Electromagnetic Compatibility of Compensating Devices and Converters of an Adjustable Electric Drive in Electrical Networks of Industrial Enterprises

The problems of reactive power compensation and improving the quality electrical energy in supply systems industrial enterprises are inseparable. Their relevance is due to widespread use electric receivers that consume distort network, as well implementation new technologies, equipment into production make increased demands on consumed. An important characteristic rationed by GOST 32144–2013 non-sinusoidal voltage. main reason for voltage networks with a nonlinear characteristic, which source conductive electromagnetic interference, particular: adjustable DC AC drives, uninterruptible supplies receivers, welding equipment, arc furnaces, induction heating installations, gas-discharge radiation sources. Due nonlinearity current-voltage characteristics, above devices current from causes harmonic distortion voltage, including fundamental component higher components multiples frequency. Non-sinusoidal turn, additional losses elements overheating accelerated aging insulation reducing its operational reliability service life, worsens accuracy measurements, malfunctions automation systems, telemechanics, relay protection, electronic communications. significantly complicates network. Compensating made basis capacitors, whose parameters (resistance, power, current) depend both magnitude composition. present article identifies proposes solutions terms containing thyristor converters frequency used drive installations enterprises.