A Novel Wind Power Generator System with Automatic Maximum Power Tracking Capability

Abstract

This paper presents a novel off-grid wind power generator system that consists of a permanent magnet (PM) generator, two rectifiers, a battery, and loads. The PM generator has a novel stator structure and two Y-connected winding sets. The wind power generator system can automatically track the maximum power from wind without the need for converters and control circuits, and has higher reliability and lower loss. This paper also describes the operational principle and mathematical model of the system. A prototype is manufactured, and experiments prove that the new system efficiently captures maximum power from wind across a wide speed range.Index Terms-Double winding, maximum power point tracking (MPPT), off-grid, permanent magnet (PM) synchronous generator, wind power.

Overview of wind power generation in China: Status and development

“…Tianjin University proposed a nonlinear-PID controller for rotating speed control, and the optimal speed is estimated by fuzzy controller [94]. Harbin Institute of Technology proposed a new generator configuration with three external saturable reactors to adjust the output characteristics by tracking the maximum power automatically, eliminating the loss of electrical control devices [95].…”

Non-cooperative regulation coordination based on game theory for wind farm clusters during ramping events

“…Ramping events are defined as significant changes of wind power output according to a set of rules such as a minimum power swing or duration [4]. In order to improve control performance of wind power, a lot of work has been done on the control of wind turbines, wind farms and wind farm clusters (WFCs) [7][8][9][10][11].…”

“…For wind turbines, the focus is maximum power point tracking (MPPT) [7], and frequency and damping control [12][13][14]. For wind farms, the research aims to improve MPPT and schedule tracking abilities of wind farms.…”

Power Extraction Strategy of a Robust kW Range Marine Tidal Turbine Based on Permanent Magnet Synchronous Generators and Passive Rectifiers

“…This classical solution requires in all cases, the implementation of complex power electronics for controlling the generator torque and speed. The aim of our work is to follow the maximum power operating point with an automatic and passive method, without using electrical control devices in a similar way as proposed in [6] for an off-grid wind power system. The advantage of this solution is to eliminate the losses of converter, to reduce costs and improve the system reliability compared to conventional systems.…”