Voltage-mode IPT system efficiency optimizing control circuit and method
A system efficiency and optimization control technology, applied in electromagnetic wave systems, circuit devices, electrical components, etc., can solve the problem that the transmission efficiency of the system cannot be optimal
Active Publication Date: 2015-03-18
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD +1
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Problems solved by technology
Although such a design can guarantee the stability of the system input and output to a certain extent, the system transmission efficiency cannot be optimized.
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[0041] The specific implementation manner and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0042] Such as figure 2 As shown, a voltage-type IPT system efficiency optimization control circuit includes a primary side control circuit and a secondary side control circuit. The primary side control circuit includes a primary side voltage regulating circuit 1, a high frequency inverter circuit 2, and a primary side compensation circuit 3 and the primary side coil, the secondary side control circuit includes a secondary side coil, a secondary side compensation circuit 4, a rectification filter circuit 5 and a secondary side voltage regulating circuit 6, the input terminal of the primary side voltage regulating circuit 1 is connected to a power supply, and the secondary side The output end of the voltage regulating circuit 6 is connected to the load 7;
[0043] The primary side current detection mo...
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The invention discloses a voltage-mode IPT system efficiency optimizing control circuit and method. A primary-side control circuit comprises a primary-side voltage adjustment circuit, a high-frequency inverter circuit, a primary-side compensation circuit, a primary-side coil, a primary-side current detection module, a primary side and secondary side current ratio controller and a primary-side coil constant-current control module. A secondary-side control circuit comprises a secondary-side coil, a secondary-side compensation circuit, a rectification and filter circuit, a secondary-side voltage adjustment circuit, a secondary-side current detection module and a secondary-side constant-voltage control module. The voltage-mode IPT system efficiency optimizing control circuit has the advantages that the relationship between the primary side and secondary side current ratio and system transmission efficiency is fully utilized, and the primary side and secondary side current ratio control idea is adopted for achieving the optimization of system efficiency; the voltage-mode IPT system efficiency optimizing control circuit is simple in structure and convenient to use; on the premise that secondary-side output voltage is stable, the voltage-mode IPT system efficiency optimizing control circuit ensures that the system achieves maximum-efficiency output within a wide load range through primary side and secondary side current and voltage detection and the adoption of a multi-path proportional controller,.
Description
technical field [0001] The present invention relates to an inductive power transfer (Inductive Power Transfer, IPT) technology, in particular to a voltage-type IPT system efficiency optimization control circuit and a control method thereof. Background technique [0002] Inductive Power Transfer technology (IPT technology for short), is a new technology that transfers energy to loads in a non-contact manner through electromagnetic coupling. Compared with the traditional conductor power supply method, because the energy transmission medium of the IPT system is an electromagnetic field, it has the characteristics of safety, reliability and flexibility, so it is widely used in medical organism power supply, electric vehicle wireless charging power supply, etc., which are not suitable for traditional wire power supply. occasion. [0003] As an energy transmission technology, transmission efficiency is particularly important. In order to realize the control and protection of the...
Claims
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IPC IPC(8): H02J17/00H02J50/10
Inventor 高立克唐春森祝文姬王智慧吴智丁孙跃吴丽芳苏玉刚吴剑豪戴欣李克文叶兆虹俞小勇李珊
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD