storage medium and program product

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Embodiment Construction

[0030] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0031] The DC-AC inverter is a converter that converts DC power into AC power, and its circuit topology is various. Among them, the input-parallel output-parallel (IPOP for short) in the DC-AC inverter system has been widely used in power grid-related equipment. In order to achieve current balance output by each inverter in the IPOP DC-AC inverter system, the droop control method is usually used in the prior art to control the IPOP DC-AC inverter system, however, the droop control method in the prior art The current balance degree of each inverter controlled by the contro...

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Abstract

The invention relates to an inverter system control method and device, equipment, a storage medium and a program product, and belongs to the technical field of inverters. The method comprises the following steps: for each DC-AC module, a controller obtains a compensation parameter, adjusts a droop control flow corresponding to the DC-AC module according to the compensation parameter, obtains a control signal of the DC-AC module based on the adjusted droop control flow, and controls the operation of the DC-AC module according to the obtained control signal; wherein the compensation parameter comprises at least one of the common bus voltage and the output voltage of the DC-AC module. By adopting the method, the operation of each DC-AC module can be controlled, so that the current balance degree among the DC-AC modules can be improved.

Description

technical field [0001] The present application relates to the technical field of inverters, in particular to an inverter system control method, device, equipment, storage medium and program product. Background technique [0002] The DC-AC inverter is a converter that converts DC power into AC power, and its circuit topology is various. Among them, the input-parallel output-parallel (IPOP for short) in the DC-AC inverter system has been widely used in power grid-related equipment. In order to achieve current balance output by each inverter in the IPOP DC-AC inverter system, the droop control method is usually used in the prior art to control the IPOP DC-AC inverter system, however, the droop control method in the prior art The current balance degree of each inverter controlled by the control method is not high. Contents of the invention [0003] Based on this, it is necessary to provide an inverter system control method, device, equipment, storage medium and program produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/44H02M1/08H02M1/36
CPCH02M7/44H02M1/08H02M1/36
Inventor 刘国伟郭佩乾袁志昌赵宇明王静
Owner SHENZHEN POWER SUPPLY BUREAU
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