| 摘要 |
<p>The invention relates to an autonomous hybrid system for producing electric energy by using wind and sun energy. According to the invention, the system comprises a wind system (1) and some photovoltaic modules (2), both systems (1, 2) being connected in parallel to a direct current circuit and equipped with some specialized regulators (3, 4) which allow the controlled charging of a system (5) of storage batteries, connected to the same direct current circuit, and directing of the excess of electrical energy that was produced by the wind conversion towards a diversion load (6), various direct current consumers (7) and a direct current machine (8) being connected to the terminals of direct current circuit, the direct current machine being controlled by means of a control system (9) mounted on the excitation circuit, being meant to control speed, voltage and current of the machine, the machine (8) working as a motor or generator, depending on the battery charge level, so that when the batteries are charged over a pre-established threshold limit the energy furnished by the batteries and, possibly, by the systems (1, 2) puts into motion the machine (8) which works as a motor controlled by means of a system (9) and which drives, in its turn, a synchronous generator (10) furnishing energy at the imposed parameters ( 230 V AC and 50 Hz) to a local consumer network (11), the regulation of the parameters of the electric energy furnished to the network (11) being ensured by strictly controlling the speed of the machine (8) by means of the system (9), and when the batteries are discharged under a pre-established threshold limit, an automation block (12) gives the command to start a thermal engine (13) which is coupled on the same shaft both with the generator (10) and the machine (8) which operates as generator, by means of a mechanism (14), the generator furnishing energy to the network (11) at the imposed parameters by means of a control block (15).</p> |
