Control device for novel vertical axis wind power generation system

Abstract

The invention relates to the technical field of power supply, in particular to a control device used for a novel vertical axle wind generating system which is characterized in that one end of a main clock Clk_glb is connected with the control device; one end of a power network standard pulse signal Pulse_Ne is connected with the control device; one end of the output pulse signal Pulse_N0 of a mechanical energy storage wind powerplant of the vertical axle wind generating system is connected with the control device; the control device is provided with a pulse signal which is output and connected with the vertical axle wind generating system; the pulse signal at one end of the vertical axle wind generating system is fed back to one end of the control device; the control device consists of three modules of frequency regulating, phase locking and colligation; compared with the prior art, the invention has a novel structure; a comparing of the frequencies and phase positions of a generator output pulse signal Pulse-N and a power network pulse signal Pulse_Ne is completed by the control device driven by the main clock Clk_glb, and an adjusting signal Pulse_out of a coupling module is generated according to the frequency difference value and the phase position value of the two as well as the output pulse signal Pulse-N0 of the mechanical energy storage wind powerplant, thus adjusting the input of the generator and leading the output signal of the generator to achieve the requirement of network-connection.

Description

[technical field] [0001] The invention relates to the technical field of power supply, in particular to a control device for a new vertical axis wind power generation system. [Background technique] [0002] There is huge energy in the natural wind, which is a kind of pollution-free and renewable green energy. We have been able to convert wind energy into mechanical energy through the vertical axis wind wheel, and obtain relatively stable mechanical energy through the compound transmission mechanism and the centrifugal variable inertia mechanical energy storage mechanism, which can drive the generator to generate electricity. But this is not our ultimate goal. What we want to achieve is grid-connected power generation, so the frequency, phase and voltage must be synchronized with the grid, commonly known as synchronization. [0003] At present, there are two popular schemes for grid-connected power generation at the same time: one is the power generation-rectification-storag...

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Problems solved by technology

[0003] At present, there are two popular schemes for grid-connected power generation at the same time: one is the power generation-rectification-storage-inversion-grid-connected mode. Batteries and UPS are high in cost and have certain environmental pollution, so they are being phased out in medium and high power applications

The other is the variable-speed constant-frequency direct power generation grid-connected mode, which can automatically adapt to the speed of wind power machinery. By applying double-fed control technology, the generator can directly output electric energy that can be connected to the grid at the same time. In theory, the power storage link can be omitted. , but requires a generator with a special rotor, high self-consumption, high IGBT damage rate, low performance at low wind speed, and the intellectual property rights of the doubly-fed control system are controlled by foreign companies, so the cost remains high

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